:root {
  --navy: #16538c;
  --ink: #0c2f57;
  --pink: #eb6ca3;
  --yellow: #fce000;
  --cyan: #33b7cc;
  --white: #fff;
  --tint: #eef3f7;
  --line: #d5dfe8;
  --en: 'Bebas Neue', 'LINE Seed JP', sans-serif;
  --ja: 'LINE Seed JP', 'Hiragino Sans', sans-serif;
  --gutter: clamp(16px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--navy);
  color: var(--ink);
  font-family: var(--ja);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: .03em;
  overflow-wrap: anywhere; /* シートに長い英数字やURLが入っても枠からはみ出さない */
}
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ol, ul, dl, dd { margin: 0; padding: 0; }
ol, ul { list-style: none; }
a { color: inherit; }
mark { color: inherit; background: linear-gradient(transparent 60%, var(--yellow) 60%); }
h1, h2, h3, .lead { word-break: auto-phrase; }
.center { text-align: center; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 56px; max-width: 100%;
  padding: 12px 36px;
  border: 2px solid var(--white);
  color: var(--white);
  font-weight: 800;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  transition: transform .15s ease;
}
a.btn:hover { transform: translateY(-2px); }
a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.btn-primary { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.btn-off { border-color: rgba(255, 255, 255, .55); color: var(--white); font-weight: 700; }

/* ---------- セクション ---------- */
.sec { padding: clamp(56px, 8vw, 88px) 0; }
.sec-white { background: var(--white); }
.sec-navy { background: var(--navy); color: var(--white); }
.wrap { width: min(100%, 1120px); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-text { width: min(100%, 800px); }
.sec-head { text-align: center; margin-bottom: clamp(28px, 4vw, 44px); }
.sec-en { font-family: var(--en); font-size: clamp(44px, 7vw, 68px); line-height: 1; letter-spacing: .06em; }
.sec-bar { display: block; width: 72px; height: 6px; margin: 10px auto 14px; background: var(--cyan); }
.sec-ja { font-size: clamp(18px, 2.6vw, 22px); font-weight: 800; line-height: 1.6; }
.lead { font-size: clamp(15px, 2vw, 17px); }
.lead-center { margin-bottom: 28px; text-align: center; }

/* ---------- ヒーロー ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 520px) minmax(0, 480px); justify-content: center; align-items: center;
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(16px, 3vw, 40px) var(--gutter) clamp(48px, 6vw, 72px);
  background: var(--navy); color: var(--white);
}
.hero-kv { width: 100%; }
.hero-title { font-size: clamp(22px, 2.9vw, 32px); font-weight: 800; line-height: 1.45; }
.hero-date { margin-top: 18px; padding-top: 18px; border-top: 6px solid var(--cyan); font-size: clamp(22px, 2.8vw, 30px); font-weight: 800; line-height: 1.4; }
.hero-place { margin: 12px 0 28px; font-size: 15px; line-height: 1.7; }

/* ---------- タイムテーブル ---------- */
.tt { display: grid; gap: 10px; }
.tt-row { display: grid; grid-template-columns: 210px 1fr; gap: 16px; align-items: stretch; }
.tt-time { display: flex; align-items: center; font-family: var(--en); font-size: 38px; line-height: 1; letter-spacing: .03em; white-space: nowrap; }
.to { margin: 0 6px; opacity: .85; }
.tt-block { display: flex; align-items: center; gap: 16px; min-height: 72px; padding: 10px 20px; }
.tt-tag { padding-right: 16px; border-right: 2px solid currentColor; font-weight: 800; }
.tt-name { font-size: clamp(20px, 3vw, 26px); font-weight: 800; line-height: 1.3; }
.tt-single { margin-top: 4px; }
.tt-single .tt-time { font-size: 30px; }
.tt-single .tt-block { min-height: 44px; }
.tt-single .tt-name { font-size: 16px; font-weight: 700; letter-spacing: .14em; }
.c-pink { background: var(--pink); color: var(--ink); }
.c-yellow { background: var(--yellow); color: var(--ink); }
.c-cyan { background: var(--cyan); color: var(--ink); }
.c-white { background: var(--white); color: var(--ink); }
.c-rec { border: 2px solid rgba(255, 255, 255, .85); color: var(--white); }

/* ---------- 内容 ---------- */
.prog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prog { display: flex; flex-direction: column; gap: 10px; padding: clamp(22px, 3vw, 28px); background: var(--tint); border-top: 6px solid var(--navy); }
.prog-time { font-family: var(--en); font-size: 30px; line-height: 1; letter-spacing: .03em; color: var(--navy); }
.prog h3 { font-size: 21px; font-weight: 800; line-height: 1.45; }
.prog dl { margin-top: 4px; border-top: 1px solid var(--line); }
.prog dl > div { display: grid; grid-template-columns: 76px 1fr; gap: 8px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; line-height: 1.65; }
.prog dt { font-weight: 700; }
.note { font-size: 13px; line-height: 1.65; }

/* ---------- 体験会 ---------- */
.ws-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 32px; }
.ws-list li { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 16px 8px; text-align: center; }
.ws-time { font-family: var(--en); font-size: 26px; line-height: 1; letter-spacing: .03em; }
.ws-name { font-size: 18px; font-weight: 800; line-height: 1.4; }

/* ---------- 出演者 ---------- */
.soon { padding: clamp(32px, 6vw, 56px) 16px; background: var(--tint); font-family: var(--en); font-size: clamp(44px, 9vw, 88px); line-height: 1; letter-spacing: .08em; text-align: center; color: var(--navy); }
.perf-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 20px; }
.perf img { width: 100%; aspect-ratio: 1; object-fit: cover; margin-bottom: 10px; }
.perf-name { font-weight: 800; font-size: 18px; line-height: 1.4; }
.perf-role { font-size: 14px; }

/* ---------- 会場・フッター ---------- */
.access-name { font-size: 20px; font-weight: 800; }
#access .btn { margin-top: 20px; }
.access-note { margin-top: 24px; font-size: 14px; }
.site-footer { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 40px var(--gutter); background: var(--ink); color: var(--white); text-align: center; font-size: 13px; }
.site-footer img { margin-bottom: 14px; }
.site-footer a { text-underline-offset: 3px; }

/* ---------- 読み込み ---------- */
.loading { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 60vh; color: var(--white); }
.spinner { width: 22px; height: 22px; border: 3px solid rgba(255, 255, 255, .3); border-top-color: var(--white); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.load-error, .noscript { padding: 64px var(--gutter); text-align: center; color: var(--white); }

@media (max-width: 840px) {
  .hero { grid-template-columns: minmax(0, 480px); }
  .prog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  body { font-size: 15px; }
  .btn { width: 100%; padding-inline: 16px; }
  .tt-row { grid-template-columns: 1fr; gap: 4px; }
  .tt-row + .tt-row { margin-top: 6px; }
  .tt-time { font-size: 30px; }
  .tt-single .tt-time { font-size: 24px; }
  .tt-block { min-height: 60px; }
  .ws-list { grid-template-columns: 1fr; }
  .ws-list li { flex-direction: row; justify-content: space-between; padding: 14px 16px; text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
  .spinner { animation-duration: 2s; }
}