:root{
  --base:#FAF9F6;
  --ink:#1A1A1A;
  --accent:#E8A91A;
  --line:rgba(26,26,26,0.12);
  --shadow:0 14px 28px rgba(0,0,0,.14);
  --ease:cubic-bezier(0.22,1,0.36,1);
  --radius:16px;
  --heading:"Zen Kaku Gothic New",sans-serif;
  --body:"Noto Sans JP",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

.sec-in{max-width:1040px;margin:0 auto;padding:0 24px;}

/* 見出し */
.h2{
  font-family:var(--heading);
  font-weight:700;
  font-size:clamp(24px,4vw,34px);
  line-height:1.3;
  font-feature-settings:"palt";
  margin:0 0 40px;
}
.h2-line{display:inline-block;padding-bottom:16px;border-bottom:3px solid var(--accent);}

mark{background:linear-gradient(transparent 60%, var(--accent) 60%);color:var(--ink);padding:0 2px;}

/* ボタン */
.btn{
  display:inline-block;
  padding:16px 32px;
  border-radius:999px;
  font-family:var(--heading);
  font-weight:700;
  font-size:15px;
  letter-spacing:.02em;
  text-decoration:none;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7);}
.btn-ghost:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(0,0,0,.18);background:rgba(255,255,255,.08);}
.sing .btn-ghost,.overview .btn-ghost{color:var(--ink);border-color:var(--line);}
.btn-text{display:inline-block;padding:16px 8px;font-family:var(--heading);font-weight:700;font-size:15px;text-decoration:none;position:relative;}
.btn-text::after{content:"";position:absolute;left:8px;right:8px;bottom:10px;height:1px;background:var(--ink);transform:scaleX(1);transform-origin:right;transition:transform .35s var(--ease);}
.btn-text:hover::after{transform:scaleX(0);transform-origin:left;}

/* ヘッダー */
.hd{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(250,249,246,.92);border-bottom:1px solid var(--line);transition:padding .3s var(--ease);}
.hd-in{max-width:1120px;margin:0 auto;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;}
.hd.small .hd-in{padding:12px 24px;}
.hd-logo{font-family:var(--heading);font-weight:900;font-size:20px;text-decoration:none;letter-spacing:-0.01em;}
.hd-nav{display:flex;gap:32px;}
.hd-nav a{text-decoration:none;font-size:14px;font-weight:500;position:relative;padding:4px 0;}
.hd-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:right;transition:transform .35s var(--ease);}
.hd-nav a:hover::after{transform:scaleX(1);transform-origin:left;}
.hd-burger{display:none;width:44px;height:44px;border:none;background:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;}
.hd-burger span{width:22px;height:2px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s var(--ease);}
.hd-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hd-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hd-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ヒーロー */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 30%;}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 0%,rgba(0,0,0,.25) 45%,rgba(0,0,0,.82) 100%);}
.hero-in{position:relative;color:#fff;width:100%;max-width:1040px;margin:0 auto;padding:0 24px 112px;}
.hero-eyebrow{font-size:14px;font-weight:500;letter-spacing:.04em;margin:0 0 16px;opacity:.9;}
.hero-title{font-family:var(--heading);font-weight:900;font-size:clamp(44px,9vw,96px);line-height:1;margin:0;letter-spacing:-0.02em;font-feature-settings:"palt";}
.hero-title span{display:block;color:var(--accent);font-size:.5em;margin-top:8px;}
.hero-copy{font-family:var(--heading);font-weight:700;font-size:clamp(18px,2.4vw,24px);margin:40px 0 20px;}
.hero-meta{font-size:15px;font-weight:500;margin:0 0 36px;font-feature-settings:"tnum";opacity:.95;}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}

/* VOICE HUBとは：余白セクション */
.about{padding:160px 0;}
.about-in{max-width:720px;margin:0 auto;padding:0 24px;text-align:left;}
.about-text{font-size:17px;}

/* 出演グループ */
.lineup{padding:120px 0;}
.lineup-num{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:24px;}
.lineup-num-fig{font-family:var(--heading);font-size:clamp(48px,8vw,80px);font-weight:900;margin:0;font-feature-settings:"tnum";line-height:1;}
.lineup-num-fig b{color:var(--accent);}
.lineup-num-cap{font-size:14px;margin:0;max-width:260px;line-height:1.7;color:rgba(26,26,26,.7);}
.lineup-note{font-size:15px;margin:0 0 64px;line-height:1.9;}
.lineup-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0 20px;border-top:1px solid var(--line);}
.lineup-grid li{padding:18px 4px;border-bottom:1px solid var(--line);font-size:14px;font-weight:500;}

/* 写真の区切り */
.break{position:relative;}
.break img{width:100%;height:60vh;min-height:360px;object-fit:cover;}
.break-cap{position:absolute;left:24px;bottom:20px;color:#fff;font-size:13px;background:rgba(0,0,0,.4);padding:6px 12px;border-radius:999px;}

/* 開催概要 */
.overview{padding:120px 0;}
.ov-table{width:100%;border-collapse:collapse;margin-top:8px;}
.ov-table th,.ov-table td{text-align:left;padding:22px 16px;border-bottom:1px solid var(--line);font-size:15px;}
.ov-table th{width:120px;font-weight:700;font-family:var(--heading);vertical-align:top;}
.ov-sub{color:rgba(26,26,26,.65);font-size:13px;}

/* 過去の様子 */
.archive{padding:120px 0;background:#F2EEE6;}
.archive-num{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:48px;}
.archive-num-fig{font-family:var(--heading);font-size:clamp(40px,7vw,64px);font-weight:900;margin:0;font-feature-settings:"tnum";line-height:1;}
.archive-num-fig b{color:var(--accent);}
.archive-num-cap{font-size:14px;margin:0;color:rgba(26,26,26,.7);}
.archive-photos{display:grid;grid-template-columns:1.3fr .7fr;gap:24px;height:460px;}
.archive-photos figure{margin:0;height:100%;border-radius:var(--radius);overflow:hidden;}
.archive-photos img{width:100%;height:100%;object-fit:cover;}
.archive-overlay{position:relative;}
.archive-overlay figcaption{position:absolute;left:16px;bottom:16px;color:#fff;font-family:var(--heading);font-weight:700;font-size:16px;letter-spacing:.04em;background:rgba(0,0,0,.35);padding:6px 14px;border-radius:999px;}

/* Sing Together */
.sing{padding:120px 0;}
.sing-text{font-size:16px;margin:0 0 40px;}
.sing-btns{display:flex;gap:16px;flex-wrap:wrap;align-items:center;}

/* 最後のボタン */
.final{padding:140px 0;background:var(--ink);color:#fff;text-align:left;}
.final-lead{font-family:var(--heading);font-weight:700;font-size:clamp(22px,3.4vw,30px);margin:0 0 40px;font-feature-settings:"palt";}
.final .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}

/* フッター */
.ft{padding:56px 0;}
.ft-in{max-width:1040px;margin:0 auto;padding:0 24px;}
.ft-name{font-family:var(--heading);font-weight:700;font-size:15px;margin:0 0 8px;}
.ft-sub{font-size:12px;color:rgba(26,26,26,.6);margin:0 0 20px;}
.ft-links{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;margin:0 0 16px;}
.ft-links a{text-decoration:none;border-bottom:1px solid var(--line);}
.ft-copy{font-size:12px;color:rgba(26,26,26,.5);margin:0;}

/* カード系のホバー（持ち上げ） */
.archive-photos figure,.break{transition:none;}

/* 出現アニメーション（フェードアップ）。JavaScriptが動かない場合は最初から表示する */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease), transform .6s var(--ease);}
.js .reveal.on{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  .js .reveal{opacity:1;transform:none;transition:none;}
  .btn,.hd-burger span,.hd-nav a::after,.btn-text::after{transition:none;}
}

/* スマホ対応 */
@media (max-width:860px){
  .hd-nav{position:fixed;top:0;right:0;height:100svh;width:78%;max-width:320px;background:var(--base);flex-direction:column;justify-content:center;gap:28px;padding:24px;transform:translateX(100%);transition:transform .35s var(--ease);box-shadow:-8px 0 24px rgba(0,0,0,.08);}
  .hd-nav.open{transform:translateX(0);}
  .hd-nav a{font-size:18px;}
  .hd-burger{display:flex;}
  .hd{backdrop-filter:none;}

  .about{padding:96px 0;}
  .lineup,.overview,.archive,.sing{padding:80px 0;}
  .final{padding:96px 0;}

  .lineup-grid{grid-template-columns:repeat(2,1fr);}
  .archive-photos{grid-template-columns:1fr;height:auto;gap:16px;}
  .archive-photos figure{height:260px;}
  .ov-table th{width:92px;font-size:13px;}
  .ov-table th,.ov-table td{padding:16px 8px;font-size:14px;}
  .hero-in{padding:0 20px 56px;}
}

@supports (backdrop-filter: blur(8px)){
  @media (min-width:861px){ .hd{backdrop-filter:blur(8px);} }
}