/* ETERNAL WEEKEND ASIA 2026 — Japanese / English shared styles
 * 01. Foundation: reset, variables, shared components
 * 02. Arena theme: main visual and page layouts
 * 03. Event refinements: typography, prizes, packages, responsive navigation
 * 04. Language adjustments
 * Keep this order: later sections intentionally refine earlier rules.
 * Asset URLs remain absolute, so moving this CSS does not break images/fonts.
 */

/* ==================== 01. FOUNDATION ==================== */
/* ==================== 基本設定・共通変数 ==================== */
:root {
  --ink: #07110b;
  --ink-soft: #0c1a11;
  --paper: #eef0e7;
  --muted: #9ba69d;
  --line: rgba(255, 255, 255, 0.14);
  --teal: #9bc576;
  --blue-deep: #164c73;
  --orange: #ee6a2c;
  --header: 82px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  font-feature-settings: "palt" 1;
}
body.menu-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 999;
  top: -60px;
  left: 16px;
  padding: 12px 18px;
  background: white;
  color: black;
  transition: 0.2s;
}
.skip-link:focus {
  top: 12px;
}

/* ==================== ヘッダー・ナビゲーション ==================== */
.prototype-bar {
  min-height: 28px;
  padding: 5px 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  background: var(--teal);
  color: #041012;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.prototype-bar span {
  font-weight: 900;
}
.prototype-bar p {
  margin: 0;
  opacity: 0.8;
}
body[data-route="vintage"] .prototype-bar {
  background: var(--blue);
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  height: var(--header);
  padding: 0 3vw;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: 28px;
  background: rgba(7, 10, 11, 0.9);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
}
.brand-logo {
  display: block;
  width: clamp(178px, 18vw, 235px);
  height: auto;
}
.brand-mark {
  position: relative;
  width: 34px;
  height: 42px;
  display: block;
  clip-path: polygon(50% 0, 100% 16%, 84% 76%, 50% 100%, 16% 76%, 0 16%);
  background: linear-gradient(135deg, var(--teal), #d6e4bf);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  clip-path: inherit;
  background: var(--ink);
}
.brand-mark i {
  position: absolute;
  z-index: 1;
  width: 2px;
  height: 22px;
  top: 8px;
  left: 16px;
  background: var(--paper);
  transform: rotate(24deg);
}
.brand-type {
  display: grid;
  line-height: 1;
}
.brand-type b {
  font-family:
    Arial Narrow,
    Impact,
    sans-serif;
  font-stretch: condensed;
  font-size: 17px;
  letter-spacing: 0.04em;
}
.brand-type small {
  margin-top: 5px;
  font-size: 9px;
  letter-spacing: 0.35em;
  color: var(--teal);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 25px;
}
.site-nav a {
  position: relative;
  padding: 30px 0 26px;
  font-weight: 700;
  color: #b9bcbb;
  white-space: nowrap;
  transition: 0.2s;
}
.site-nav a:hover,
.site-nav a.is-active {
  color: white;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 0;
  height: 2px;
  background: var(--teal);
  transition: 0.25s;
}
.site-nav a:hover::after,
.site-nav a.is-active::after {
  left: 0;
  right: 0;
}
body[data-route="vintage"] .site-nav a.is-active::after {
  background: var(--blue);
}
.header-cta {
  justify-self: end;
  padding: 13px 18px;
  background: var(--paper);
  color: var(--ink);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  transition: 0.2s;
}
.header-cta:hover {
  background: var(--teal);
}
.menu-toggle {
  display: none;
}

.view {
  min-height: calc(100vh - var(--header));
  animation: viewIn 0.45s ease both;
}
.view[hidden] {
  display: none !important;
}
@keyframes viewIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
/* ==================== 共通レイアウト・見出し ==================== */
.content-shell {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}
.kicker,
.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.28em;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1;
  letter-spacing: -0.04em;
}
.section-heading > p:last-child {
  color: var(--muted);
}
.section-heading.compact {
  max-width: 560px;
}

/* ==================== トップ：メインビジュアル ==================== */
.hero {
  position: relative;
  min-height: calc(100vh - 110px);
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.hero-backdrop {
  position: absolute;
  z-index: 0;
  inset: 0;
  background: url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp")
    54% 50% / cover no-repeat;
  transform: scale(1.015);
}
.hero::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(5, 18, 10, 0.94) 0%,
      rgba(5, 18, 10, 0.72) 42%,
      rgba(5, 18, 10, 0.18) 76%
    ),
    linear-gradient(0deg, #07110b 0%, transparent 42%),
    linear-gradient(180deg, rgba(6, 17, 10, 0.12), rgba(15, 55, 30, 0.12));
}
.hero-grid {
  position: absolute;
  z-index: 1;
  inset: 0;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, #000, transparent 70%);
}
.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
  padding: 70px 0 140px;
}
.hero-logo-title {
  width: min(790px, 68vw);
  margin: 0;
  line-height: 1;
}
.hero-logo-title img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 4px 18px rgba(0, 0, 0, 0.44));
}
.hero-year {
  margin: 20px 0 0 3px;
  color: var(--teal);
  font:
    900 clamp(15px, 1.8vw, 23px) / 1 Arial,
    sans-serif;
  letter-spacing: 0.45em;
}
.hero-copy {
  margin: 38px 0 30px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.8;
  letter-spacing: 0.08em;
}
.hero-meta {
  max-width: 780px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-block: 1px solid var(--line);
}
.hero-meta > div {
  padding: 20px 28px 20px 0;
  display: grid;
  gap: 8px;
}
.hero-meta > div + div {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}
.hero-meta small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.24em;
}
.hero-meta b {
  font-family: Arial, sans-serif;
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: 0.02em;
}
.hero-meta b span {
  margin-left: 5px;
  color: var(--teal);
  font-size: 9px;
  vertical-align: top;
}
.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}
.button {
  min-height: 50px;
  padding: 0 25px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  transition: 0.25s;
}
.button-primary {
  background: var(--teal);
  color: #031112;
}
.button-primary:hover {
  background: white;
  transform: translateY(-2px);
}
.button-ghost {
  border-color: rgba(255, 255, 255, 0.4);
}
.button-ghost:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.08);
}
.hero-index {
  position: absolute;
  z-index: 2;
  right: 4vw;
  bottom: 7vh;
  margin: 0;
  color: rgba(255, 255, 255, 0.34);
  font-family: Impact, sans-serif;
  font-size: 17px;
  letter-spacing: 0.15em;
  line-height: 0.82;
  text-align: right;
}
.hero-index span {
  font-size: 78px;
  letter-spacing: -0.04em;
}
.art-credit {
  position: absolute;
  z-index: 3;
  right: 22px;
  bottom: 18px;
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font:
    700 8px Arial,
    sans-serif;
  letter-spacing: 0.18em;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.8);
}

/* ==================== トップ：フォーマット選択 ==================== */
.home-chooser {
  padding: 100px 0 120px;
}
.format-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
}
.format-card {
  position: relative;
  min-height: 430px;
  padding: 46px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0c1112;
  transition: 0.3s;
}
.format-card::before {
  content: "";
  position: absolute;
  width: 410px;
  height: 410px;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.17;
  right: -110px;
  top: -140px;
  box-shadow: 0 0 90px currentColor;
}
.format-card.legacy {
  color: var(--teal);
}
.format-card.vintage {
  color: var(--blue);
}
.format-card:hover {
  transform: translateY(-8px);
  border-color: currentColor;
}
.format-no {
  position: absolute;
  right: 34px;
  top: 26px;
  font-family: Impact, sans-serif;
  font-size: 72px;
  opacity: 0.09;
}
.format-card > small {
  color: currentColor;
  font-weight: 900;
  letter-spacing: 0.25em;
}
.format-card h3 {
  margin: 18px 0 58px;
  color: var(--paper);
  font-family:
    Arial Narrow,
    Impact,
    sans-serif;
  font-size: clamp(42px, 5vw, 68px);
  letter-spacing: -0.03em;
  line-height: 0.86;
}
.format-card dl {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}
.format-card dl div {
  padding: 18px 14px 18px 0;
}
.format-card dl div + div {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}
.format-card dt {
  margin-bottom: 5px;
  color: #747b7a;
  font-size: 10px;
}
.format-card dd {
  margin: 0;
  color: white;
  font-size: 16px;
  font-weight: 800;
}
.format-link {
  position: absolute;
  left: 46px;
  bottom: 36px;
  color: var(--paper);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.format-link b {
  margin-left: 8px;
  color: currentColor;
}

/* ==================== 下層画面：共通ヒーロー ==================== */
.page-hero {
  min-height: 330px;
  padding: 80px max(24px, calc((100% - var(--max)) / 2));
  display: flex;
  align-items: end;
  justify-content: space-between;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 40%, rgba(155, 197, 118, 0.13), transparent 36%),
    linear-gradient(135deg, #112219, #07110b);
}
.page-hero-about {
  background:
    linear-gradient(90deg, rgba(6, 19, 11, 0.96), rgba(6, 19, 11, 0.74) 55%, rgba(6, 19, 11, 0.35)),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp") center
      48% / cover no-repeat;
}
.page-hero h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(38px, 6vw, 78px);
  letter-spacing: -0.06em;
  line-height: 1.05;
}
.page-hero p:last-child {
  max-width: 640px;
  color: #b5b9b7;
}
.page-number {
  align-self: center;
  color: rgba(255, 255, 255, 0.05);
  font-family: Impact, sans-serif;
  font-size: 160px;
  line-height: 1;
}
/* ==================== イベント概要 ==================== */
.about-layout {
  padding: 100px 0;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 100px;
}
.lead-copy > p {
  margin: 0 0 28px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(19px, 2.1vw, 28px);
  line-height: 1.9;
}
.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding-bottom: 6px;
  border-bottom: 1px solid currentColor;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}
.stat-stack {
  display: grid;
  gap: 12px;
}
.stat-stack div {
  min-height: 180px;
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  background: var(--ink-soft);
  border: 1px solid var(--line);
}
.stat-stack span {
  grid-column: 1/-1;
  align-self: start;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}
.stat-stack b {
  color: var(--teal);
  font:
    84px/0.8 Impact,
    sans-serif;
}
.stat-stack small {
  color: #6d7472;
  letter-spacing: 0.15em;
}
.feature-strip {
  margin-bottom: 110px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
}
.feature-strip div {
  padding: 38px;
}
.feature-strip div + div {
  border-left: 1px solid var(--line);
}
.feature-strip b {
  margin-right: 14px;
  color: var(--teal);
  font:
    50px/1 Impact,
    sans-serif;
}
.feature-strip span {
  font:
    700 11px Arial,
    sans-serif;
  letter-spacing: 0.12em;
}
.feature-strip p {
  color: var(--muted);
  font-size: 13px;
}

/* ==================== Legacy・Vintage共通 ==================== */
.event-hero {
  position: relative;
  min-height: 470px;
  padding: 70px max(24px, calc((100% - var(--max)) / 2));
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  overflow: hidden;
  background:
    linear-gradient(
      90deg,
      rgba(5, 19, 10, 0.96) 0%,
      rgba(5, 19, 10, 0.75) 48%,
      rgba(5, 19, 10, 0.22) 86%
    ),
    linear-gradient(0deg, rgba(5, 19, 10, 0.72), transparent 55%),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp") center
      48% / cover no-repeat;
}
.event-vintage .event-hero {
  background:
    linear-gradient(
      90deg,
      rgba(4, 21, 36, 0.95) 0%,
      rgba(6, 31, 52, 0.68) 50%,
      rgba(6, 31, 52, 0.18) 88%
    ),
    linear-gradient(0deg, rgba(4, 20, 34, 0.66), transparent 58%),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/treasure-cruise.webp") center 52% /
      cover no-repeat;
}
.event-title-block h1 {
  margin: 0;
  font:
    clamp(62px, 9vw, 126px) / 0.75 Arial Narrow,
    Impact,
    sans-serif;
  letter-spacing: -0.04em;
}
.event-title-block h1 span {
  font-size: 0.45em;
  letter-spacing: 0.02em;
}
.event-title-block > p:last-child {
  margin-top: 28px;
  color: #727977;
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.22em;
}
.event-date {
  display: grid;
  gap: 4px;
  text-align: right;
}
.event-date small {
  margin-bottom: 10px;
  color: var(--teal);
  font:
    800 10px Arial,
    sans-serif;
  letter-spacing: 0.25em;
}
.event-vintage .event-date small {
  color: var(--blue);
}
.event-vintage .kicker {
  color: var(--blue);
}
.event-date b {
  font:
    54px/0.9 Impact,
    sans-serif;
}
.event-date sup {
  margin-left: 5px;
  color: var(--teal);
  font:
    700 9px Arial,
    sans-serif;
  letter-spacing: 0.15em;
}
.event-vintage .event-date sup {
  color: var(--blue);
}
.event-date i {
  color: #59605e;
  font-style: normal;
}
.event-content {
  padding: 0 0 120px;
}
.event-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-top: 0;
}
.event-summary div {
  padding: 27px 30px;
}
.event-summary div + div {
  border-left: 1px solid var(--line);
}
.event-summary small {
  display: block;
  margin-bottom: 10px;
  color: #6f7674;
  font:
    800 9px Arial,
    sans-serif;
  letter-spacing: 0.22em;
}
.event-summary strong {
  font-size: 22px;
}
.notice {
  margin: 34px 0 70px;
  display: flex;
  align-items: stretch;
  border: 1px solid rgba(104, 215, 220, 0.25);
  background: rgba(104, 215, 220, 0.06);
}
.event-vintage .notice {
  border-color: rgba(107, 184, 239, 0.32);
  background: rgba(107, 184, 239, 0.07);
}
.notice span {
  padding: 20px;
  display: grid;
  place-items: center;
  background: var(--teal);
  color: #031112;
  font:
    900 10px Arial,
    sans-serif;
  letter-spacing: 0.12em;
}
.event-vintage .notice span {
  background: var(--blue);
  color: #03131f;
}
.notice p {
  margin: 0;
  padding: 20px 26px;
  font-size: 13px;
}
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 60px;
  align-items: start;
}
.detail-main .section-heading {
  margin-bottom: 36px;
}
.accordion-group {
  border-top: 1px solid var(--line);
}
.accordion-group details {
  border-bottom: 1px solid var(--line);
}
.accordion-group summary {
  min-height: 78px;
  padding: 0 22px 0 0;
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 800;
}
.accordion-group summary::-webkit-details-marker {
  display: none;
}
.accordion-group summary span {
  color: var(--teal);
  font:
    11px Arial,
    sans-serif;
  letter-spacing: 0.12em;
}
.event-vintage .accordion-group summary span {
  color: var(--blue);
}
.accordion-group summary::after {
  content: "+";
  margin-left: auto;
  color: var(--teal);
  font:
    28px/1 Arial,
    sans-serif;
  transition: 0.2s;
}
.event-vintage .accordion-group summary::after {
  color: var(--blue);
}
.accordion-group details[open] summary::after {
  transform: rotate(45deg);
}
.detail-body {
  padding: 4px 42px 38px;
  color: #c2c6c4;
  font-size: 14px;
  line-height: 1.9;
}
.detail-body h3 {
  color: white;
}
.detail-body ul {
  padding-left: 20px;
}
.pending {
  padding: 10px 13px;
  border-left: 2px solid var(--orange);
  background: rgba(238, 106, 44, 0.08);
  color: #f1a47f;
}
.promo-grid,
.deadline-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}
.promo-grid > div,
.deadline-grid > div {
  padding: 24px;
  background: #111617;
  border: 1px solid var(--line);
}
.promo-grid small,
.deadline-grid small {
  color: var(--teal);
  font:
    800 9px Arial,
    sans-serif;
  letter-spacing: 0.2em;
}
.event-vintage .promo-grid small,
.event-vintage .deadline-grid small {
  color: var(--blue);
}
.promo-grid h3 {
  margin: 12px 0 2px;
}
.promo-grid p,
.deadline-grid p {
  margin: 0;
  color: #7f8684;
  font-size: 12px;
}
.card-prize-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 8px 0 38px;
}
.prize-card {
  position: relative;
  margin: 0;
  padding: 24px;
  overflow: hidden;
  background: linear-gradient(145deg, #132219, #0b130e);
  border: 1px solid rgba(155, 197, 118, 0.3);
}
.event-vintage .prize-card {
  background: linear-gradient(145deg, #0c2131, #08131d);
  border-color: rgba(107, 184, 239, 0.32);
}
.prize-tier {
  position: relative;
  z-index: 3;
  display: inline-flex;
  margin-bottom: 17px;
  padding: 6px 9px;
  background: var(--teal);
  color: #07110b;
  font:
    900 9px/1 Arial,
    sans-serif;
  letter-spacing: 0.13em;
}
.event-vintage .prize-tier {
  background: var(--blue);
  color: #061521;
}
.card-visual {
  position: relative;
  width: min(100%, 260px);
  margin: 0 auto;
  overflow: hidden;
  border-radius: 4.7% / 3.35%;
  filter: drop-shadow(0 14px 16px rgba(0, 0, 0, 0.45));
  transform: translateZ(0);
}
.card-visual img {
  display: block;
  width: 100%;
  height: auto;
}
.is-foil .card-visual img {
  filter: saturate(1.08) contrast(1.025);
}
.is-foil .card-visual::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    118deg,
    transparent 12%,
    rgba(255, 80, 175, 0.1) 27%,
    rgba(115, 245, 255, 0.36) 42%,
    rgba(255, 240, 115, 0.25) 55%,
    rgba(163, 105, 255, 0.28) 69%,
    transparent 86%
  );
  background-size: 240% 100%;
  /* 虹色の中央部分だけを表示し、背景の繰り返し端を出さない。 */
  background-repeat: no-repeat;
  background-position: 50% 0;
  mix-blend-mode: color-dodge;
  opacity: 0.78;
  animation: foilSweep 5.5s ease-in-out infinite alternate;
}
.is-foil .card-visual::after {
  content: "";
  position: absolute;
  z-index: 2;
  /* 移動しても光の層の端がカード内に入らない大きさ。 */
  inset: -60%;
  pointer-events: none;
  background: repeating-linear-gradient(
    112deg,
    transparent 0 12px,
    rgba(255, 255, 255, 0.13) 13px,
    transparent 15px 30px
  );
  mix-blend-mode: soft-light;
  opacity: 0.55;
  transform: translateX(-16%);
  animation: foilLines 7s ease-in-out infinite alternate;
}
.prize-card figcaption {
  margin-top: 20px;
  text-align: center;
}
.prize-card figcaption h3 {
  margin: 0 0 3px;
  color: white;
  font-size: 16px;
}
.prize-card figcaption p {
  margin: 0;
  color: #8f9b92;
  font:
    11px/1.5 Arial,
    sans-serif;
}
.event-vintage .prize-card figcaption p {
  color: #8ca9ba;
}
@keyframes foilSweep {
  from {
    background-position: 65% 0;
  }
  to {
    background-position: 35% 0;
  }
}
@keyframes foilLines {
  from {
    transform: translateX(-16%);
  }
  to {
    transform: translateX(16%);
  }
}
.deadline-grid b {
  display: block;
  margin: 10px 0 4px;
  color: white;
  font:
    22px Arial,
    sans-serif;
}
.rank-list {
  padding: 0 !important;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  list-style: none;
}
.rank-list li {
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  background: #0c1011;
}
.rank-list span {
  color: var(--teal);
  font-family: Arial, sans-serif;
}
.event-vintage .rank-list span {
  color: var(--blue);
}
.steps ol {
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  position: relative;
  padding-left: 50px;
  counter-increment: step;
}
.steps li::before {
  content: counter(step, "decimal-leading-zero");
  position: absolute;
  left: 0;
  color: var(--teal);
  font:
    22px Impact,
    sans-serif;
}
.event-vintage .steps li::before {
  color: var(--blue);
}
.steps p {
  margin-top: 4px;
}
.event-aside {
  position: sticky;
  top: calc(var(--header) + 26px);
  padding: 30px;
  background: #121718;
  border-top: 3px solid var(--teal);
}
.event-vintage .event-aside {
  border-color: var(--blue);
  background: #0a1822;
}
.event-aside p {
  margin: 0 0 16px;
  color: #6f7674;
  font:
    800 9px Arial,
    sans-serif;
  letter-spacing: 0.2em;
}
.event-aside strong {
  display: block;
  margin-bottom: 10px;
  font-size: 30px;
}
.event-aside span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}
.event-aside button {
  width: 100%;
  margin: 25px 0 20px;
  padding: 15px;
  border: 0;
  background: #303536;
  color: #717675;
  font-weight: 800;
  cursor: not-allowed;
}
.event-aside a {
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
}
.event-vintage .event-aside a {
  color: var(--blue);
}

/* ==================== FAQ ==================== */
.faq-layout {
  padding: 80px 0 120px;
}
.faq-toolbar {
  margin-bottom: 34px;
}
.faq-toolbar label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.faq-toolbar > div {
  position: relative;
  max-width: 620px;
}
.faq-toolbar input {
  width: 100%;
  padding: 18px 54px 18px 20px;
  border: 1px solid var(--line);
  outline: none;
  background: #101516;
  color: white;
}
.faq-toolbar input:focus {
  border-color: var(--teal);
}
.faq-toolbar > div span {
  position: absolute;
  right: 20px;
  top: 12px;
  color: var(--teal);
  font-size: 27px;
}
.faq-toolbar > p {
  color: #69706e;
  font-size: 11px;
}
.faq-list {
  display: grid;
  gap: 8px;
}
.faq-item {
  background: #101415;
  border: 1px solid var(--line);
}
.faq-item summary {
  padding: 23px 64px 23px 24px;
  position: relative;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  line-height: 1.6;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 18px;
  color: var(--teal);
  font-size: 26px;
  transition: 0.2s;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 64px 26px 24px;
  color: #afb4b2;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-line;
}
.faq-answer a {
  color: var(--teal);
  text-decoration: underline;
}
.no-results {
  padding: 40px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
}

/* ==================== アクセス・Google Maps埋め込み ==================== */
.access-layout {
  padding: 90px 0 120px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}
.map-embed-slot {
  position: relative;
  min-width: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid rgba(113, 180, 152, 0.34);
  background: #0b1613;
}
.map-embed-slot iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}
.map-embed-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  padding: 40px;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(circle at 50% 46%, rgba(57, 124, 96, 0.24), transparent 38%),
    linear-gradient(rgba(119, 167, 146, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(119, 167, 146, 0.07) 1px, transparent 1px);
  background-size:
    auto,
    48px 48px,
    48px 48px;
}
.map-embed-placeholder::before,
.map-embed-placeholder::after {
  content: "";
  position: absolute;
  width: 70%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(118, 190, 159, 0.24), transparent);
  transform: rotate(-22deg);
}
.map-embed-placeholder::after {
  transform: rotate(31deg);
}
.map-embed-icon {
  position: relative;
  z-index: 1;
  width: 46px;
  height: 58px;
  margin-bottom: 20px;
  border: 1px solid rgba(123, 214, 174, 0.64);
  border-radius: 50% 50% 50% 8px;
  transform: rotate(-45deg);
}
.map-embed-icon i {
  position: absolute;
  width: 13px;
  height: 13px;
  left: 50%;
  top: 50%;
  border: 2px solid var(--teal);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.map-embed-placeholder small,
.map-embed-placeholder strong,
.map-embed-placeholder p {
  position: relative;
  z-index: 1;
}
.map-embed-placeholder small {
  color: var(--teal);
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.22em;
}
.map-embed-placeholder strong {
  margin-top: 12px;
  color: #f3f5f2;
  font-size: clamp(20px, 2.3vw, 30px);
  letter-spacing: 0.05em;
}
.map-embed-placeholder p {
  margin: 10px 0 0;
  color: #7f8c87;
  font-size: 12px;
}
.access-info h2 {
  margin: 0 0 28px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.25;
}
.address {
  color: #aab0ae;
  line-height: 1.8;
}
.route-list {
  margin: 32px 0;
  border-block: 1px solid var(--line);
}
.route-list div {
  padding: 20px 0;
  display: flex;
  align-items: center;
  gap: 18px;
}
.route-list div + div {
  border-top: 1px solid var(--line);
}
.route-list span {
  color: var(--teal);
  font:
    20px Impact,
    sans-serif;
}
.route-list p,
.route-list b {
  display: block;
  margin: 0;
}
.route-list p {
  color: #b0b5b3;
}
.route-list b {
  margin-bottom: 3px;
  color: white;
}
.access-note {
  color: #717876;
  font-size: 11px;
  line-height: 1.8;
}
.access-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 22px;
}

/* ==================== フッター・スマートフォンナビ ==================== */
.site-footer {
  min-height: 230px;
  padding: 50px max(24px, calc((100% - var(--max)) / 2));
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  background: #050708;
}
.site-footer > p {
  justify-self: end;
  color: #747b79;
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.18em;
}
.site-footer > small {
  grid-column: 1/-1;
  align-self: end;
  color: #3c4140;
  font-size: 9px;
}
.mobile-nav {
  display: none;
}

/* ==================== レスポンシブ：タブレット ==================== */
@media (max-width: 1020px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }
  .site-nav {
    position: fixed;
    inset: calc(28px + var(--header)) 0 0;
    width: 100vw;
    padding: 50px 28px 120px;
    display: none;
    align-content: start;
    gap: 0;
    background: rgba(7, 10, 11, 0.98);
  }
  .menu-open .site-nav {
    display: grid;
  }
  .site-nav a {
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
    font-size: 20px;
  }
  .header-cta {
    display: none;
  }
  .menu-toggle {
    justify-self: end;
    width: 46px;
    height: 46px;
    padding: 12px;
    display: grid;
    align-content: center;
    gap: 5px;
    border: 1px solid var(--line);
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) {
    height: 1px;
    background: white;
    transition: 0.2s;
  }
  .menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .event-aside {
    position: static;
  }
  .about-layout {
    gap: 50px;
  }
}

/* ==================== レスポンシブ：スマートフォン ==================== */
@media (max-width: 760px) {
  :root {
    --header: 68px;
  }
  body {
    padding-bottom: 68px;
  }
  .prototype-bar {
    min-height: 25px;
    padding-inline: 10px;
  }
  .prototype-bar p {
    display: none;
  }
  .brand-logo {
    width: 182px;
  }
  .content-shell {
    width: min(100% - 32px, var(--max));
  }
  .hero {
    min-height: calc(100vh - 93px);
  }
  .hero::after {
    background:
      linear-gradient(90deg, rgba(4, 8, 10, 0.84), rgba(4, 8, 10, 0.42)),
      linear-gradient(0deg, #070a0b 0%, transparent 50%);
  }
  .hero-backdrop {
    background-position: 58% center;
  }
  .hero-content {
    width: calc(100% - 32px);
    padding: 54px 0 72px;
  }
  .hero-logo-title {
    width: min(100%, 560px);
  }
  .hero-year {
    margin-top: 15px;
    font-size: 13px;
    letter-spacing: 0.35em;
  }
  .hero-copy {
    margin-top: 28px;
    font-size: 16px;
  }
  .hero-meta {
    grid-template-columns: 1fr;
  }
  .hero-meta > div {
    padding: 15px 0;
  }
  .hero-meta > div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .hero-meta b {
    font-size: 17px;
  }
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .button {
    padding-inline: 12px;
    font-size: 10px;
  }
  .hero-index {
    display: none;
  }
  .home-chooser {
    padding: 70px 0 80px;
  }
  .format-grid {
    grid-template-columns: 1fr;
  }
  .format-card {
    min-height: 390px;
    padding: 32px;
  }
  .format-card h3 {
    font-size: 53px;
  }
  .format-link {
    left: 32px;
  }
  .page-hero {
    min-height: 260px;
    padding: 54px 18px;
    align-items: end;
  }
  .page-number {
    display: none;
  }
  .page-hero h1 {
    font-size: 38px;
  }
  .about-layout,
  .access-layout {
    padding: 65px 0 80px;
    grid-template-columns: 1fr;
    gap: 45px;
  }
  .lead-copy > p {
    font-size: 18px;
  }
  .feature-strip {
    margin-bottom: 80px;
    grid-template-columns: 1fr;
  }
  .feature-strip div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .event-hero {
    min-height: 460px;
    padding: 54px 18px 42px;
    display: grid;
    align-content: end;
    background-position: 58% center;
  }
  .event-vintage .event-hero {
    background-position: 42% center;
  }
  .event-title-block h1 {
    font-size: 58px;
  }
  .event-date {
    margin-top: 18px;
    display: grid;
    grid-template-columns: auto auto auto;
    align-items: end;
    justify-content: start;
    gap: 5px 12px;
    text-align: left;
  }
  .event-date small {
    position: static;
    grid-column: 1 / -1;
    margin: 0;
  }
  .event-date b {
    font-size: 35px;
  }
  .event-date i {
    padding-bottom: 2px;
  }
  .event-summary {
    grid-template-columns: 1fr 1fr;
  }
  .event-summary div:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .event-summary div:nth-child(4) {
    border-top: 1px solid var(--line);
  }
  .event-summary div {
    padding: 20px;
  }
  .event-summary strong {
    font-size: 17px;
  }
  .notice {
    margin-bottom: 55px;
    align-items: stretch;
  }
  .notice p {
    padding: 16px;
  }
  .promo-grid,
  .deadline-grid,
  .rank-list {
    grid-template-columns: 1fr;
  }
  .card-prize-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .prize-card {
    padding: 10px;
  }
  .prize-tier {
    margin-bottom: 10px;
    padding: 5px 6px;
    font-size: 7px;
    letter-spacing: 0.08em;
  }
  .prize-card figcaption {
    margin-top: 12px;
  }
  .prize-card figcaption h3 {
    font-size: 12px;
  }
  .prize-card figcaption p {
    font-size: 9px;
  }
  .detail-body {
    padding: 0 0 30px;
  }
  .accordion-group summary {
    padding-right: 4px;
  }
  .faq-layout {
    padding: 55px 0 90px;
  }
  .faq-item summary {
    padding: 20px 52px 20px 18px;
    font-size: 14px;
  }
  .faq-answer {
    padding: 0 18px 22px;
    font-size: 13px;
  }
  .map-embed-slot {
    aspect-ratio: 4 / 3;
  }
  .access-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .site-footer {
    min-height: 260px;
    padding: 40px 18px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 30px;
  }
  .site-footer > p {
    justify-self: auto;
  }
  .mobile-nav {
    position: fixed;
    z-index: 60;
    left: 0;
    right: 0;
    bottom: 0;
    height: 68px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    border-top: 1px solid #303536;
    background: rgba(8, 11, 12, 0.96);
    backdrop-filter: blur(16px);
  }
  .mobile-nav a {
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 3px;
    color: #777e7c;
    font:
      700 8px Arial,
      sans-serif;
    letter-spacing: 0.05em;
  }
  .mobile-nav a span {
    color: #aeb3b1;
    font-size: 17px;
  }
  .mobile-nav a.is-active,
  .mobile-nav a.is-active span {
    color: var(--teal);
  }
  body[data-route="vintage"] .mobile-nav a.is-active,
  body[data-route="vintage"] .mobile-nav a.is-active span {
    color: var(--blue);
  }
}

/* ==================== アニメーション軽減設定 ==================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==================== 02. ARENA THEME ==================== */
/* ========================================================
   PATTERN B / ARENA
   既存 styles.css の共通機能に重ねる別案のデザイン。
   配色の変更は :root、トップ画面の変更は arena-* を編集。
   ======================================================== */

:root {
  --ink: #06120d;
  --ink-soft: #0d2118;
  --paper: #f4f4e9;
  --teal: #b6dc87;
  --teal-deep: #285c3d;
  --blue: #6bb8ef;
  --line: rgba(208, 226, 213, 0.2);
  --max: 1280px;
  --header: 88px;
}

/* 共通：角のある輪郭・大きな英字・細い情報罫線 */
body {
  background: var(--ink);
}

.prototype-bar {
  min-height: 25px;
  background: #14291e;
  color: #c3d4c7;
  font-size: 9px;
}

.site-header {
  background: rgba(5, 16, 11, 0.97);
  border-bottom: 1px solid var(--line);
  padding-inline: 4vw;
}

.brand-logo {
  width: 210px;
}

.site-nav a {
  font-size: 12px;
  letter-spacing: 0.08em;
}

.header-cta,
.button-primary {
  background: var(--teal);
  color: #07120b;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.header-cta:hover,
.button-primary:hover {
  background: #d0ecaf;
}

.view.is-active {
  animation: arena-view-in 0.35s ease-out;
}

.button,
.header-cta,
.arena-format,
.arena-shortcuts a {
  transition:
    background 0.2s,
    color 0.2s,
    border-color 0.2s;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}

/* 本戦の参加案内から、参加パッケージへ移動 */
.event-aside .event-package-link {
  display: block;
  margin-bottom: 18px;
  padding: 14px 12px;
  border: 1px solid currentColor;
  font-size: 13px;
  text-align: center;
  line-height: 1.6;
}
.event-aside .event-package-link:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* 追加画面：参加パッケージとサイドイベント */
.site-nav {
  gap: 16px;
}
.site-header {
  grid-template-columns: auto 1fr auto;
  gap: 22px;
}
.site-nav {
  justify-content: center;
}
.supplemental-content {
  padding-block: 46px 90px;
  line-height: 1.9;
}
.supplemental-content > h2 {
  margin-top: 48px;
}
.draft-notice {
  padding: 22px 26px;
  border-left: 3px solid var(--teal);
  background: var(--ink-soft);
}
.draft-notice strong {
  color: var(--teal);
}
.draft-notice p {
  margin: 8px 0 0;
  font-size: 14px;
}
.section-jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-block: 24px 32px;
  font-size: 13px;
  color: var(--teal);
}
.section-jumps a:hover {
  text-decoration: underline;
}
.package-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 18px;
}
.package-card,
.side-event-card,
.side-hours article {
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--ink-soft);
}
.package-card summary,
.side-event-card summary {
  cursor: pointer;
  padding: 24px;
}
.package-card summary::marker,
.side-event-card summary::marker {
  color: var(--teal);
}
.package-card summary > span {
  font-size: 18px;
  font-weight: 700;
}
.package-card summary > strong {
  display: block;
  margin-top: 12px;
  color: var(--teal);
  font:
    600 32px Arial,
    sans-serif;
}
.package-card summary small {
  margin-left: 10px;
  font:
    400 12px "Yu Gothic",
    sans-serif;
  color: var(--paper);
}
.package-body,
.side-event-body {
  padding: 0 24px 24px;
  font-size: 14px;
}
.package-body ul,
.supplemental-notes ul,
.side-event-body ol {
  padding-left: 1.4em;
}
.package-body li,
.supplemental-notes li,
.side-event-body li {
  margin-block: 8px;
}
.pending-copy {
  color: #c0c9bf;
  font-size: 13px;
}
.supplemental-notes {
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.side-hours,
.side-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.side-hours article {
  padding: 24px;
}
.side-hours h3 {
  margin: 0 0 16px;
  color: var(--teal);
  font:
    600 32px Arial,
    sans-serif;
}
.side-hours h3 small {
  font:
    400 13px "Yu Gothic",
    sans-serif;
}
.side-hours dl,
.side-event-body dl {
  margin: 0;
}
.side-hours dl > div,
.side-event-body dl > div {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding-block: 9px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.side-hours dd,
.side-event-body dd {
  margin: 0;
  font-weight: 700;
}
.side-steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0;
  list-style: none;
  counter-reset: side-step;
}
.side-steps li {
  counter-increment: side-step;
  padding: 26px;
  background: var(--side-accent, #ffac70);
  color: #28180e;
  border: 1px solid rgba(40, 24, 14, 0.15);
}
.side-steps li::before {
  content: counter(side-step, decimal-leading-zero);
  display: block;
  margin-bottom: 18px;
  color: #28180e;
  font:
    700 52px/1 Arial,
    sans-serif;
  letter-spacing: -0.04em;
}
.side-steps strong {
  display: block;
  font-size: 20px;
  line-height: 1.5;
  font-weight: 800;
}
.side-steps p {
  margin: 12px 0 0;
  color: #382216;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.9;
}
.side-event-list {
  display: grid;
  gap: 16px;
}
.side-event-card summary > span {
  display: inline-block;
  width: calc(100% - 160px);
  vertical-align: middle;
  font-size: 18px;
  font-weight: 700;
}
.side-event-card summary small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}
.side-event-card summary b {
  display: inline-block;
  color: var(--teal);
  font-size: 15px;
}
.side-event-vintage {
  background: #0b2030;
}
.side-event-vintage summary b,
.side-event-vintage summary::marker {
  color: var(--blue);
}
@media (min-width: 1021px) and (max-width: 1350px) {
  .site-header {
    padding-inline: 24px;
    gap: 16px;
  }
  .site-header .brand-logo {
    width: 165px;
  }
  .site-nav {
    gap: 12px;
  }
  .site-nav a {
    font-size: 11px;
  }
  .header-cta {
    padding-inline: 16px;
  }
}
@media (max-width: 760px) {
  .package-grid,
  .side-hours,
  .side-steps {
    grid-template-columns: 1fr;
  }
  .package-card summary,
  .side-event-card summary {
    padding: 20px;
  }
  .package-body,
  .side-event-body {
    padding: 0 20px 20px;
  }
  .side-event-card summary > span {
    width: calc(100% - 24px);
    font-size: 16px;
  }
  .side-event-card summary b {
    display: block;
    margin: 10px 0 0 20px;
  }
}

/* サイドイベント：オレンジの画面テーマ（大会カードの緑・青は維持） */
[data-view="side-events"] {
  --side-accent: #ffac70;
}
body[data-route="side-events"] {
  background: #160f0a;
}
body[data-route="side-events"] .site-header {
  background: rgba(22, 15, 10, 0.97);
}
body[data-route="side-events"] .header-cta {
  background: #ffac70;
  color: #251409;
}
[data-view="side-events"] .page-hero {
  background-color: #362013;
  background-image: repeating-linear-gradient(
    120deg,
    transparent 0 80px,
    rgba(255, 172, 112, 0.06) 80px 81px
  );
}
[data-view="side-events"] .kicker,
[data-view="side-events"] .draft-notice strong,
[data-view="side-events"] .section-jumps,
[data-view="side-events"] .side-hours h3 {
  color: var(--side-accent);
}
[data-view="side-events"] .draft-notice {
  background: #24190f;
  border-left-color: var(--side-accent);
}
[data-view="side-events"] .side-hours {
  grid-template-columns: 1fr;
}
[data-view="side-events"] .side-hours article {
  background: #24190f;
  border-color: rgba(255, 172, 112, 0.25);
}
.side-day-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 36px;
}
.side-day-switch button {
  padding: 18px 24px;
  border: 1px solid rgba(255, 172, 112, 0.4);
  background: #21180f;
  color: #ffccaa;
  cursor: pointer;
  font-weight: 700;
  font-size: 18px;
}
.side-day-switch button span {
  margin-left: 12px;
  font-size: 14px;
}
.side-day-switch button[aria-pressed="true"] {
  background: var(--side-accent);
  color: #251409;
  border-color: var(--side-accent);
}
.side-day-switch button:hover {
  border-color: #ffe1cb;
}
.side-day-status {
  font-size: 13px;
  color: #e2be9f;
}
#side-day-content > h2 {
  margin-top: 38px;
}
.side-event-orange {
  background: #2d1b10;
  border-color: rgba(255, 172, 112, 0.3);
}
.side-event-orange summary > span,
.side-event-orange summary b,
.side-event-orange summary::marker {
  color: var(--side-accent);
}
body[data-route="side-events"] .site-nav a.is-active::after {
  background: #ffac70;
}
body[data-route="side-events"] :is(a, button, summary):focus-visible {
  outline-color: #ffac70;
}
/* 共通のダミー画像。実画像は各 img の src を差し替えるだけ。 */
.package-card summary {
  list-style: none;
}
.package-card summary::-webkit-details-marker {
  display: none;
}
.package-card summary > span::before {
  content: "＋";
  margin-right: 8px;
  color: var(--teal);
}
.package-card[open] summary > span::before {
  content: "−";
}
.package-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  margin-bottom: 20px;
  background: #08170f;
  border: 1px solid var(--line);
}
/* 非表示の日のカードは、既存の display 指定より優先して隠す。 */
[data-side-days][hidden] {
  display: none !important;
}
@media (max-width: 760px) {
  .side-day-switch button {
    padding: 14px 10px;
    font-size: 16px;
  }
  .side-day-switch button span {
    display: block;
    margin: 4px 0 0;
    font-size: 12px;
  }
}

/* トップ：アートを全面に敷いた大会ポスター */
.arena-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #152e20;
}

.arena-art {
  position: absolute;
  z-index: -2;
  inset: 0;
  background-image:
    linear-gradient(
      90deg,
      rgba(3, 18, 10, 0.94) 0%,
      rgba(4, 19, 11, 0.78) 38%,
      rgba(4, 17, 10, 0.18) 72%
    ),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp");
  background-size: cover;
  background-position:
    center,
    60% 52%;
}

.arena-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(4, 17, 10, 0.8), transparent 35%),
    repeating-linear-gradient(115deg, transparent 0 150px, rgba(238, 246, 222, 0.03) 151px 152px);
  pointer-events: none;
}

.arena-topline,
.arena-bottomline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 4vw;
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.15em;
  color: #c8d2c6;
}

.arena-topline {
  border-bottom: 1px solid rgba(219, 235, 210, 0.17);
}

.arena-bottomline {
  border-top: 1px solid rgba(219, 235, 210, 0.17);
  font-size: 9px;
}

.arena-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: end;
  gap: 60px;
  min-height: 595px;
  padding: 48px 4vw 52px;
}

.arena-label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 30px;
  color: var(--teal);
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.12em;
}

.arena-label > span {
  width: 7px;
  height: 7px;
  background: var(--teal);
  transform: rotate(45deg);
}

.arena-logo {
  margin: 0 0 32px;
  max-width: 580px;
}

.arena-logo img {
  display: block;
  width: 100%;
  height: auto;
}

.arena-slogan {
  margin: 0;
  font-size: clamp(34px, 4.3vw, 66px);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.18;
}

.arena-slogan em {
  color: var(--teal);
  font-style: normal;
}

.arena-description {
  margin: 20px 0 28px;
  font-size: 13px;
  line-height: 1.85;
  color: #c0cbbb;
}

.arena-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 32px;
}

.arena-actions .button {
  min-height: 54px;
  min-width: 236px;
  justify-content: space-between;
  gap: 30px;
}

.arena-actions .button span {
  font-size: 23px;
}

.arena-text-link {
  font-size: 12px;
  font-weight: 700;
}

.arena-text-link span {
  margin-left: 20px;
  color: var(--teal);
}

.arena-date {
  padding: 26px 28px 22px;
  background: rgba(5, 24, 14, 0.63);
  border: 1px solid rgba(204, 229, 192, 0.4);
  backdrop-filter: blur(8px);
  box-shadow: 10px 10px 0 rgba(10, 32, 18, 0.45);
}

.arena-year {
  display: block;
  margin-bottom: 12px;
  color: var(--teal);
  font:
    700 17px Arial,
    sans-serif;
  letter-spacing: 0.25em;
}

.arena-date > strong {
  display: block;
  /* 左のコピーより一段小さく、読みやすい太さにする。 */
  font:
    600 clamp(28px, 3.5vw, 54px) / 1.1 "Arial Narrow",
    Arial,
    sans-serif;
  letter-spacing: 0.01em;
}

.arena-date-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0 15px;
  color: var(--teal);
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.1em;
}

.arena-date-divider i {
  flex: 1;
  height: 1px;
  background: rgba(214, 230, 200, 0.4);
}

.arena-date p {
  margin: 10px 0 0;
  font:
    700 10px/2 Arial,
    sans-serif;
  letter-spacing: 0.1em;
}

.arena-date p b {
  font-size: 11px;
  letter-spacing: 0;
}

/* 目的別の入口：必要な画面へすぐ移動 */
.arena-shortcuts {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.arena-shortcuts a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px;
  padding: 22px 16px;
  align-items: center;
  border-right: 1px solid var(--line);
  background: #0e2318;
}

.arena-shortcuts a:last-child {
  border-right: 0;
}

.arena-shortcuts a:hover {
  background: #1c3725;
}

.arena-shortcuts b {
  font-size: 15px;
  line-height: 1.5;
}

.arena-shortcuts span {
  color: var(--teal);
  font-size: 15px;
}

/* 大会選択：アート・賞品カード・数値を一つのパネルに集約 */
.arena-lineup {
  padding-block: 65px 70px;
}

.arena-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  margin-bottom: 32px;
}

.arena-section-heading h2 {
  margin: 12px 0 0;
  font-size: clamp(30px, 3.7vw, 46px);
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.arena-section-heading > p {
  font-size: 12px;
  color: #a0afa2;
  line-height: 1.9;
}

.arena-format-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.arena-format {
  --format-accent: var(--teal);
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid #395e42;
  background: #133120;
  padding: 24px 28px 0;
}

.arena-vintage {
  --format-accent: var(--blue);
  background: #102f45;
  border-color: #36617f;
}

.arena-format:hover {
  border-color: var(--format-accent);
}

.arena-format-art {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(7, 32, 17, 0.93), rgba(7, 26, 14, 0.56)),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.8;
}

.arena-vintage .arena-format-art {
  background-image:
    linear-gradient(90deg, rgba(5, 27, 46, 0.94), rgba(5, 27, 46, 0.65)),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/treasure-cruise.webp");
}

.arena-format-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--format-accent);
  font:
    700 10px Arial,
    sans-serif;
  letter-spacing: 0.07em;
}

.arena-format-copy {
  position: relative;
  z-index: 2;
  margin-top: 66px;
  padding-bottom: 30px;
}

.arena-format-copy > small {
  display: block;
  max-width: 70%;
  color: #adbdaf;
  font:
    700 8px/1.5 Arial,
    sans-serif;
  letter-spacing: 0.06em;
}

.arena-format-copy h3 {
  margin: 9px 0 0;
  /* 大会詳細の event-title-block h1 と書体・太さ・斜体を統一。 */
  font:
    italic 400 clamp(48px, 5.2vw, 73px) / 1 "Arial Narrow",
    Impact,
    sans-serif;
  letter-spacing: -0.025em;
}

.arena-format-copy p {
  margin: 6px 0 0;
  color: var(--format-accent);
  font:
    700 12px Arial,
    sans-serif;
  letter-spacing: 0.17em;
}

.arena-format-reward {
  position: absolute;
  right: 22px;
  top: 82px;
  width: 120px;
  transform: rotate(9deg);
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.5));
}

.arena-format-reward .card-visual {
  border-radius: 8px;
}

.arena-format-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.arena-format-foot small {
  margin-bottom: 7px;
  color: #b0bcaf;
  font:
    700 8px Arial,
    sans-serif;
  letter-spacing: 0.12em;
}

.arena-format-foot b {
  font:
    700 25px Arial,
    sans-serif;
}

.arena-format-foot b span {
  margin-left: 5px;
  font-size: 12px;
}

.arena-format-arrow {
  margin-left: auto;
  color: var(--format-accent);
  font-size: 34px;
}

.arena-format-cta {
  display: flex;
  justify-content: space-between;
  margin: 0 -28px;
  padding: 15px 28px;
  background: var(--format-accent);
  color: #06130d;
  font-size: 11px;
  font-weight: 800;
}

.arena-reward-note {
  margin: 16px 0 0;
  font-size: 10px;
  color: #9ba99c;
  line-height: 1.7;
}

/* 詳細画面：情報の階層は既存案を引き継ぐ */
.page-hero,
.event-hero {
  position: relative;
}

.page-hero {
  min-height: 280px;
  background-color: #183725;
  background-image: repeating-linear-gradient(
    120deg,
    transparent 0 120px,
    rgba(206, 230, 194, 0.06) 121px 122px
  );
}

.page-hero h1 {
  font-weight: 900;
}

.event-title-block h1 {
  font-style: italic;
  font-size: clamp(64px, 9vw, 125px);
  line-height: 0.9;
}

.event-title-block h1 span {
  font-size: 0.34em;
  letter-spacing: 0.04em;
}

/* 開催日も大会概要に集約。日付欄は少し広く確保する。 */
.event-summary {
  grid-template-columns: minmax(260px, 1.8fr) repeat(4, minmax(0, 1fr));
}

.event-summary > div {
  min-width: 0;
  padding-inline: 22px;
}

.event-summary-date strong {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 6px;
  font-size: 18px;
  line-height: 1.6;
}

.event-summary-date time {
  white-space: nowrap;
}

.event-aside {
  border-top: 4px solid var(--teal);
}

.event-vintage .event-aside {
  border-top-color: var(--blue);
}

.event-vintage .event-aside button {
  background: var(--blue);
}

.site-footer {
  min-height: 170px;
  border-top: 1px solid var(--line);
}

@keyframes arena-view-in {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* タブレット */
@media (max-width: 1020px) {
  .event-summary {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .event-summary > .event-summary-date {
    grid-column: 1 / -1;
  }
  .event-summary > div:not(.event-summary-date) {
    border-top: 1px solid var(--line);
  }
  .event-summary > div:nth-child(2) {
    border-left: 0;
  }
  .arena-body {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 35px;
  }
  .arena-date {
    padding: 22px;
  }
  .arena-shortcuts a {
    padding: 20px 16px;
  }
  .arena-shortcuts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .arena-shortcuts a:nth-child(3n) {
    border-right: 0;
  }
  .arena-shortcuts a:nth-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }
  .arena-shortcuts b {
    font-size: 14px;
  }
  .arena-format-reward {
    width: 95px;
    right: 18px;
    top: 92px;
  }
  .arena-format-copy h3 {
    font-size: 52px;
  }
}

/* スマートフォン：情報を縦に並べ、追従ナビを維持 */
@media (max-width: 760px) {
  .event-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .event-summary > div:nth-child(3) {
    border-left: 1px solid var(--line);
  }
  .event-summary > div:nth-child(4) {
    border-left: 0;
  }
  .event-summary > div:nth-child(5) {
    border-left: 1px solid var(--line);
  }
  .event-summary-date strong {
    font-size: 17px;
  }
  :root {
    --header: 70px;
  }
  .site-header {
    padding-inline: 18px;
  }
  .brand-logo {
    width: 174px;
  }
  .prototype-bar p {
    font-size: 8px;
  }
  .arena-art {
    background-image:
      linear-gradient(180deg, rgba(4, 20, 11, 0.68), rgba(4, 20, 11, 0.86)),
      url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp");
    background-position:
      center,
      60% center;
  }
  .arena-topline {
    padding: 14px 18px;
    font-size: 8px;
    letter-spacing: 0.06em;
  }
  .arena-body {
    display: block;
    min-height: 0;
    padding: 32px 22px;
  }
  .arena-label {
    font-size: 8px;
    margin-bottom: 25px;
  }
  .arena-logo {
    margin-bottom: 26px;
  }
  .arena-slogan {
    font-size: 41px;
  }
  .arena-description {
    font-size: 12px;
    margin-block: 18px 23px;
  }
  .arena-actions {
    gap: 22px;
  }
  .arena-actions .button {
    min-width: 200px;
    padding-inline: 20px;
  }
  .arena-text-link {
    font-size: 11px;
  }
  .arena-text-link span {
    margin-left: 8px;
  }
  .arena-date {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 20px;
    margin-top: 30px;
    padding: 17px 20px;
  }
  .arena-year {
    grid-column: 1 / -1;
    font-size: 12px;
    margin-bottom: 8px;
  }
  .arena-date > strong {
    font-size: 34px;
    grid-row: 2;
  }
  .arena-date-divider {
    grid-row: 3;
    padding-bottom: 0;
    font-size: 8px;
  }
  .arena-date p {
    grid-column: 1 / -1;
    padding-top: 10px;
    font-size: 9px;
  }
  .arena-date p b {
    font-size: 10px;
  }
  .arena-bottomline {
    padding: 13px 18px;
    font-size: 7px;
    letter-spacing: 0.05em;
  }
  .arena-bottomline span:last-child {
    display: none;
  }
  .arena-shortcuts a {
    padding: 18px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .arena-shortcuts a:nth-child(3n) {
    border-right: 1px solid var(--line);
  }
  .arena-shortcuts a:nth-child(2n) {
    border-right: 0;
  }
  .arena-shortcuts a:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .arena-shortcuts b {
    font-size: 13px;
  }
  .arena-section-heading {
    display: block;
    margin-bottom: 26px;
  }
  .arena-section-heading h2 {
    font-size: 30px;
  }
  .arena-section-heading > p {
    margin-top: 20px;
  }
  .arena-lineup {
    padding-block: 42px 50px;
  }
  .arena-format-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .arena-format {
    padding: 21px 22px 0;
  }
  .arena-format-head {
    font-size: 8px;
  }
  .arena-format-copy {
    margin-top: 66px;
    padding-bottom: 28px;
  }
  .arena-format-copy h3 {
    font-size: 57px;
  }
  .arena-format-copy > small {
    font-size: 7px;
    max-width: 63%;
  }
  .arena-format-copy p {
    font-size: 10px;
  }
  .arena-format-reward {
    top: 83px;
    width: 98px;
  }
  .arena-format-foot {
    gap: 25px;
  }
  .arena-format-foot b {
    font-size: 23px;
  }
  .arena-format-cta {
    margin-inline: -22px;
    padding-inline: 22px;
  }
  .event-title-block h1 {
    font-size: 67px;
  }
  .page-hero {
    min-height: 240px;
  }
  .site-footer {
    min-height: 240px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .view.is-active {
    animation: none;
  }
}

/* ==================== 03. EVENT REFINEMENTS ==================== */

/* 右上の ASIA：A の後だけ字間を詰める。値を 0em に近づけると広がります。 */
.arena-topline .asia-kern-a {
  letter-spacing: -0.02em;
}

/* 開催情報の中央揃え：切り戻しは arena-date の data-align="center" を削除。 */
.arena-date[data-align="center"] {
  text-align: center;
}
.arena-date[data-align="center"] .arena-date-divider {
  justify-content: center;
}
.arena-date[data-align="center"] .arena-date-divider::before {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(214, 230, 200, 0.4);
}

.page-hero h1 {
  max-width: 100%;
}
/* 画面切替時の見出しフォーカス：読み上げの移動は維持し、装飾枠だけ消す。 */
.view h1[tabindex="-1"]:focus,
.view h1[tabindex="-1"]:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

/* モバイル下部メニュー：文字アイコンを統一した線画に置き換える。 */
.mobile-nav svg {
  display: block;
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
@media (max-width: 760px) {
  .mobile-nav {
    height: calc(68px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .mobile-nav a {
    color: #adb7ae;
    font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
    font-size: 9px;
    line-height: 1.4;
    letter-spacing: 0;
    white-space: nowrap;
  }
  body[data-route="side-events"] .mobile-nav a.is-active {
    color: #ffac70;
  }
  body {
    padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  }
}

/* スマホ・タブレット：不透明な背景のコンパクトな開閉メニュー */
@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }
  .site-header .site-nav {
    position: absolute;
    inset: auto 14px auto 14px;
    top: calc(100% + 8px);
    width: auto;
    height: auto;
    max-width: 420px;
    margin-left: auto;
    max-height: calc(100vh - var(--header) - 100px);
    max-height: calc(100dvh - var(--header) - 100px);
    padding: 8px;
    display: none;
    grid-template-columns: 1fr;
    align-content: start;
    align-items: stretch;
    justify-content: stretch;
    gap: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #0b1b12;
    border: 1px solid rgba(208, 226, 213, 0.25);
    border-radius: 8px;
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5);
  }
  .menu-open .site-header .site-nav {
    display: grid;
  }
  .site-header .site-nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 11px 14px;
    border: 0;
    border-bottom: 1px solid rgba(208, 226, 213, 0.1);
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
    letter-spacing: 0.03em;
    text-align: left;
    color: #e1e7e0;
  }
  .site-header .site-nav a:last-child {
    border-bottom: 0;
  }
  .site-header .site-nav a::after {
    display: none;
  }
  .site-header .site-nav a:hover,
  .site-header .site-nav a.is-active {
    background: rgba(182, 220, 135, 0.12);
    color: #b6dc87;
  }
  .site-header .site-nav a[href="#vintage"].is-active {
    color: #6bb8ef;
    background: rgba(107, 184, 239, 0.12);
  }
  .site-header .site-nav a[href="#side-events"].is-active {
    color: #ffac70;
    background: rgba(255, 172, 112, 0.12);
  }
}
/* Language switch: header on desktop, hamburger menu on mobile. */
.site-nav .language-link {
  color: var(--teal);
  padding-inline: 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding-block: 8px;
}
@media (min-width: 1101px) and (max-width: 1350px) {
  .site-header {
    gap: 14px;
    padding-inline: 24px;
  }
  .site-header .brand-logo {
    width: 155px;
  }
  .site-header .site-nav {
    gap: 10px;
  }
  .site-header .site-nav a {
    font-size: 11px;
  }
  .site-header .header-cta {
    padding-inline: 14px;
  }
}
@media (max-width: 1100px) {
  .site-header .site-nav .language-link {
    margin-top: 6px;
    border: 1px solid rgba(182, 220, 135, 0.35);
    color: var(--teal);
  }
}

/* Typography 2026-10-08
         情報部分は本文16px / 小見出し24px / 大見出し40px（スマホ28px）。
         切り戻し：body の data-typography="readable" を削除。
         ヒーローのコピー・大会名とナビゲーションは対象外。 */
body[data-typography="readable"] {
  --type-heading: 24px;
  --type-title: 40px;
}
body[data-typography="readable"]
  :is(
    .event-content,
    .about-layout,
    .supplemental-content,
    .faq-layout,
    .access-layout,
    .arena-shortcuts
  ) {
  font-size: var(--type-body);
  line-height: 1.8;
}
/* 入れ子の注記・数字・強調文字も親と同じサイズにする。 */
body[data-typography="readable"]
  :is(
    .event-content,
    .about-layout,
    .supplemental-content,
    .faq-layout,
    .access-layout,
    .arena-shortcuts
  )
  :where(*) {
  font-size: inherit;
}
body[data-typography="readable"]
  :is(
    .detail-main h2,
    .detail-main h3,
    .accordion-group summary,
    .faq-item summary,
    .package-card summary > span,
    .side-event-card summary > span,
    .side-steps strong,
    .side-hours h2,
    .supplemental-notes h2,
    .supplemental-notes h3,
    .event-summary strong,
    .event-aside > strong,
    .stat-stack b,
    .map-embed-placeholder strong,
    .side-day-switch button,
    .package-card summary > strong
  ) {
  font-size: var(--type-heading);
  line-height: 1.5;
}
body[data-typography="readable"] :is(.page-hero h1, .arena-section-heading h2, .access-info h2) {
  font-size: var(--type-title);
  line-height: 1.4;
  letter-spacing: 0.02em;
}
body[data-typography="readable"]
  :is(
    .page-hero > p,
    .page-hero .kicker,
    .arena-section-heading > p,
    .arena-description,
    .arena-format-copy > small,
    .arena-format-copy > p,
    .arena-format-foot b span,
    .arena-format-cta,
    .arena-reward-note,
    .arena-date p,
    .arena-date p b,
    .arena-year,
    .arena-date-divider,
    .arena-shortcuts b,
    .arena-shortcuts span,
    .side-day-switch button span,
    .package-card summary small
  ) {
  font-size: var(--type-body);
  line-height: 1.8;
}
body[data-typography="readable"]
  :is(
    .detail-body p,
    .faq-answer p,
    .package-body p,
    .side-event-body p,
    .supplemental-notes p,
    .notice p,
    .lead-copy > p,
    .side-steps p
  ) {
  line-height: 1.9;
  letter-spacing: 0.02em;
}
body[data-typography="readable"] .side-steps li::before {
  font-size: var(--type-title);
  line-height: 1.2;
}
body[data-typography="readable"] .event-aside .event-package-link {
  white-space: normal;
  line-height: 1.6;
}
body[data-typography="readable"] .prize-tier {
  white-space: normal;
  line-height: 1.5;
}
body[data-typography="readable"] .arena-format-copy > small {
  max-width: none;
  padding-right: 110px;
  letter-spacing: 0.02em;
}
@media (max-width: 760px) {
  body[data-typography="readable"] {
    --type-title: 28px;
  }
  body[data-typography="readable"] .arena-shortcuts a {
    padding-inline: 12px;
  }
  body[data-typography="readable"] .rank-list {
    grid-template-columns: 1fr;
  }
  body[data-typography="readable"] .side-event-card summary {
    flex-wrap: wrap;
    gap: 8px;
  }
}

/* TOPのシンプルMV：切り戻しは arena-hero--simple クラスを削除。 */
.arena-hero--simple .arena-body {
  grid-template-columns: minmax(0, 1fr) clamp(280px, 23vw, 320px);
  align-items: center;
  gap: clamp(24px, 3vw, 48px);
  min-height: 595px;
  padding-block: 48px;
}
.arena-hero--simple .arena-copy {
  min-width: 0;
}
.arena-hero--simple .arena-logo {
  width: 100%;
  max-width: none;
  margin: 0;
}
.arena-hero--simple .arena-date {
  align-self: center;
  margin: 0;
}
.arena-hero--simple .arena-venue {
  letter-spacing: 0;
}
.arena-hero--simple .arena-venue span {
  display: inline-block;
}
@media (max-width: 760px) {
  .arena-hero--simple .arena-body {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-content: center;
    justify-items: center;
    gap: 28px;
    min-height: 560px;
    padding: 40px 22px;
  }
  .arena-hero--simple .arena-copy {
    width: 100%;
  }
  .arena-hero--simple .arena-date {
    width: 100%;
    max-width: 440px;
    box-sizing: border-box;
  }
  .arena-hero--simple .arena-venue {
    grid-column: 1 / -1;
  }
}

/* Legacy大会詳細：賞品を横幅いっぱいに表示（2026-10-08）。 */
.event-legacy .event-content > .section-heading h2 {
  font-size: var(--type-heading, 20px);
  line-height: 1.5;
}
.event-legacy .detail-body {
  color: #ffffff;
}
.event-legacy .legacy-prizes {
  margin-bottom: 0;
}
.event-legacy .legacy-prizes .prize-body {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 32px;
  padding: 8px 0 32px;
}
.event-legacy .legacy-prizes .card-prize-grid {
  min-width: 0;
  margin: 0;
  gap: 16px;
}
.event-legacy .legacy-prizes .prize-card {
  padding: 18px;
}
.event-legacy .legacy-prize-ranks {
  min-width: 0;
}
.event-legacy .legacy-prize-ranks h3 {
  margin: 0 0 16px;
}
.event-legacy .legacy-prize-ranks .rank-list {
  margin: 0;
}
.event-legacy .legacy-prize-ranks .rank-list li {
  display: grid;
  grid-template-columns: 64px 100px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 16px;
}
.event-legacy .legacy-prize-points {
  white-space: nowrap;
}
.event-legacy .legacy-prize-ranks .legacy-prize-promo {
  color: #ffffff;
  font-family: inherit;
  overflow-wrap: anywhere;
}
@media (max-width: 1020px) {
}
@media (max-width: 760px) {
  .event-legacy .legacy-prizes .prize-card {
    padding: 12px;
  }
  .event-legacy .legacy-prize-ranks .rank-list li {
    grid-template-columns: 1fr auto;
  }
  .event-legacy .legacy-prize-promo {
    grid-column: 1 / -1;
  }
}

/* Legacy賞品配置の再調整：画像2点と申込を上段、順位別賞品を下段に。 */
.event-legacy .legacy-prizes .prize-body {
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 32px 60px;
}
.event-legacy .legacy-prizes .card-prize-grid {
  grid-column: 1;
  grid-row: 1;
}
.event-legacy .legacy-prizes .event-aside {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: start;
}
.event-legacy .legacy-prize-ranks {
  grid-column: 1;
  grid-row: 2;
}
.event-legacy .legacy-prize-ranks .rank-list {
  grid-template-columns: minmax(0, 1fr);
}
.event-legacy .legacy-prize-ranks .rank-list li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 6px;
}
.event-legacy .legacy-prize-points {
  white-space: normal;
}
@media (max-width: 1020px) {
  .event-legacy .legacy-prizes .prize-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .event-legacy .legacy-prizes .event-aside {
    grid-column: 1;
    grid-row: 2;
    position: static;
  }
  .event-legacy .legacy-prize-ranks {
    grid-row: 3;
  }
}
@media (max-width: 760px) {
  .event-legacy .legacy-prize-ranks .rank-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* 参加申し込みは賞品アコーディオンの外に独立して配置。 */
.event-legacy .legacy-prize-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 60px;
  align-items: start;
  margin-bottom: 48px;
}
.event-legacy .legacy-prize-layout > .event-aside {
  position: sticky;
  top: calc(var(--header) + 26px);
}
.event-legacy .legacy-prize-layout .legacy-prizes {
  margin-bottom: 0;
  min-width: 0;
}
.event-legacy .legacy-prize-layout .prize-body {
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}
.event-legacy .legacy-prize-layout .legacy-prize-ranks {
  grid-column: 1;
  grid-row: 2;
}
@media (max-width: 1020px) {
  .event-legacy .legacy-prize-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .event-legacy .legacy-prize-layout > .event-aside {
    position: static;
  }
}

/* 参加申し込みは大会詳細全体のサイドナビとして追従。 */
.event-legacy .legacy-detail-layout {
  grid-template-columns: minmax(0, 1fr) 290px;
  align-items: start;
  gap: 60px;
}
.event-legacy .legacy-detail-layout > .detail-main {
  min-width: 0;
}
.event-legacy .legacy-detail-layout > .event-aside {
  position: sticky;
  top: calc(var(--header) + 26px);
  align-self: start;
}
.event-legacy .legacy-detail-layout .prize-body {
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}
.event-legacy .legacy-detail-layout .legacy-prize-ranks {
  grid-column: 1;
  grid-row: 2;
}
@media (max-width: 1020px) {
  .event-legacy .legacy-detail-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .event-legacy .legacy-detail-layout > .event-aside {
    position: static;
  }
}

/* VintageもLegacyと同じ大会詳細・賞品・追従ナビ構成にする。 */
.event-vintage .event-content > .section-heading h2 {
  font-size: var(--type-heading, 20px);
  line-height: 1.5;
}
.event-vintage .detail-body {
  color: #ffffff;
}
.event-vintage .vintage-detail-layout {
  grid-template-columns: minmax(0, 1fr) 290px;
  align-items: start;
  gap: 60px;
}
.event-vintage .vintage-detail-layout > .detail-main {
  min-width: 0;
}
.event-vintage .vintage-detail-layout > .event-aside {
  position: sticky;
  top: calc(var(--header) + 26px);
  align-self: start;
}
.event-vintage .vintage-prizes {
  margin-bottom: 0;
}
.event-vintage .vintage-prizes .prize-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: 32px;
  padding: 8px 0 32px;
}
.event-vintage .vintage-prizes .card-prize-grid {
  min-width: 0;
  margin: 0;
  gap: 16px;
}
.event-vintage .vintage-prizes .prize-card {
  padding: 18px;
}
.event-vintage .vintage-prize-ranks {
  min-width: 0;
}
.event-vintage .vintage-prize-ranks h3 {
  margin: 0 0 16px;
}
.event-vintage .vintage-prize-ranks .rank-list {
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
}
.event-vintage .vintage-prize-ranks .rank-list li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 6px;
  padding: 16px;
}
.event-vintage .vintage-prize-points {
  white-space: normal;
}
.event-vintage .vintage-prize-ranks .vintage-prize-promo {
  color: #ffffff;
  font-family: inherit;
  overflow-wrap: anywhere;
}
@media (max-width: 1020px) {
  .event-vintage .vintage-detail-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .event-vintage .vintage-detail-layout > .event-aside {
    position: static;
  }
}
@media (max-width: 760px) {
  .event-vintage .vintage-prizes .prize-card {
    padding: 12px;
  }
  .event-vintage .vintage-prize-ranks .rank-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* 英数字を装飾の少ないサンセリフ体へ統一（2026-10-08）。
         切り戻し：body の data-font-style="sans" を削除。
         公式ロゴ・カード画像そのものは変更しない。 */
body[data-font-style="sans"] {
  --font-sans: Arial, Helvetica, "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  font-family: var(--font-sans);
}
html body[data-font-style="sans"] :is(main, .site-header, .site-footer, .mobile-nav) :where(*) {
  font-family: var(--font-sans);
}
body[data-font-style="sans"]
  :is(.event-title-block h1, .event-title-block h1 span, .arena-format-copy h3) {
  font-family: var(--font-sans);
  font-style: normal;
  font-weight: 700;
  font-stretch: normal;
  letter-spacing: 0.01em;
}
body[data-font-style="sans"] .event-title-block h1 {
  font-size: clamp(40px, 7vw, 104px);
  line-height: 1.05;
}
body[data-font-style="sans"] .arena-format-copy h3 {
  font-size: clamp(32px, 4vw, 60px);
  line-height: 1.1;
}
body[data-font-style="sans"]
  :is(
    .arena-date > strong,
    .arena-format-foot b,
    .event-summary strong,
    .rank-list span,
    .deadline-grid b,
    time
  ) {
  font-variant-numeric: lining-nums tabular-nums;
  font-feature-settings:
    "palt" 0,
    "lnum" 1,
    "tnum" 1;
}
body[data-font-style="sans"] :is(.steps li, .side-steps li)::before {
  font-family: var(--font-sans);
}
@media (max-width: 760px) {
  body[data-font-style="sans"] .event-title-block h1 {
    font-size: clamp(36px, 10vw, 56px);
  }
  body[data-font-style="sans"] .arena-format-copy h3 {
    font-size: clamp(32px, 8vw, 48px);
  }
}

/* Vintageの2行タイトル：同じ横幅で、MVの縦方向中央へ。 */
.event-vintage .event-hero {
  align-items: center;
}
body[data-font-style="sans"] .event-vintage #vintage-title {
  display: inline-grid;
  width: max-content;
  max-width: 100%;
  gap: 0.12em;
}
body[data-font-style="sans"] #vintage-title .vintage-title-name {
  display: block;
  font-size: 1em;
  line-height: 1;
  letter-spacing: 0;
}
body[data-font-style="sans"] #vintage-title .vintage-title-championship {
  display: block;
  contain: inline-size;
  font-size: 0.6em;
  line-height: 1;
}
#vintage-title .vintage-title-championship svg {
  display: block;
  width: 100%;
  height: 1em;
  overflow: visible;
}
#vintage-title .vintage-title-championship text {
  font-size: 100px;
  font-weight: 700;
  letter-spacing: 0;
  fill: currentColor;
}
/* アートクレジットは中央移動の対象外。 */
@media (max-width: 760px) {
  .event-vintage .event-hero {
    display: flex;
    min-height: 440px;
    padding-block: 48px;
    align-items: center;
  }
}
.event-vintage .event-hero > .art-credit {
  position: absolute;
  right: max(24px, calc((100% - var(--max)) / 2));
  bottom: 24px;
  margin: 0;
}
/* Legacyの2行タイトル：同じ横幅で、MVの縦方向中央へ。 */
.event-legacy .event-hero {
  align-items: center;
}
body[data-font-style="sans"] .event-legacy #legacy-title {
  display: inline-grid;
  width: max-content;
  max-width: 100%;
  gap: 0.12em;
}
body[data-font-style="sans"] #legacy-title .legacy-title-name {
  display: block;
  font-size: 1em;
  line-height: 1;
  letter-spacing: 0;
}
body[data-font-style="sans"] #legacy-title .legacy-title-championship {
  display: block;
  contain: inline-size;
  font-size: 0.6em;
  line-height: 1;
}
#legacy-title .legacy-title-championship svg {
  display: block;
  width: 100%;
  height: 1em;
  overflow: visible;
}
#legacy-title .legacy-title-championship text {
  font-size: 100px;
  font-weight: 700;
  letter-spacing: 0;
  fill: currentColor;
}
/* アートクレジットは中央移動の対象外。 */
@media (max-width: 760px) {
  .event-legacy .event-hero {
    display: flex;
    min-height: 440px;
    padding-block: 48px;
    align-items: center;
  }
}
.event-legacy .event-hero > .art-credit {
  position: absolute;
  right: max(24px, calc((100% - var(--max)) / 2));
  bottom: 24px;
  margin: 0;
}

/* スマホ本戦MV：大会名を大きく、縦横とも中央へ配置。
         CHAMPIONSHIPは既存のSVGで大会名と同じ横幅を維持します。 */
@media (max-width: 760px) {
  .event-legacy .event-hero,
  .event-vintage .event-hero {
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  :is(.event-legacy, .event-vintage) .event-title-block {
    width: 100%;
    text-align: center;
  }
  body[data-font-style="sans"] .event-legacy #legacy-title,
  body[data-font-style="sans"] .event-vintage #vintage-title {
    margin-inline: auto;
    font-size: clamp(48px, 16vw, 88px);
    text-align: center;
  }
}

/* TOPの大会名とCHAMPIONSHIPも同じ横幅に揃える。 */
body[data-font-style="sans"] .arena-format-title {
  display: inline-grid;
  width: max-content;
  max-width: 100%;
  gap: 6px;
  margin-top: 9px;
  font-size: clamp(32px, 4vw, 60px);
}
body[data-font-style="sans"] .arena-format-title h3 {
  margin: 0;
  font-size: 1em;
  letter-spacing: 0;
}
body[data-font-style="sans"] .arena-format-title .format-championship {
  margin: 0;
  contain: inline-size;
  font-size: 0.6em;
  line-height: 1;
  letter-spacing: 0;
}
.format-championship svg {
  display: block;
  width: 100%;
  height: 1em;
  overflow: visible;
}
.format-championship text {
  font-size: 100px;
  font-weight: 700;
  letter-spacing: 0;
  fill: currentColor;
}
@media (max-width: 760px) {
  body[data-font-style="sans"] .arena-format-title {
    font-size: clamp(32px, 8vw, 48px);
  }
}

/* 賞品カード：PCは指定の位置・サイズ。小さい画面では段階的に縮小。 */
.arena-format-reward {
  right: 25px;
  top: 30px;
  width: 190px;
}
/* 回転したカードが定員・参加費の行に重ならない高さを確保。 */
.arena-format-copy {
  min-height: 230px;
}
@media (max-width: 1020px) {
  .arena-format-reward {
    right: 20px;
    top: 48px;
    width: 140px;
  }
  .arena-format-copy {
    min-height: 180px;
  }
}
@media (max-width: 900px) {
  .arena-format-reward {
    right: 20px;
    top: 54px;
    width: 110px;
  }
  .arena-format-copy {
    min-height: 150px;
  }
}
@media (max-width: 760px) {
  .arena-format-reward {
    right: 20px;
    top: 48px;
    width: 120px;
  }
}
@media (max-width: 400px) {
  .arena-format-reward {
    width: 100px;
  }
}
@media (max-width: 360px) {
  .arena-format-reward {
    right: 16px;
    top: 40px;
    width: 100px;
  }
  /* 狭いスマホでは画像の下にタイトルを置き、文字サイズは維持する。 */
  .arena-format-copy {
    margin-top: 170px;
    min-height: 120px;
  }
}

/* 目的別メニュー4項目：PCは中央に1列、スマホは2列。 */
.arena-shortcuts {
  grid-template-columns: repeat(4, minmax(0, 290px));
  justify-content: center;
  background: #0e2318;
}
.arena-shortcuts > a:nth-child(n) {
  border-right: 1px solid var(--line);
  border-bottom: 0;
}
.arena-shortcuts > a:first-child {
  border-left: 1px solid var(--line);
}
@media (min-width: 761px) {
  .arena-shortcuts b {
    text-align: center;
  }
}
@media (max-width: 760px) {
  .arena-shortcuts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .arena-shortcuts > a:first-child {
    border-left: 0;
  }
  .arena-shortcuts > a:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
  .arena-shortcuts > a:nth-child(2n) {
    border-right: 0;
  }
}

/* 開催日を定員・参加費と同じ情報欄へ集約。 */
.arena-format-foot {
  min-height: 132px;
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 16px;
}
.arena-format-foot > div {
  min-width: 0;
}
body[data-font-style="sans"] .arena-format-foot b {
  font-size: 20px;
  line-height: 1.5;
}
.arena-format-foot small {
  display: block;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
}
.arena-format-date b {
  display: flex;
  flex-wrap: wrap;
  gap: 0 4px;
}
.arena-format-date time {
  white-space: nowrap;
}
/* 空いた見出しエリアを使ってタイトルを拡大。2行の同幅は維持。 */
body[data-font-style="sans"] .arena-format-title .format-championship {
  font-size: 0.7em;
}
@media (min-width: 1200px) {
  body[data-font-style="sans"] .arena-format-title {
    font-size: clamp(48px, 4.7vw, 64px);
  }
}
@media (max-width: 760px) {
  body[data-font-style="sans"] .arena-format-title {
    font-size: 34px;
  }
  .arena-format-foot {
    min-height: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
  }
  .arena-format-foot .arena-format-date {
    grid-column: 1 / -1;
  }
}

/* 正式原稿差し替え：既存の配色・文字サイズを維持 */
.official-opening-hours {
  font-size: 16px;
  line-height: 1.8;
  margin-top: 20px;
}
.official-vendors {
  padding-bottom: 48px;
}
.official-vendors h2 {
  font-size: clamp(28px, 3vw, 36px);
  margin-bottom: 32px;
  text-align: center;
}
/* 出店店舗：ロゴと店舗名をひとつのリンクにまとめる */
.official-vendors > .vendor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 32px;
}
body[data-presentation="refined"] .official-vendors .vendor-card {
  display: grid;
  gap: 10px;
  min-width: 0;
  color: #fff;
  text-align: center;
  text-decoration: none;
}
.vendor-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 700 / 470;
  object-fit: contain;
  background: transparent;
}
/* PCでは下段の東京MTGを中央の列へ配置 */
@media (min-width: 761px) {
  .official-vendors .vendor-card:last-child:nth-child(3n + 1) {
    grid-column: 2;
  }
}
.vendor-card span {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}
.vendor-card:hover span {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.vendor-card:focus-visible {
  outline: 2px solid var(--accent, #b9dc83);
  outline-offset: 6px;
}
@media (max-width: 760px) {
  .official-vendors > .vendor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 16px;
  }
}
.package-body,
.side-event-body {
  overflow-wrap: anywhere;
}
.package-card summary > span {
  line-height: 1.5;
}
.side-event-card summary > b {
  font-size: 16px;
}
@media (max-width: 760px) {
  .side-event-card summary {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .side-event-card summary > b {
    text-align: left;
  }
}

/* サブページ見出し：高さ150px・縦横中央揃え（4ページのみ） */
:is([data-view="packages"], [data-view="side-events"], [data-view="faq"], [data-view="access"])
  > .page-hero {
  box-sizing: border-box;
  height: 150px;
  min-height: 150px;
  padding: 20px 24px;
  align-items: center;
  justify-content: center;
  text-align: center;
}
:is([data-view="packages"], [data-view="side-events"], [data-view="faq"], [data-view="access"])
  > .page-hero
  > div {
  width: 100%;
}
:is([data-view="packages"], [data-view="side-events"], [data-view="faq"], [data-view="access"])
  > .page-hero
  h1 {
  max-width: none;
  margin: 0;
}
:is([data-view="packages"], [data-view="side-events"], [data-view="faq"], [data-view="access"])
  > .page-hero
  .page-number {
  display: none;
}

/* 参加パッケージの予約ボタン */
[data-view="packages"] .package-body .package-reserve-button {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: 100%;
  min-height: 52px;
  margin-top: 24px;
  padding: 14px 20px;
  border: 1px solid #f86c0d;
  border-radius: 4px;
  background: #f86c0d;
  color: #ffffff;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
[data-view="packages"] .package-body .package-reserve-button:hover {
  filter: brightness(1.1);
}
[data-view="packages"] .package-body .package-reserve-button:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 4px;
}
.package-reserve-button::after {
  content: "";
  position: relative;
  left: 40px;
  border-top: 6px solid transparent;
  border-left: 10px solid #fff;
  border-bottom: 6px solid transparent;
  top: calc(50% - 6px);
}
/* 申込・提出期限と集合／開始時間の強調 */
body[data-typography="readable"] .schedule-important {
  color: #b9dc83;
  font-weight: 800;
}
/* ヴィンテージの重要時刻は画面のブルーに統一 */
body[data-typography="readable"] .event-vintage .schedule-important {
  color: var(--blue, #6bb8ef);
}

/* 全画面の文字サイズ下限：注釈・ナビゲーションも16px以上。
         既存の大見出し／小見出しのサイズ指定は維持します。 */
body[data-typography="readable"] {
  font-size: 16px;
  --type-body: 16px;
}
body[data-typography="readable"][data-font-style]
  :where(
    small,
    sup,
    sub,
    .prototype-bar,
    .brand-type small,
    .site-nav a,
    .header-cta,
    .kicker,
    .eyebrow,
    .hero-meta small,
    .hero-meta b span,
    .button,
    .art-credit,
    .format-card dt,
    .format-link,
    .text-link,
    .stat-stack span,
    .feature-strip span,
    .feature-strip p,
    .event-title-block > p:last-child,
    .event-date small,
    .event-date sup,
    .event-summary small,
    .notice span,
    .notice p,
    .accordion-group summary span,
    .detail-body,
    .promo-grid small,
    .deadline-grid small,
    .promo-grid p,
    .deadline-grid p,
    .prize-tier,
    .prize-card figcaption p,
    .event-aside p,
    .event-aside span,
    .event-aside a,
    .faq-toolbar label,
    .faq-toolbar > p,
    .faq-answer,
    .map-embed-placeholder small,
    .map-embed-placeholder p,
    .access-note,
    .site-footer > p,
    .site-footer > small,
    .prize-card figcaption h3,
    .faq-item summary,
    .mobile-nav a,
    .event-aside .event-package-link,
    .draft-notice p,
    .section-jumps,
    .package-card summary small,
    .package-body,
    .side-event-body,
    .pending-copy,
    .supplemental-notes,
    .side-hours h3 small,
    .side-hours dl > div,
    .side-event-body dl > div,
    .side-steps p,
    .side-event-card summary small,
    .side-event-card summary b,
    .side-day-switch button span,
    .side-day-status,
    .arena-topline,
    .arena-bottomline,
    .arena-label,
    .arena-description,
    .arena-text-link,
    .arena-date-divider,
    .arena-date p,
    .arena-date p b,
    .arena-shortcuts b,
    .arena-shortcuts span,
    .arena-section-heading > p,
    .arena-format-head,
    .arena-format-copy > small,
    .arena-format-copy p,
    .arena-format-foot small,
    .arena-format-foot b span,
    .arena-format-cta,
    .arena-reward-note,
    .prototype-bar p,
    .arena-year
  ) {
  font-size: 16px;
}
body[data-typography="readable"] .site-header .site-nav a,
body[data-typography="readable"] .header-cta,
body[data-typography="readable"] .mobile-nav a {
  font-size: 16px;
}
body[data-typography="readable"] .hero-year {
  font-size: clamp(16px, 1.8vw, 23px);
}
.site-header .site-nav {
  gap: clamp(10px, 1.2vw, 20px);
}
.site-header .site-nav a {
  letter-spacing: 0.02em;
}
.arena-topline,
.arena-bottomline,
.site-footer {
  flex-wrap: wrap;
  gap: 12px;
}
.art-credit {
  max-width: calc(100% - 32px);
  line-height: 1.5;
  text-align: right;
}
@media (max-width: 760px) {
  .mobile-nav {
    height: calc(92px + env(safe-area-inset-bottom, 0px));
  }
  .mobile-nav a {
    min-width: 0;
    padding: 8px 2px;
    white-space: normal;
    overflow-wrap: anywhere;
    line-height: 1.3;
    text-align: center;
    align-content: start;
  }
  .mobile-nav svg {
    flex-shrink: 0;
  }
  body {
    padding-bottom: calc(108px + env(safe-area-inset-bottom, 0px));
  }
}

/* 16pxのナビを窮屈にしないため、中間幅でも開閉メニューを使用。 */
@media (max-width: 360px) {
  .mobile-nav {
    height: calc(112px + env(safe-area-inset-bottom, 0px));
  }
  body {
    padding-bottom: calc(128px + env(safe-area-inset-bottom, 0px));
  }
}
@media (min-width: 1021px) and (max-width: 1100px) {
  .site-header .header-cta {
    display: none;
  }
  .menu-toggle {
    justify-self: end;
    width: 46px;
    height: 46px;
    padding: 12px;
    display: grid;
    align-content: center;
    gap: 5px;
    border: 1px solid var(--line);
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) {
    height: 1px;
    background: white;
    transition: 0.2s;
  }
  .menu-open .menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .menu-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }
  .menu-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}
.mobile-nav a .mobile-nav-label {
  font-size: inherit;
  color: inherit;
}
/* 表示の仕上げ：data-presentation="refined" を body から外すと切り戻せます。
         明るさは「主要導線・重要日時」→「本文」→「補助情報」の順に設定。 */
body[data-presentation="refined"] {
  --paper: #f2f5f1;
  --muted: #adb9b1;
}
body[data-presentation="refined"][data-route="vintage"] {
  --page-accent: #6bb8ef;
}
body[data-presentation="refined"][data-route="side-events"] {
  --page-accent: #ffac70;
}

/* 共通ナビ：現在地と予約への入口を明確に。 */
body[data-presentation="refined"] .site-header {
  border-bottom-color: var(--line);
}
body[data-presentation="refined"] .site-header .site-nav a {
  color: #bcc7bf;
  font-weight: 600;
  letter-spacing: 0;
}
body[data-presentation="refined"] .site-header .site-nav a:is(:hover, .is-active) {
  color: #ffffff;
}
body[data-presentation="refined"] .site-nav a.is-active::after {
  background: var(--page-accent);
  height: 2px;
}
body[data-presentation="refined"] .site-nav .language-link {
  border-color: var(--line);
  font-weight: 400;
}
body[data-presentation="refined"] :is(.header-cta, .button-primary) {
  clip-path: none;
  border-radius: 3px;
  font-weight: 700;
  letter-spacing: 0;
}
body[data-presentation="refined"] .header-cta {
  min-height: 48px;
  padding: 12px 20px;
  background: var(--action);
  color: #ffffff;
  white-space: nowrap;
}
body[data-presentation="refined"] .header-cta:hover {
  background: #ff8737;
}
body[data-presentation="refined"] :is(a, button, summary, input):focus-visible {
  outline: 2px solid var(--page-accent);
  outline-offset: 4px;
}

/* 公式アートを主役にし、装飾の斜線と強い影を整理。 */
body[data-presentation="refined"] .arena-hero::after {
  background: linear-gradient(0deg, rgba(4, 17, 10, 0.65), transparent 35%);
}
body[data-presentation="refined"] .arena-date {
  background: rgba(7, 23, 15, 0.88);
  border-color: rgba(208, 226, 213, 0.24);
  box-shadow: none;
}
body[data-presentation="refined"] :is(.arena-date-divider, .arena-year) {
  font-weight: 600;
  letter-spacing: 0.1em;
}
body[data-presentation="refined"] .arena-date p {
  font-weight: 400;
  letter-spacing: 0;
}
body[data-presentation="refined"] .arena-date .arena-venue {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
body[data-presentation="refined"] .arena-venue b {
  font-weight: 600;
}
body[data-presentation="refined"] .arena-bottomline:empty {
  display: none;
}
body[data-presentation="refined"] :is(.arena-shortcuts, .arena-shortcuts a) {
  background: #0b1b12;
}
body[data-presentation="refined"] .arena-shortcuts a:hover {
  background: #162a1d;
}
body[data-presentation="refined"] .arena-shortcuts b {
  font-weight: 600;
}
body[data-presentation="refined"] .arena-shortcuts span {
  color: #b0bdb3;
}
body[data-presentation="refined"] .arena-format {
  border-color: rgba(185, 220, 131, 0.25);
}
body[data-presentation="refined"] .arena-vintage {
  border-color: rgba(107, 184, 239, 0.25);
}
body[data-presentation="refined"] .arena-format:hover {
  border-color: var(--format-accent);
}
body[data-presentation="refined"] .arena-format-reward {
  transform: rotate(4deg);
  filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.3));
}
body[data-presentation="refined"] .arena-format-cta {
  background: rgba(5, 15, 10, 0.72);
  color: var(--format-accent);
  border-top: 1px solid var(--line);
  font-weight: 600;
  min-height: 56px;
  align-items: center;
}
body[data-presentation="refined"] .arena-format:hover .arena-format-cta {
  background: rgba(5, 15, 10, 0.92);
  color: #ffffff;
}
body[data-presentation="refined"] .official-vendors {
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
body[data-presentation="refined"] .official-vendors a {
  color: #d9e0da;
  text-decoration: underline;
  text-decoration-color: #677b6c;
  text-underline-offset: 5px;
}

/* 読む画面では色面を抑え、文字と余白で階層をつくる。 */
body[data-presentation="refined"] .page-hero {
  background: #10241a;
}
body[data-presentation="refined"] [data-view="side-events"] .page-hero {
  background: #2a1c12;
}
body[data-presentation="refined"] .page-hero h1 {
  font-weight: 700;
  letter-spacing: 0;
}
body[data-presentation="refined"] :is(.supplemental-content, .faq-layout) {
  padding-block: 40px 80px;
}
body[data-presentation="refined"][data-typography="readable"] .supplemental-content h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.5;
  margin-block: 40px 24px;
}
body[data-presentation="refined"] .section-jumps {
  margin: 0 0 32px;
  gap: 12px 28px;
}
body[data-presentation="refined"] .section-jumps a {
  color: #becbc2;
  font-weight: 400;
  text-decoration: underline;
  text-decoration-color: #53695b;
  text-underline-offset: 5px;
}
body[data-presentation="refined"] .section-jumps a:hover {
  color: #ffffff;
  text-decoration-color: currentColor;
}
body[data-presentation="refined"]
  :is(
    .event-summary small,
    .arena-format-foot small,
    .faq-toolbar label,
    .faq-toolbar > p,
    .access-note,
    .pending-copy,
    .arena-reward-note,
    .side-day-status,
    .site-footer > p,
    .site-footer > small
  ) {
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0;
}
body[data-presentation="refined"]
  :is(
    .detail-body p,
    .package-body p,
    .faq-answer p,
    .side-event-body p,
    .supplemental-notes p,
    .access-info p
  ) {
  line-height: 1.85;
  letter-spacing: 0;
}
body[data-presentation="refined"] .event-summary {
  background: var(--surface);
}
body[data-presentation="refined"] .event-summary > div {
  padding-block: 24px;
}
body[data-presentation="refined"] .event-summary strong {
  font-weight: 600;
  letter-spacing: 0;
}
body[data-presentation="refined"] .notice {
  margin: 28px 0 48px;
  border: 0;
  border-left: 3px solid var(--page-accent);
  background: rgba(188, 212, 193, 0.055);
  align-items: center;
  padding: 18px 22px;
  gap: 20px;
}
body[data-presentation="refined"] .notice > span {
  padding: 0;
  background: none;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.05em;
}
body[data-presentation="refined"] .notice p {
  padding: 0;
}
body[data-presentation="refined"] .schedule-important,
body[data-presentation="refined"] .event-summary .schedule-important {
  font-weight: 700;
}
body[data-presentation="refined"] .schedule-label {
  color: var(--paper);
  font-weight: 600;
}
body[data-presentation="refined"] .accordion-group summary {
  font-weight: 600;
  min-height: 76px;
  gap: 0;
}
body[data-presentation="refined"] .accordion-group summary > span:empty {
  display: none;
}
body[data-presentation="refined"] .accordion-group summary::after {
  color: #b7c5bc;
  font-size: 24px;
}
body[data-presentation="refined"] .detail-body {
  padding-inline: 0;
}
body[data-presentation="refined"] .prize-card {
  background: transparent;
  border-color: var(--line);
}
body[data-presentation="refined"] .prize-tier {
  background: transparent;
  padding: 6px 0;
  color: var(--page-accent);
  font-weight: 700;
  letter-spacing: 0.06em;
}
body[data-presentation="refined"][data-typography="readable"] .prize-card figcaption h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}
body[data-presentation="refined"] .prize-card figcaption p {
  color: var(--muted);
  margin-top: 6px;
}
body[data-presentation="refined"] .is-foil .card-visual::before {
  opacity: 0.6;
  animation-duration: 9s;
}
body[data-presentation="refined"] .is-foil .card-visual::after {
  opacity: 0.32;
  animation-duration: 11s;
}
body[data-presentation="refined"] .event-view .rank-list {
  background: transparent;
  gap: 0;
}
body[data-presentation="refined"] :is(.legacy-prize-ranks, .vintage-prize-ranks) .rank-list li {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 6px 20px;
  padding: 20px 0;
  background: transparent;
  border-top: 1px solid var(--line);
}
body[data-presentation="refined"] .rank-list li > b {
  grid-row: 1 / span 2;
  font-weight: 600;
}
body[data-presentation="refined"] .rank-list :is(.legacy-prize-points, .vintage-prize-points) {
  font-weight: 700;
}
body[data-presentation="refined"] .rank-list :is(.legacy-prize-promo, .vintage-prize-promo) {
  grid-column: 2;
  font-weight: 400;
}
body[data-presentation="refined"] .event-aside {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 24px;
}
body[data-presentation="refined"] .event-aside > p {
  color: var(--paper);
  font-weight: 600;
  letter-spacing: 0;
}
body[data-presentation="refined"] .event-aside .event-package-link {
  background: var(--page-accent);
  border-color: var(--page-accent);
  border-radius: 3px;
  color: #102018;
  padding: 14px 12px;
  font-weight: 700;
}
body[data-presentation="refined"] .event-aside .event-package-link:hover {
  background: #eef4e9;
  border-color: #eef4e9;
}
body[data-presentation="refined"] .event-aside > a:not(.event-package-link) {
  color: var(--muted);
  font-weight: 400;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* パッケージ：名称→価格→内容→予約の順で読めるリズムに。 */
body[data-presentation="refined"] .package-grid {
  gap: 28px;
}
body[data-presentation="refined"] .package-card {
  --package-accent: #b9dc83;
  background: var(--surface);
  border-color: var(--line);
}
body[data-presentation="refined"] .package-card[data-package="vintage"] {
  --package-accent: #6bb8ef;
}
body[data-presentation="refined"] .package-card[data-package="side"] {
  --package-accent: #ffac70;
}
body[data-presentation="refined"] .package-card summary {
  padding: 24px 24px 16px;
}
body[data-presentation="refined"] .package-card summary > span {
  position: relative;
  display: block;
  padding-right: 28px;
  font-weight: 600;
  overflow-wrap: normal;
}
body[data-presentation="refined"] .package-card summary > span::before {
  content: none;
}
body[data-presentation="refined"] .package-card summary > span::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--muted);
  font-size: 24px;
  font-weight: 400;
}
body[data-presentation="refined"] .package-card[open] summary > span::after {
  content: "−";
}
body[data-presentation="refined"] .package-card summary > strong {
  margin-top: 16px;
  color: var(--package-accent);
  font-weight: 700;
  letter-spacing: 0;
}
body[data-presentation="refined"] .package-image {
  border: 0;
  margin-bottom: 24px;
}
body[data-presentation="refined"] .package-body > ul {
  margin: 0 0 24px;
}
body[data-presentation="refined"] .package-body > p {
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #bdc9c0;
}
body[data-presentation="refined"] [data-view="packages"] .package-body .package-reserve-button {
  position: relative;
  background: #f86c0d;
  color: #23150c;
  font-size: 24px;
  font-weight: 700;
  border-radius: 3px;
  padding: 14px 44px;
  gap: 16px;
  line-height: 1.5;
}
body[data-presentation="refined"] .package-reserve-button::after {
  position: absolute;
  left: auto;
  right: 22px;
  top: 50%;
  width: 8px;
  height: 8px;
  border: 0;
  border-top: 2px solid #ffffff;
  border-right: 2px solid #ffffff;
  transform: translateY(-50%) rotate(45deg);
}

/* サイドイベント：オレンジは選択状態と遊び方に集中させる。 */
body[data-presentation="refined"] .side-day-switch button {
  border-color: var(--line);
  background: #201b15;
  color: #c6c1b8;
  border-radius: 3px;
}
body[data-presentation="refined"] .side-day-switch button[aria-pressed="true"] {
  background: #ffac70;
  border-color: #ffac70;
  color: #28190f;
}
body[data-presentation="refined"] .side-hours article {
  background: #211b14;
  border-color: var(--line);
}
body[data-presentation="refined"] .side-hours h3 {
  color: var(--paper);
  font-size: 24px;
  font-weight: 600;
}
body[data-presentation="refined"] .side-hours dt {
  color: #c3b8aa;
}
body[data-presentation="refined"] .side-hours dd {
  color: #ffffff;
  font-weight: 600;
}
body[data-presentation="refined"] .side-steps li {
  background: #efab75;
  padding: 24px;
  border: 0;
  color: #281b11;
}
body[data-presentation="refined"][data-typography="readable"] .side-steps li::before {
  font-size: 28px;
  margin-bottom: 18px;
  font-weight: 600;
  color: #634123;
}
body[data-presentation="refined"] .side-steps strong {
  font-weight: 700;
}
body[data-presentation="refined"] .side-steps p {
  line-height: 1.8;
  font-weight: 400;
}
body[data-presentation="refined"] .side-event-card summary > span {
  font-weight: 600;
}
body[data-presentation="refined"] .side-event-card summary small {
  color: #bcbfb7;
  font-weight: 400;
  letter-spacing: 0;
}
body[data-presentation="refined"] .side-event-card summary b {
  font-weight: 500;
  line-height: 1.6;
}
body[data-presentation="refined"] .side-event-body dd {
  font-weight: 600;
}

/* FAQとアクセス：探す・読む操作を優先する。 */
body[data-presentation="refined"] .faq-toolbar > div {
  max-width: 760px;
}
body[data-presentation="refined"] .faq-toolbar input {
  border-color: #52665a;
  background: #102018;
  border-radius: 3px;
  min-height: 56px;
}
body[data-presentation="refined"] .faq-toolbar input::placeholder {
  color: #b0bdb5;
}
body[data-presentation="refined"] .faq-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
}
body[data-presentation="refined"] .faq-list {
  border-top: 1px solid var(--line);
  gap: 0;
}
body[data-presentation="refined"][data-typography="readable"] .faq-item summary {
  font-size: 16px;
  font-weight: 600;
  padding-block: 24px;
}
body[data-presentation="refined"] .faq-item[open] {
  background: rgba(185, 220, 131, 0.04);
}
body[data-presentation="refined"] .faq-answer {
  color: #d6dfd9;
}
body[data-presentation="refined"] .access-layout {
  align-items: start;
  padding-block: 48px 80px;
  gap: 48px;
}
body[data-presentation="refined"] .access-info h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.5;
}
body[data-presentation="refined"] .route-list > div > span {
  color: #a9b8ad;
}
body[data-presentation="refined"] .site-footer {
  background: #07100b;
  padding-block: 36px;
}

@media (max-width: 1100px) {
  body[data-presentation="refined"] .site-header .site-nav a.is-active {
    background: rgba(185, 220, 131, 0.09);
    color: var(--page-accent);
  }
}
@media (max-width: 760px) {
  body[data-presentation="refined"] .notice {
    padding: 18px;
    align-items: start;
    gap: 12px;
  }
  body[data-presentation="refined"] .notice > span {
    padding-top: 4px;
  }
  body[data-presentation="refined"] :is(.legacy-prize-ranks, .vintage-prize-ranks) .rank-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
  body[data-presentation="refined"] .rank-list li > b,
  body[data-presentation="refined"] .rank-list :is(.legacy-prize-promo, .vintage-prize-promo) {
    grid-column: auto;
    grid-row: auto;
  }
  body[data-presentation="refined"] .package-grid {
    gap: 24px;
  }
  body[data-presentation="refined"] .package-card summary {
    padding: 18px 18px 16px;
  }
  body[data-presentation="refined"] .package-body {
    padding: 0 18px 20px;
  }
  body[data-presentation="refined"] .section-jumps {
    gap: 12px 20px;
  }
  body[data-presentation="refined"] :is(.supplemental-content, .faq-layout) {
    padding-block: 28px 56px;
  }
  body[data-presentation="refined"] .access-layout {
    padding-block: 28px 56px;
    gap: 32px;
  }
  body[data-presentation="refined"] .mobile-nav a {
    font-weight: 400;
    color: #b3bfb7;
  }
  body[data-presentation="refined"] .mobile-nav a.is-active {
    color: var(--page-accent);
    font-weight: 700;
  }
}
@media (prefers-reduced-motion: reduce) {
  body[data-presentation="refined"] .view.is-active,
  body[data-presentation="refined"] .is-foil .card-visual::before,
  body[data-presentation="refined"] .is-foil .card-visual::after {
    animation: none;
  }
}
/* 開催概要の明るい配色。
         切り戻す場合は body の data-event-panels="accent" を外してください。 */
body[data-event-panels="accent"] .event-legacy {
  --event-panel-accent: #b9dc83;
  --event-panel-ink: #182b17;
  --event-panel-secondary: #354b30;
  --event-panel-rule: rgba(24, 43, 23, 0.2);
}
body[data-event-panels="accent"] .event-vintage {
  --event-panel-accent: #6bb8ef;
  --event-panel-ink: #102d43;
  --event-panel-secondary: #304e65;
  --event-panel-rule: rgba(16, 45, 67, 0.2);
}
body[data-event-panels="accent"] .event-view .event-summary {
  background: var(--event-panel-accent);
  /* 文字の配置幅を保ったまま、背景色だけ画面の左右端まで広げます。 */
  box-shadow: 0 0 0 100vmax var(--event-panel-accent);
  clip-path: inset(0 -100vmax);
  border-color: var(--event-panel-rule);
  color: var(--event-panel-ink);
}
body[data-event-panels="accent"] .event-view .event-summary > div {
  border-color: var(--event-panel-rule);
}
body[data-event-panels="accent"] .event-view .event-summary small {
  color: var(--event-panel-secondary);
  font-weight: 600;
}
body[data-event-panels="accent"] .event-view .event-summary strong,
body[data-event-panels="accent"] .event-view .event-summary strong :is(time, span) {
  color: var(--event-panel-ink);
}
@media (max-width: 760px) {
  body[data-event-panels="accent"] .event-view .event-summary > div {
    padding-inline: 12px;
  }
}
/* ヴィンテージMV：画像だけを画面に固定し、文字と陰影は通常スクロール。
         切り戻す場合は body の data-vintage-background="fixed" を外してください。 */
body[data-vintage-background="fixed"] .event-vintage .event-hero {
  background-attachment: scroll, scroll, fixed;
}
/* 同じ固定画像を大会詳細の奥にも敷きます。
         写真側を暗く整え、白い本文を読みやすく保ちます。 */
body[data-vintage-background="fixed"] .event-vintage {
  background:
    linear-gradient(rgba(4, 20, 34, 0.72), rgba(4, 20, 34, 0.72)),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/treasure-cruise.webp") center 52% /
      cover no-repeat;
  background-attachment: fixed;
}
body[data-vintage-background="fixed"] .event-vintage .content-shell.event-content {
  /* 黒の濃度20％＝80％透過。本文やカードの透明度は変えません。 */
  background-color: rgba(0, 0, 0, 0.2);
}
/* 透過パネルの内側に余白を設け、見出し・本文・賞品の左端を揃えます。
         開催概要のカラーパネルは従来の幅を維持します。 */
body[data-vintage-background="fixed"]
  .event-vintage
  .content-shell.event-content
  > :is(.notice, .section-heading, .detail-layout) {
  margin-inline: 32px;
}
@media (max-width: 760px) {
  body[data-vintage-background="fixed"]
    .event-vintage
    .content-shell.event-content
    > :is(.notice, .section-heading, .detail-layout) {
    margin-inline: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  body[data-vintage-background="fixed"] .event-vintage,
  body[data-vintage-background="fixed"] .event-vintage .event-hero {
    background-attachment: scroll;
  }
}
/* レガシーも固定MVと透過パネルに統一。
         切り戻す場合は body の data-legacy-background="fixed" を外してください。 */
body[data-legacy-background="fixed"] .event-legacy .event-hero {
  background-attachment: scroll, scroll, fixed;
}
body[data-legacy-background="fixed"] .event-legacy {
  background:
    linear-gradient(rgba(5, 19, 10, 0.72), rgba(5, 19, 10, 0.72)),
    url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp") center
      48% / cover no-repeat;
  background-attachment: fixed;
}
body[data-legacy-background="fixed"] .event-legacy .content-shell.event-content {
  background-color: rgba(0, 0, 0, 0.2);
}
body[data-legacy-background="fixed"]
  .event-legacy
  .content-shell.event-content
  > :is(.notice, .section-heading, .detail-layout) {
  margin-inline: 32px;
}
@media (max-width: 760px) {
  body[data-legacy-background="fixed"]
    .event-legacy
    .content-shell.event-content
    > :is(.notice, .section-heading, .detail-layout) {
    margin-inline: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  body[data-legacy-background="fixed"] .event-legacy,
  body[data-legacy-background="fixed"] .event-legacy .event-hero {
    background-attachment: scroll;
  }
}
/* スマホ本戦背景：ページ全長ではなく、画面サイズの固定レイヤーに描画。
         モバイルでの background-attachment: fixed に依存しません。
         切り戻しはこのメディアクエリのブロックを削除してください。 */
@media (max-width: 760px) {
  body[data-legacy-background="fixed"] .event-legacy,
  body[data-vintage-background="fixed"] .event-vintage {
    position: relative;
    z-index: 0;
    isolation: isolate;
    background: none;
    /* 画面切替時の transform が固定背景の基準を変えないようにする */
    animation: none;
    transform: none;
  }
  body[data-legacy-background="fixed"] .event-legacy {
    --mobile-event-art: url("https://files.hareruyamtg.com/img/usr/eternal_weekend/life-from-the-loam.webp");
    --mobile-event-position: center 48%;
    --mobile-event-shade: 5, 19, 10;
  }
  body[data-vintage-background="fixed"] .event-vintage {
    --mobile-event-art: url("https://files.hareruyamtg.com/img/usr/eternal_weekend/treasure-cruise.webp");
    --mobile-event-position: center 52%;
    --mobile-event-shade: 4, 20, 34;
  }
  body[data-legacy-background="fixed"] .event-legacy::before,
  body[data-vintage-background="fixed"] .event-vintage::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    /* PC同様、画像そのものに72％の暗いオーバーレイを重ねる */
    background-image:
      linear-gradient(rgba(var(--mobile-event-shade), 0.72), rgba(var(--mobile-event-shade), 0.72)),
      var(--mobile-event-art);
    background-position: var(--mobile-event-position);
    background-size: cover;
    background-repeat: no-repeat;
  }
  body[data-legacy-background="fixed"] .event-legacy .event-hero,
  body[data-vintage-background="fixed"] .event-vintage .event-hero {
    background: linear-gradient(
      90deg,
      rgba(var(--mobile-event-shade), 0.15),
      rgba(var(--mobile-event-shade), 0)
    );
  }
  body[data-legacy-background="fixed"] .event-legacy .content-shell.event-content,
  body[data-vintage-background="fixed"] .event-vintage .content-shell.event-content {
    background-color: rgba(0, 0, 0, 0.2);
  }
}
/* 晴れる屋公式サイトの共通フッター：配色・リンク・ロゴを統一。
         ページ共通の可読性に合わせ、文字は16px以上を維持します。 */
.hareruya-footer {
  /* 固定された本戦背景より前面に、不透明なフッターを表示 */
  position: relative;
  z-index: 1;
  background: #e60012;
  color: #ffffff;
  padding: 36px 24px 16px;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
}
.hareruya-footer__nav {
  display: grid;
  grid-template-columns: 1fr 1fr 1.6fr;
  gap: 64px;
  width: min(100%, 1000px);
  margin: 0 auto;
}
.hareruya-footer__group {
  min-width: 0;
}
.hareruya-footer__group > summary {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: default;
}
.hareruya-footer__group > summary::-webkit-details-marker {
  display: none;
}
.hareruya-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.hareruya-footer__links a {
  display: block;
  padding: 4px 0;
  color: #ffffff;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.hareruya-footer__links a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.hareruya-footer :is(a, summary):focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 4px;
}
.hareruya-footer__company {
  margin-top: 48px;
  text-align: center;
}
.hareruya-footer__logo {
  display: inline-block;
  max-width: 100%;
}
.hareruya-footer__logo img {
  display: block;
  width: 227px;
  max-width: 100%;
  height: auto;
}
.hareruya-footer__copyright {
  margin: 5px 0 0;
  color: #ffffff;
  font-size: 16px;
  line-height: 1.6;
}
/* Official rights notice: shared by every view; artist credits follow the active view. */
.event-rights {
  color: #ffffff;
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
  padding: 20px 0;
}
.event-rights p {
  margin: 8px 0 0;
  font-size: inherit;
  overflow-wrap: anywhere;
}
.event-rights [hidden] {
  display: none;
}
@media (max-width: 760px) {
  .hareruya-footer {
    padding: 30px 24px calc(24px + env(safe-area-inset-bottom));
  }
  .hareruya-footer__nav {
    display: block;
  }
  .hareruya-footer__group {
    border: 1px solid rgba(255, 255, 255, 0.85);
  }
  .hareruya-footer__group + .hareruya-footer__group {
    margin-top: -1px;
  }
  .hareruya-footer__group > summary {
    position: relative;
    margin: 0;
    padding: 12px 48px 12px 20px;
    cursor: pointer;
  }
  .hareruya-footer__group > summary::after {
    content: "";
    position: absolute;
    right: 22px;
    top: 50%;
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-top: 9px solid #ffffff;
    transform: translateY(-50%);
  }
  .hareruya-footer__group[open] > summary::after {
    transform: translateY(-50%) rotate(180deg);
  }
  .hareruya-footer__links {
    padding: 4px 20px 16px;
  }
  .hareruya-footer__links a {
    padding-block: 9px;
  }
  .hareruya-footer__company {
    margin-top: 44px;
  }
}
body[data-presentation="refined"] {
  --paper: #ffffff;
  --muted: #ffffff;
  --line: rgba(201, 218, 207, 0.16);
  --surface: #0e1d16;
  --action: #f86c0d;
  --page-accent: #b9dc83;
  font-weight: 400;
  line-height: 1.75;
}
body[data-presentation="refined"] .faq-answer {
  color: #ffffff;
}
body[data-presentation="refined"] .package-body > p {
  color: #ffffff;
}
body[data-presentation="refined"] .side-hours dt {
  color: #ffffff;
}
.side-event-orange summary > span,
.side-event-orange summary b,
.side-event-orange summary::marker {
  color: #ffffff;
}
body[data-presentation="refined"] [data-view="packages"] .package-body .package-reserve-button {
  color: #ffffff;
}

/* ==================== 04. LANGUAGE / SHARED UTILITIES ==================== */
.account-link {
  color: #00fffa;
}
html[lang="en"] .mobile-nav a {
  letter-spacing: 0;
}
html[lang="en"] .mobile-nav-label {
  overflow-wrap: normal;
}
html[lang="en"] .package-card summary > span {
  overflow-wrap: normal;
}
@media (min-width: 1101px) {
  html[lang="en"] .site-header {
    gap: 16px;
    padding-inline: 24px;
  }
  html[lang="en"] .site-nav {
    gap: 14px;
  }
  html[lang="en"] .brand-logo {
    width: 155px;
  }
}