:root{color:#0b1426;background:#f5f8ff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--blue: #0052ff;--ink: #0b1426;--muted: #66708a;--line: #dce6fb;--surface: rgba(255, 255, 255, .86);--green: #17c964;--red: #ef4444;--gold: #d6a82f}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,#0052ff1f,#fff0 260px),#f5f8ff}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}.shell,.app-shell{width:min(100%,480px);min-height:100vh;margin:0 auto}.connect-shell{display:flex;flex-direction:column;justify-content:center;gap:16px;padding:20px}.brand-panel{min-height:330px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:28px;color:var(--ink);border-radius:8px;background:radial-gradient(circle at 72% 20%,rgba(0,82,255,.14),transparent 28%),linear-gradient(145deg,#fff,#eaf2ff 78%);box-shadow:0 24px 60px #0052ff29;text-align:center}.rank-orb{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--blue);font-weight:900;font-size:34px;margin-bottom:34px}.brand-logo{display:block;flex:0 0 auto;object-fit:contain}.brand-logo-large{width:128px;height:auto}.brand-panel h1{margin:0;font-size:44px;line-height:1;letter-spacing:0}.lead{margin:14px 0 0;color:var(--muted);line-height:1.5;max-width:310px}.eyebrow{margin:0 0 8px;color:var(--blue);text-transform:uppercase;font-size:12px;font-weight:900;letter-spacing:0}.brand-panel .eyebrow{color:var(--blue)}.surface{background:var(--surface);border:1px solid rgba(190,207,245,.82);border-radius:8px;padding:16px;box-shadow:0 16px 36px #0a235814}.auth-panel h2,.section-title h3{margin:0}.connector-list,.screen,.history-list,.analysis-list{display:flex;flex-direction:column;gap:12px}.primary-button,.ghost-button,.danger-button{min-height:48px;width:100%;border:0;border-radius:8px;padding:0 16px;display:inline-flex;align-items:center;justify-content:space-between;gap:10px;text-decoration:none;font-weight:850;cursor:pointer}.primary-button{color:#fff;background:var(--blue)}.primary-button.centered{justify-content:center}.ghost-button{color:var(--ink);background:#edf3ff}.ghost-button.centered{justify-content:center}.danger-button{color:#fff;background:#c83232;justify-content:center}.primary-button:disabled,.ghost-button:disabled,.danger-button:disabled{opacity:.62}.error-text{margin:10px 0 0;color:#bd2b2b;font-size:13px;font-weight:700}.muted{color:var(--muted);margin:0}.app-shell{padding:calc(12px + env(safe-area-inset-top)) 12px calc(84px + env(safe-area-inset-bottom))}.app-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:8px 2px 14px;background:linear-gradient(180deg,#f5f8ff 72%,#f5f8ff00)}.header-brand{display:flex;align-items:center;gap:10px}.header-logo{width:42px;height:auto}.wallet-chip,.icon-button{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:999px;min-height:38px;padding:0 12px;display:inline-flex;align-items:center;gap:8px;font-weight:800}.icon-button{width:38px;padding:0;justify-content:center}.screen{padding:2px 0 16px}.hero-band,.result-band{border-radius:8px;min-height:164px;padding:20px;display:flex;align-items:flex-end;justify-content:space-between;color:#fff;background:linear-gradient(135deg,#0052fff5,#091636fa),#0052ff}.tier-button{width:100%;border:0;text-align:left;cursor:pointer}.hero-band h2,.result-band h2{margin:0;font-size:38px;letter-spacing:0}.hero-band p,.result-band p{margin:8px 0 0;color:#ffffffc2}.rank-orb{margin:0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:8px}.stats-grid.tight{grid-template-columns:repeat(3,minmax(0,1fr))}.stats-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.stat{min-height:74px;border:1px solid var(--line);border-radius:8px;padding:10px;background:#fff}.stat span,.history-row small,.leaderboard-row small,.nft-tile small,.game-topline span{color:var(--muted);font-size:12px;font-weight:700}.stat strong{display:block;margin-top:8px;font-size:20px}.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.difficulty-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.difficulty-card{min-height:110px;border:1px solid color-mix(in srgb,var(--difficulty-color, var(--blue)) 38%,var(--line));border-radius:8px;background:linear-gradient(180deg,color-mix(in srgb,var(--difficulty-color, var(--blue)) 9%,white),#fff 72%);color:var(--ink);display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;padding:14px;text-align:left;font-weight:900}.difficulty-card svg,.difficulty-label,.difficulty-inline{color:var(--difficulty-color, var(--blue))}.difficulty-card small{color:var(--muted);font-weight:800}.history-row,.leaderboard-row{min-height:64px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff}.history-row strong,.leaderboard-row strong{display:block}.result-pill,.status-dot{border-radius:999px;padding:6px 9px;font-size:12px;font-weight:900;text-transform:uppercase}.result-pill.win,.result-band.win{background:linear-gradient(135deg,#0f9f56,#093821);color:#fff}.result-pill.loss,.result-band.loss{background:linear-gradient(135deg,#da3b3b,#371010);color:#fff}.result-pill.draw,.result-band.draw{background:linear-gradient(135deg,#0052ff,#102a68);color:#fff}.result-band.neutral{background:linear-gradient(135deg,#64748b,#1f2937);color:#fff}.season-countdown{min-height:40px;display:flex;align-items:center;gap:8px;margin-bottom:12px;border:1px solid rgba(0,82,255,.18);border-radius:8px;padding:0 12px;background:linear-gradient(135deg,#0052ff1a,#ffffffe6);color:var(--blue);font-size:13px;font-weight:900}.game-topline{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:10px}.board-frame{align-self:center;aspect-ratio:1}.move-feedback,.check-strip,.thinking-strip{min-height:44px;display:flex;align-items:center;justify-content:center;border-radius:8px;padding:0 14px;font-size:14px;font-weight:900}.move-feedback{color:#8f1d1d;background:#fff0f0;border:1px solid #ffc7c7}.check-strip{color:#8a3412;background:#fff4d6;border:1px solid #ffd782}.thinking-strip{color:#17407f;background:#e9f1ff;border:1px solid #cfe0ff}.status-dot.active{color:#064e3b;background:#dffcec}.status-dot.completed{color:#173166;background:#e7efff}.analysis-list p{margin:0;padding-bottom:12px;border-bottom:1px solid var(--line);color:#26324d;line-height:1.45}.analysis-list p:last-child{border-bottom:0;padding-bottom:0}.share-card,.nft-preview{width:100%;display:block;border-radius:8px;border:1px solid var(--line);background:#fff}.nft-preview{max-height:520px;object-fit:contain}.nft-detail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.success-strip{min-height:50px;border-radius:8px;background:#e5fbea;color:#0c6b3c;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:900}.segmented{display:flex;gap:6px;overflow-x:auto;padding-bottom:6px}.segmented button{min-height:38px;white-space:nowrap;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);padding:0 12px;font-size:13px;font-weight:850;text-transform:capitalize}.segmented button.active{color:#fff;background:var(--segment-color, var(--blue));border-color:var(--segment-color, var(--blue))}.leaderboard-list,.gallery-grid{display:grid;gap:10px}.rank{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#e9f0ff;color:var(--difficulty-color, var(--blue));font-weight:900}.leaderboard-row{border-left:4px solid var(--difficulty-color, var(--blue))}.empty{padding:18px;text-align:center}.profile-head{background:linear-gradient(135deg,#ffffffe6,#eaf2ffe6),#fff}.rate-list{display:grid;gap:10px}.rate-list div{min-height:44px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.rate-list div:last-child{border-bottom:0}.gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.nft-tile{border:1px solid var(--line);border-radius:8px;background:#fff;padding:10px}.nft-tile img{width:100%;aspect-ratio:3 / 4;object-fit:cover;border-radius:6px;border:1px solid var(--line)}.nft-tile strong{display:block;margin-top:8px}.royal-piece{display:block;pointer-events:none;filter:drop-shadow(0 5px 5px rgba(0,14,48,.22))}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:70;display:flex;align-items:flex-end;justify-content:center;padding:12px 12px calc(12px + env(safe-area-inset-bottom));background:#050f236b}.bottom-sheet{width:min(100%,456px);border:1px solid var(--line);border-radius:8px;background:#fff;padding:16px;box-shadow:0 24px 70px #00144647}.ladder-list{display:grid;gap:8px}.ladder-list div{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px;border:1px solid var(--line);border-radius:8px;background:#f8fbff}.ladder-list div.active{color:#fff;background:var(--blue);border-color:var(--blue)}.ladder-list span,.ladder-list strong{font-size:14px}.bottom-nav{position:fixed;left:50%;bottom:0;z-index:40;width:min(100%,480px);transform:translate(-50%);display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:10px 10px calc(10px + env(safe-area-inset-bottom));background:#ffffffeb;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.bottom-nav button{min-height:54px;border:0;border-radius:8px;background:transparent;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:12px;font-weight:850}.bottom-nav button.active{color:var(--blue);background:#eaf1ff}.toast{position:fixed;left:50%;top:calc(12px + env(safe-area-inset-top));transform:translate(-50%);z-index:60;width:min(calc(100% - 24px),456px);border:1px solid #ffc2c2;border-radius:8px;background:#fff;color:#a31d1d;padding:12px 14px;box-shadow:0 16px 38px #5d161626;font-weight:800;text-align:left}@media(min-width:481px){body{background:linear-gradient(90deg,#0052ff14,#f0c86214),#eef4ff}.app-shell{border-left:1px solid var(--line);border-right:1px solid var(--line);background:#f5f8ff}}