.opening-page .shell{max-width:1120px}
.opening-intro{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}
.opening-intro h1{font-size:clamp(36px,5vw,60px);margin:0}.opening-intro h1 span{color:var(--accent)}
.opening-intro>p{max-width:340px;color:var(--muted);font-size:16px;margin-bottom:5px}
.opening-home,.opening-summary{border:1px solid var(--line);border-radius:8px;background:var(--panel);padding:clamp(24px,5vw,64px);text-align:center}
.opening-home h2,.opening-summary h2{font-size:clamp(26px,3.5vw,38px);line-height:1.2;margin:16px auto;max-width:600px}
.opening-home>p,.opening-summary>p{font-size:16px;color:var(--muted)}
.opening-home .opening-rule{max-width:490px;margin:22px auto 28px;line-height:1.7}
.opening-hud{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:18px}
.opening-hud span{display:block;color:var(--muted);font-size:14px}.opening-hud strong{font-size:24px;line-height:1.5;font-variant-numeric:tabular-nums}#opening-score,#opening-points{color:var(--accent)}
.opening-stage{position:relative;aspect-ratio:16/9;background:#080c0e;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.opening-stage video{display:block;width:100%;height:100%;object-fit:contain}
.opening-page main[data-state=answer] .opening-stage,.opening-page main[data-state=miss] .opening-stage{aspect-ratio:auto;min-height:120px}
.opening-page main[data-state=feedback] .opening-stage,.opening-page main[data-state=feedback] .opening-sound{display:none}
.opening-cover{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:16px;text-align:center}
.opening-cover h2{font-size:clamp(22px,3vw,32px);margin:4px 0 24px}.opening-cover .eyebrow{margin:0 0 12px}
.opening-sound{display:flex;gap:12px;align-items:center;color:var(--muted);font-size:14px;min-height:54px;flex-wrap:wrap}.opening-sound input{min-height:44px;width:120px;accent-color:var(--accent)}.opening-sound span{margin-left:auto}
.opening-controls{max-width:560px;margin:8px auto 28px;text-align:center}#opening-form>label{display:block;font-size:20px;font-weight:650;text-align:left;margin-bottom:10px}
#opening-answer{width:100%;min-height:48px;background:#10161b;color:var(--ink);border:1px solid var(--control-border);border-radius:5px;font-size:16px;padding:12px 14px}
#opening-submit,#opening-next-clue,#opening-next{width:100%;margin-top:12px}#opening-status{color:var(--accent);font-size:16px;min-height:24px;margin:14px 0}#opening-status[data-error=true]{color:var(--error)}
#opening-pass{display:block;margin:12px auto;font-size:14px}#opening-feedback h2{font-size:28px;margin:8px 0}#opening-details,#opening-source{font-size:15px;color:var(--muted)}
.opening-final-score{font-size:clamp(40px,7vw,64px)!important;color:var(--accent)!important;font-weight:700;margin:24px 0 8px}
#opening-results{list-style:none;padding:0;margin:28px 0;text-align:left;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}#opening-results li{display:flex;justify-content:space-between;gap:14px;padding:14px;border:1px solid var(--line);border-radius:5px;font-size:15px}#opening-results small{display:block;color:var(--muted);font-size:14px}#opening-results strong{color:var(--accent);white-space:nowrap}
@media(max-width:600px){.opening-intro{display:block}.opening-intro>p{max-width:none}.opening-hud{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.opening-hud span{font-size:14px}.opening-hud strong{font-size:20px}.opening-cover h2{margin-bottom:14px}.opening-sound span{width:100%;margin:-8px 0 4px}.opening-sound{gap:8px}#opening-results{grid-template-columns:1fr}.opening-home{padding:28px 20px}.opening-summary{padding:24px 16px}}