:root{--bg: #0c1018;--bg-elev: #141a26;--bg-elev-2: #1b2230;--border: #283142;--border-strong: #36425a;--text: #e7ecf3;--text-dim: #9aa7bd;--text-faint: #6b7689;--accent: #5eead4;--accent-2: #7c9cff;--radius: 14px;--radius-sm: 9px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;background-image:radial-gradient(1100px 500px at 18% -10%,rgba(94,234,212,.1),transparent 60%),radial-gradient(900px 500px at 95% 0%,rgba(124,156,255,.12),transparent 55%);background-attachment:fixed}a{color:inherit;text-decoration:none}h1{line-height:1.2;margin:0;letter-spacing:-.02em}.page{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:640px;width:100%;margin:0 auto;padding:18px 24px}.topbar__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}.topbar__mark{font-size:20px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.4))}.topbar__link{font-family:var(--mono);font-size:14px;color:var(--text-dim);transition:color .15s ease}.topbar__link:hover{color:var(--accent)}.wrap{flex:1 0 auto;width:100%;max-width:640px;margin:0 auto;padding:12px 24px 48px;display:flex;flex-direction:column;align-items:center}.intro{text-align:center;margin-bottom:28px}.intro__title{font-size:clamp(34px,8vw,52px)}.intro__lead{margin:14px auto 0;max-width:52ch;color:var(--text-dim);font-size:16px}.footer{flex-shrink:0;max-width:640px;width:100%;margin:0 auto;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--border);color:var(--text-faint);font-size:14px}.footer a{color:var(--text-dim);font-weight:500}.footer a:hover{color:var(--accent)}.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:transform .12s ease,background .15s ease,border-color .15s ease,filter .15s ease}.btn:active{transform:translateY(1px)}.btn--primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#07120f}.btn--primary:hover{filter:brightness(1.06)}.btn--ghost{border-color:var(--border-strong);color:var(--text);background:var(--bg-elev)}.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}.mm{display:flex;flex-direction:column;align-items:center;gap:22px;width:100%}.mm__bar{width:min(440px,92vw);display:flex;align-items:center;justify-content:space-between;gap:16px}.mm__scores{display:flex;gap:12px}.mm__score{display:flex;flex-direction:column;min-width:88px;padding:8px 16px;border-radius:var(--radius-sm);background:var(--bg-elev);border:1px solid var(--border)}.mm__score-label{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint)}.mm__score-value{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text)}.mm__board{position:relative;width:min(440px,92vw);aspect-ratio:1;padding:12px;border-radius:var(--radius);background:var(--bg-elev-2);border:1px solid var(--border-strong);touch-action:none;-webkit-user-select:none;user-select:none}.mm__cells,.mm__tiles{position:absolute;top:12px;right:12px;bottom:12px;left:12px}.mm__cells{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:12px}.mm__cell{border-radius:var(--radius-sm);background:var(--bg)}.mm__tile{position:absolute;top:0;left:0;width:25%;height:25%;padding:6px;transform:translate(calc(var(--c) * 100%),calc(var(--r) * 100%));transition:transform .13s ease;will-change:transform}.mm__tile:after{content:"";position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-radius:var(--radius-sm);background:linear-gradient(150deg,var(--from),var(--to));border:1px solid color-mix(in srgb,var(--ink) 30%,transparent);box-shadow:0 4px 14px #00000059,inset 0 0 18px color-mix(in srgb,var(--ink) 12%,transparent)}.mm__emoji,.mm__value{position:relative;z-index:1;display:flex;justify-content:center}.mm__emoji{align-items:flex-end;height:60%;font-size:clamp(28px,9vw,44px);line-height:1;filter:drop-shadow(0 2px 4px rgba(0,0,0,.4))}.mm__value{height:40%;align-items:center;font-family:var(--mono);font-weight:700;font-size:clamp(11px,3vw,14px);color:var(--ink)}.mm__tile--new{animation:mm-pop-in .13s ease}.mm__tile--merged{animation:mm-pop .16s ease}@keyframes mm-pop-in{0%{opacity:0;transform:translate(calc(var(--c) * 100%),calc(var(--r) * 100%)) scale(.3)}}@keyframes mm-pop{0%{transform:translate(calc(var(--c) * 100%),calc(var(--r) * 100%)) scale(.8)}55%{transform:translate(calc(var(--c) * 100%),calc(var(--r) * 100%)) scale(1.16)}}.mm__overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:24px;text-align:center;border-radius:var(--radius);background:#0c1018d6;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:mm-fade .2s ease}@keyframes mm-fade{0%{opacity:0}}.mm__overlay-title{margin:0;font-size:26px;font-weight:700}.mm__overlay-sub{margin:0;color:var(--text-dim)}.mm__overlay-actions{margin-top:6px;display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.mm__ladder{width:min(440px,92vw);display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.mm__ladder-item{display:flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;background:var(--bg-elev);border:1px solid var(--border);font-size:13px;color:var(--text-dim)}.mm__ladder-emoji{font-size:15px}.mm__ladder-name{font-family:var(--mono)}