:root{--vh: 1vh}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;overscroll-behavior:none;background-color:var(--bg, #0a0e1a)}html,body{touch-action:manipulation;overflow-x:hidden;max-width:100%}body{-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;user-select:none;-webkit-user-select:none;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);box-sizing:border-box}input,textarea,[contenteditable],.selectable{user-select:text;-webkit-user-select:text;-webkit-touch-callout:default}button,[role=button],a,label,summary{touch-action:manipulation}button,input,select,textarea{font-family:inherit;font-size:inherit}input,textarea,select{font-size:max(16px,1em)}button,[role=button]{min-height:44px;min-width:44px;cursor:pointer}.board,.field,canvas,.drag-surface{touch-action:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}:root{--bg: #0a0e1a;--panel: #111731;--panel-2: #171e3d;--line: #26304f;--ink: #e9edff;--ink-dim: #9aa6cc;--accent: #ffd166;--red: #ff5a3c;--green: #7ddc3a;--blue: #3ad4ff;--white-beam: #fff6e0;--radius: 14px}[hidden]{display:none!important}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}#app{min-height:100vh;min-height:calc(var(--vh) * 100);display:flex;flex-direction:column}.main-content{flex:1 0 auto;display:flex;flex-direction:column;min-height:0}.site-footer{flex-shrink:0;padding:10px 16px 14px;text-align:center;font-size:12px;color:var(--ink-dim)}.site-footer a{color:var(--ink-dim);text-decoration:underline;text-underline-offset:2px}.site-footer a:hover{color:var(--accent)}button{font-family:inherit;border-radius:10px;border:1px solid var(--line);background:var(--panel-2);color:var(--ink);padding:10px 16px;font-size:15px;font-weight:600;transition:transform .08s ease,background .15s ease,border-color .15s ease}button:hover{background:#1e2750;border-color:#3a4675}button:active{transform:scale(.96)}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:linear-gradient(180deg,#3a67ff,#2a4ad6);border-color:#5b83ff;color:#fff}.btn-primary:hover{background:linear-gradient(180deg,#4a75ff,#3556e0)}.btn-ghost{background:transparent}.icon-btn{padding:8px;min-width:44px;min-height:44px;font-size:16px;line-height:1;display:inline-flex;align-items:center;justify-content:center}#hud{display:flex;align-items:center;gap:8px;padding:8px 12px;flex-wrap:wrap}.hud-title{font-size:14px;font-weight:700;letter-spacing:.02em;white-space:nowrap}.hud-stats{display:flex;gap:6px;margin-left:auto;align-items:center}.stat{background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:5px 11px;font-size:13px;font-variant-numeric:tabular-nums;white-space:nowrap}.stat b{color:var(--accent)}.stat.is-under b{color:var(--green)}.hud-actions{display:flex;gap:6px}#stage{flex:1 1 auto;position:relative;min-height:0;margin:4px 8px 8px}#board{position:absolute;inset:0;width:100%;height:100%;touch-action:none;border-radius:var(--radius)}.overlay{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:18px;background:#060914c7;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);overflow-y:auto}.panel{width:min(460px,100%);background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 24px 60px #00000080;animation:rise .22s ease-out}@keyframes rise{0%{opacity:0;transform:translateY(10px)}}.panel h1{margin:0;font-size:34px;letter-spacing:-.02em;background:linear-gradient(90deg,var(--red),var(--accent),var(--green),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}.panel h2{margin:0 0 10px;font-size:21px}.tagline{margin:6px 0 18px;color:var(--ink-dim);font-size:14px;line-height:1.5}.panel p{line-height:1.6;font-size:14px;color:#cdd6f5}.menu-buttons{display:flex;flex-direction:column;gap:9px}.menu-buttons button{width:100%;padding:13px;font-size:16px}.menu-row{display:flex;gap:9px}.menu-row button{flex:1}.panel-close{margin-top:16px;width:100%}.rule{display:flex;gap:12px;align-items:flex-start;margin-bottom:13px}.rule-key{flex-shrink:0;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:17px;background:var(--panel-2);border:1px solid var(--line)}.rule-text{font-size:14px;line-height:1.5;color:#cdd6f5}.rule-text b{color:var(--ink)}.swatch-red{color:var(--red)}.swatch-green{color:var(--green)}.swatch-blue{color:var(--blue)}.swatch-white{color:var(--white-beam)}.controls-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-dim);line-height:1.6}kbd{background:var(--panel-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:1px 5px;font-size:11px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:16px 0}.result-cell{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:12px 6px;text-align:center}.result-cell .big{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}.result-cell .lbl{font-size:11px;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.06em;margin-top:2px}.verdict{text-align:center;font-size:15px;font-weight:600;padding:9px;border-radius:10px;margin-bottom:4px}.verdict.under{background:#7ddc3a24;color:var(--green);border:1px solid rgba(125,220,58,.35)}.verdict.par{background:#ffd16624;color:var(--accent);border:1px solid rgba(255,209,102,.35)}.verdict.over{background:#3ad4ff1a;color:var(--blue);border:1px solid rgba(58,212,255,.28)}.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%);background:var(--panel-2);border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-size:14px;z-index:100;animation:rise .2s ease-out;pointer-events:none}.about-note{font-size:12px;color:var(--ink-dim);line-height:1.6;border-top:1px solid var(--line);padding-top:12px;margin-top:12px}.settings-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line);font-size:14px}.settings-row:first-of-type{border-top:none}@media(max-width:430px){.panel{padding:18px}.panel h1{font-size:28px}#hud{padding:6px 8px;gap:6px}.hud-title{font-size:13px}.stat{padding:4px 9px;font-size:12px}#stage{margin:2px 4px 4px}}@media(prefers-reduced-motion:reduce){.panel{animation:none}button:active{transform:none}}