/* speed.css — Speed Match arena, blitz HUD, and result card */
.speed-page{background:#f8fafc;color:#1e293b}
.speed-wrap{max-width:420px;margin:0 auto;padding:1rem}

.speed-hud{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;font-family:'JetBrains Mono',monospace;font-size:.9rem;font-weight:600}
.speed-timer-bar-wrap{width:100%;height:6px;background:#e2e8f0;border-radius:99px;overflow:hidden;margin:.5rem 0 1rem}
.speed-timer-bar{height:100%;background:#F43F5E;width:100%;transition:width .1s linear}
.speed-timer-bar.urgent{background:#ef4444;animation:pulse .5s infinite alternate}

.speed-arena{background:#ffffff;border:2px solid #e2e8f0;border-radius:16px;padding:1.5rem 1rem;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,0.04);position:relative;overflow:hidden;transition:border-color .15s}
.speed-arena.flash-good{border-color:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,0.25)}
.speed-arena.flash-bad{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,0.25);animation:shake .2s ease-in-out}

.speed-symbols{display:flex;justify-content:center;align-items:center;gap:2.5rem;font-size:3.75rem;min-height:90px;user-select:none;touch-action:manipulation}
.speed-symbol{display:inline-flex;align-items:center;justify-content:center;width:80px;height:80px;background:#f1f5f9;border-radius:12px;border:1px solid #cbd5e1;box-shadow:inset 0 2px 4px rgba(0,0,0,0.04)}

.speed-prompt{font-size:.95rem;color:#64748b;margin-top:.75rem;font-weight:500}
.speed-streak{display:inline-block;margin-top:.5rem;padding:.2rem .6rem;background:#F43F5E18;color:#F43F5E;border-radius:99px;font-size:.8rem;font-weight:700;font-family:'JetBrains Mono',monospace}

.speed-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:1rem 0}
.btn-choice{min-height:56px;font-size:1.15rem;font-weight:800;border:none;border-radius:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:transform .08s,filter .1s;box-shadow:0 3px 6px rgba(0,0,0,0.08)}
.btn-choice:active{transform:scale(0.97)}
.btn-same{background:#22c55e;color:#ffffff}
.btn-same:hover{filter:brightness(1.05)}
.btn-diff{background:#ef4444;color:#ffffff}
.btn-diff:hover{filter:brightness(1.05)}

.speed-key-hint{text-align:center;font-size:.78rem;color:#94a3b8;font-family:'JetBrains Mono',monospace;margin-bottom:1rem}

.speed-start-card{background:#ffffff;border:2px solid #e2e8f0;border-radius:16px;padding:2rem 1.5rem;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,0.04)}
.speed-start-card h2{font-size:1.35rem;font-weight:800;margin-bottom:.5rem;color:#0f172a}
.speed-start-card p{font-size:.9rem;color:#64748b;margin-bottom:1.25rem;line-height:1.5}
.btn-start{background:#F43F5E;color:#ffffff;padding:.85rem 1.75rem;font-size:1.05rem;font-weight:800;border-radius:12px;border:none;cursor:pointer;width:100%;min-height:48px}

.speed-result{background:#ffffff;border:2px solid #e2e8f0;border-radius:16px;padding:1.75rem 1.25rem;text-align:center;margin-top:1rem;box-shadow:0 8px 24px rgba(0,0,0,0.06);animation:pop .25s ease-out}
.speed-result[hidden]{display:none}
.speed-result h2{font-size:1.4rem;font-weight:800;color:#0f172a;margin-bottom:.25rem}
.speed-badge{display:inline-block;padding:.25rem .75rem;background:#F43F5E22;color:#F43F5E;border-radius:99px;font-size:.8rem;font-weight:700;margin-bottom:1rem}
.speed-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:#f8fafc;padding:.75rem;border-radius:12px;margin-bottom:1.25rem}
.speed-stat-box .val{font-size:1.35rem;font-weight:800;font-family:'JetBrains Mono',monospace;color:#0f172a}
.speed-stat-box .lbl{font-size:.7rem;color:#64748b;text-transform:uppercase;font-weight:600;margin-top:2px}

.speed-result-actions{display:flex;flex-direction:column;gap:8px}
.speed-result-actions .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center}
.btn-challenge{background:#0f172a;color:#ffffff}
.btn-copy{background:#f1f5f9;color:#334155;border:1px solid #cbd5e1}
#speed-share-status{font-size:.8rem;color:#16a34a;font-family:'JetBrains Mono',monospace;min-height:1.2em;margin-top:.25rem}

.speed-guide{max-width:420px;margin:2rem auto 0;padding:1.25rem 1rem;background:#ffffff;border:1px solid #e2e8f0;border-radius:16px;line-height:1.6}
.speed-guide h2{font-size:1.2rem;font-weight:800;margin-bottom:.75rem;color:#0f172a}
.speed-guide h3{font-size:1rem;font-weight:700;margin:1.25rem 0 .5rem;color:#1e293b}
.speed-guide p{font-size:.875rem;color:#475569;margin-bottom:.75rem}
.speed-guide ul{padding-left:1.25rem;margin-bottom:.75rem}
.speed-guide li{font-size:.875rem;color:#475569;margin-bottom:.4rem}
.speed-guide a{color:#F43F5E;font-weight:600;text-decoration:none}
.speed-guide a:hover{text-decoration:underline}

@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@keyframes pop{0%{transform:scale(0.96);opacity:0}100%{transform:scale(1);opacity:1}}
@keyframes pulse{0%{opacity:1}100%{opacity:0.6}}

/* --- 2026-09-28 upgrade: combo meter, levels, pops, countdown, rules --- */
.speed-arena{touch-action:manipulation;-webkit-user-select:none;user-select:none}
#speed-play-area{touch-action:manipulation;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.speed-meter{display:flex;align-items:center;gap:.5rem;margin:-.5rem 0 .9rem;font-family:'JetBrains Mono',monospace;font-size:.78rem;font-weight:700}
.speed-mult{min-width:2.4em;padding:.15rem .45rem;border-radius:8px;background:#e2e8f0;color:#334155;text-align:center;transition:background .2s,color .2s,transform .15s}
.speed-mult[data-mult="2"]{background:#fde68a;color:#92400e}
.speed-mult[data-mult="3"]{background:#fdba74;color:#7c2d12}
.speed-mult[data-mult="4"]{background:#F43F5E;color:#fff;box-shadow:0 0 0 3px #F43F5E33}
.speed-mult-bar{flex:1;height:6px;border-radius:99px;background:#e2e8f0;overflow:hidden}
.speed-mult-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,#f59e0b,#F43F5E);border-radius:99px;transition:width .15s ease-out}
.speed-level{color:#64748b;white-space:nowrap}
.speed-symbol{transition:color .1s}
.speed-symbol.enter{animation:sym-in .14s ease-out}
.speed-arena.level-up{animation:level-up .5s ease-out}
.speed-pops{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.speed-pop{position:absolute;top:38%;transform:translateX(-50%);font-family:'JetBrains Mono',monospace;font-weight:800;font-size:1.05rem;white-space:nowrap;animation:pop-up .75s ease-out forwards;text-shadow:0 1px 0 #fff}
.speed-pop.good{color:#16a34a}
.speed-pop.fast{color:#d97706}
.speed-pop.bad{color:#dc2626}
.speed-count{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.9);font-size:3.5rem;font-weight:800;color:#F43F5E;font-family:'JetBrains Mono',monospace}
.speed-count[hidden]{display:none}
.speed-count.tick{animation:count-in .45s ease-out}
.btn-choice:focus-visible,.btn:focus-visible{outline:3px solid #0f172a;outline-offset:2px}
.btn-choice{user-select:none;-webkit-user-select:none}
.speed-rules{list-style:none;text-align:left;margin:0 auto 1rem;max-width:300px;font-size:.84rem;color:#475569;line-height:1.45}
.speed-rules li{padding:.18rem 0 .18rem 1.25rem;position:relative}
.speed-rules li::before{content:"›";position:absolute;left:.35rem;color:#F43F5E;font-weight:800}
.speed-rules b{color:#0f172a}
.speed-start-best{font-family:'JetBrains Mono',monospace;font-size:.8rem!important;color:#F43F5E!important;font-weight:700;margin-bottom:.9rem!important}
.speed-start-best[hidden]{display:none}
.speed-res-points{margin:.25rem 0 1rem}
.speed-res-points .pts{display:flex;align-items:baseline;justify-content:center;gap:.4rem}
.speed-res-points .pts-val{font-size:2.6rem;font-weight:800;font-family:'JetBrains Mono',monospace;color:#F43F5E;line-height:1}
.speed-res-points .pts-lbl{font-size:.8rem;text-transform:uppercase;font-weight:700;color:#64748b}
.speed-res-points .pts-sub{font-size:.78rem;color:#64748b;margin-top:.35rem;font-family:'JetBrains Mono',monospace}
.speed-goal{font-size:.85rem;color:#334155;background:#fff1f2;border:1px dashed #fda4af;border-radius:10px;padding:.55rem .75rem;margin-bottom:1rem}

@keyframes sym-in{0%{transform:scale(.82);opacity:.35}100%{transform:scale(1);opacity:1}}
@keyframes pop-up{0%{opacity:0;transform:translate(-50%,6px) scale(.9)}20%{opacity:1}100%{opacity:0;transform:translate(-50%,-46px) scale(1.05)}}
@keyframes count-in{0%{transform:scale(1.5);opacity:0}100%{transform:scale(1);opacity:1}}
@keyframes level-up{0%{box-shadow:0 0 0 0 rgba(244,63,94,.55)}100%{box-shadow:0 0 0 18px rgba(244,63,94,0)}}

@media (max-width:360px){.speed-symbols{gap:1.25rem}.speed-symbol{width:72px;height:72px}}
@media (prefers-reduced-motion:reduce){
  .speed-symbol.enter,.speed-arena.flash-bad,.speed-arena.level-up,.speed-count.tick,.speed-result,.speed-timer-bar.urgent{animation:none}
  .speed-pop{animation:none;top:12%}
  .speed-timer-bar,.speed-mult-fill{transition:none}
}
@media (max-width:420px){.btn-choice{font-size:1rem;padding:0 .4rem}}