/* ListeningDrill legal — inkbench booth theme (unique to this app) */
:root{
  --ink:#14233a; --navy:#1f3a5f; --sky:#3d7cc9; --amber:#f5a623; --amber-d:#d4890f;
  --paper:#f7f4ec; --card:#fffdf8; --line:#d9d0bc; --mute:#5c6b7e; --ok:#2f9e6b; --warn:#c0392b;
  --radius:18px; --shadow:0 14px 40px rgba(20,35,58,.10);
  --font:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",system-ui,-apple-system,sans-serif;
  --serif:"Iowan Old Style","Hiragino Mincho ProN","Yu Mincho",Georgia,serif;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:
  radial-gradient(1200px 500px at 10% -10%,rgba(245,166,35,.18),transparent 55%),
  radial-gradient(900px 420px at 100% 0%,rgba(61,124,201,.14),transparent 50%),
  linear-gradient(180deg,#eef2f7 0%,var(--paper) 42%,#ebe6d8 100%);
  min-height:100vh;line-height:1.65}
a{color:var(--sky);text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:var(--amber-d)}
.booth{max-width:920px;margin:0 auto;padding:18px 18px 64px}
.booth-top{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;justify-content:space-between;
  padding:14px 16px;background:rgba(255,253,248,.86);border:1px solid var(--line);border-radius:999px;
  box-shadow:var(--shadow);backdrop-filter:blur(8px);position:sticky;top:10px;z-index:5}
.mark{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;letter-spacing:.02em}
.mark .ear{width:36px;height:36px;border-radius:12px;background:linear-gradient(145deg,var(--navy),var(--sky));
  display:grid;place-items:center;box-shadow:inset 0 -2px 0 rgba(0,0,0,.15)}
.mark .ear svg{width:20px;height:20px}
.mark small{display:block;font-weight:600;color:var(--mute);font-size:.72rem;letter-spacing:.04em}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs a{padding:8px 12px;border-radius:999px;color:var(--navy);text-decoration:none;font-size:.92rem;font-weight:650;
  border:1px solid transparent}
.tabs a[aria-current="page"]{background:var(--navy);color:#fff;border-color:var(--navy)}
.tabs a:hover{border-color:var(--line);background:#fff}
.lang{display:flex;gap:4px;background:#eef2f7;padding:4px;border-radius:999px}
.lang a{padding:6px 10px;border-radius:999px;font-size:.78rem;font-weight:700;text-decoration:none;color:var(--mute)}
.lang a[aria-current="true"]{background:#fff;color:var(--navy);box-shadow:0 1px 4px rgba(20,35,58,.08)}
.hero{margin:28px 0 22px;padding:28px 26px 24px;border-radius:var(--radius);background:
  linear-gradient(135deg,rgba(31,58,95,.96),rgba(20,35,58,.92)),
  repeating-linear-gradient(-12deg,transparent,transparent 11px,rgba(245,166,35,.07) 11px,rgba(245,166,35,.07) 12px);
  color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-40px;top:-30px;width:180px;height:180px;border-radius:40%;
  background:radial-gradient(circle at 30% 30%,rgba(245,166,35,.45),transparent 65%);pointer-events:none}
.wave-score{display:flex;align-items:flex-end;gap:3px;height:42px;margin-bottom:14px}
.wave-score i{display:block;width:5px;border-radius:3px 3px 0 0;background:linear-gradient(180deg,var(--amber),rgba(255,255,255,.35));
  opacity:.9}
.hero h1{margin:0 0 6px;font-family:var(--serif);font-weight:700;font-size:clamp(1.55rem,3.2vw,2.05rem);letter-spacing:.01em}
.hero .meta{margin:0;opacity:.82;font-size:.92rem}
.sheet{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 8px;
  box-shadow:var(--shadow);margin-bottom:18px}
.sheet h2{margin:0 0 12px;font-size:1.12rem;color:var(--navy);display:flex;align-items:center;gap:10px}
.sheet h2 .n{font-family:var(--serif);font-size:.85rem;width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;background:linear-gradient(145deg,var(--amber),var(--amber-d));color:#fff;font-weight:800}
.sheet p,.sheet li{color:#243447}
.sheet ul{padding-left:1.15rem}
.sheet table{width:100%;border-collapse:collapse;font-size:.92rem;margin:8px 0 14px}
.sheet th,.sheet td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.sheet th{color:var(--mute);font-weight:700;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase}
.chip{display:inline-block;padding:3px 9px;border-radius:999px;background:rgba(245,166,35,.16);color:var(--amber-d);
  font-size:.78rem;font-weight:700;margin-right:4px}
.callout{border-left:4px solid var(--amber);background:#fff8e8;padding:12px 14px;border-radius:0 12px 12px 0;margin:12px 0}
.callout.warn{border-left-color:var(--warn);background:#fff0ee}
.foot{margin-top:28px;padding:16px 4px;color:var(--mute);font-size:.85rem;display:flex;flex-wrap:wrap;gap:10px 18px;justify-content:space-between}
.foot a{color:var(--navy)}
@media (max-width:640px){
  .booth-top{border-radius:18px}
  .sheet{padding:18px 14px 6px}
  .hero{padding:22px 18px}
}