@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Inter:wght@400;500;600;700;800&display=swap');
:root{--bg:#f4f5f8;--surface:#fff;--surface2:#eef0f5;--text:#171923;--muted:#6b7080;--line:#dde0e8;--accent:#635bff;--accent2:#8b5cf6;--good:#16a34a;--shadow:0 20px 60px rgba(25,30,50,.10);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% -10%,rgba(99,91,255,.12),transparent 35%),var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif}body.retro{--bg:#070b0a;--surface:#0c1410;--surface2:#101c15;--text:#b8ffc8;--muted:#6f9c7b;--line:#1d3d28;--accent:#39ff88;--accent2:#00d9ff;--shadow:0 0 35px rgba(57,255,136,.12);font-family:'DM Mono',monospace;background:radial-gradient(circle at 50% 0%,rgba(57,255,136,.10),transparent 40%),#070b0a}body.retro:before{content:"";position:fixed;inset:0;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(255,255,255,.025) 0 1px,transparent 1px 4px);z-index:20;mix-blend-mode:screen}.header{position:sticky;top:0;z-index:30;height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;background:color-mix(in srgb,var(--surface) 76%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.logo{font-weight:800;color:var(--text);text-decoration:none;font-size:19px;letter-spacing:-.03em}.logo-mark{display:inline-grid;place-items:center;width:30px;height:30px;margin-right:8px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white}.header nav{display:flex;align-items:center;gap:8px}.header nav a{color:var(--muted);text-decoration:none;font-size:13px;margin:0 8px}.btn,.icon-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;transition:.2s transform,.2s background}.btn:hover,.icon-btn:hover{transform:translateY(-2px)}.btn.primary{border-color:transparent;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}.btn.secondary{background:var(--surface2)}.btn.ghost{background:transparent}.icon-btn{width:42px;height:40px;padding:0}.hidden{display:none!important}.hero,.section{max-width:1180px;margin:auto;padding:78px 24px}.hero{min-height:560px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:50px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--accent);margin-bottom:12px}.hero h1{font-size:clamp(52px,7vw,92px);line-height:.95;letter-spacing:-.07em;margin:0 0 25px}.hero h1 em{font-style:normal;color:var(--accent)}.hero p{max-width:610px;color:var(--muted);font-size:17px;line-height:1.7}.actions{display:flex;gap:10px;margin-top:30px}.hero-orbit{height:390px;position:relative;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:radial-gradient(circle,var(--surface2),transparent 63%);box-shadow:var(--shadow)}.hero-orbit:before,.hero-orbit:after{content:"";position:absolute;border:1px dashed var(--line);border-radius:50%;width:70%;height:70%}.hero-orbit:after{width:45%;height:45%}.orbit-card{z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;width:170px;height:170px;border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(12px);border-radius:32px;box-shadow:var(--shadow);font-size:48px}.orbit-card b{font-size:25px}.orbit-card span{font-size:11px;color:var(--muted)}.orbit-card.small{position:absolute;right:7%;bottom:8%;width:115px;height:115px;font-size:28px}.section{padding-top:50px;padding-bottom:50px}.section-top{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}.section h2{font-size:38px;letter-spacing:-.05em;margin:0}.filters{display:flex;gap:8px}.filters input,.filters select,input,select,textarea{font:inherit;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;padding:12px 13px;outline:none}.filters input:focus,input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)}.filters input{width:230px}.game-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.game-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px;min-height:190px;cursor:pointer;transition:.2s transform,.2s box-shadow,.2s border-color;box-shadow:0 8px 30px rgba(20,25,40,.04);display:flex;flex-direction:column}.game-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}.game-icon{font-size:34px}.game-card h3{margin:14px 0 6px;font-size:17px}.game-card p{color:var(--muted);font-size:12px;line-height:1.55;margin:0}.tag{display:inline-block;font-size:10px;color:var(--accent);margin-top:auto;padding-top:15px}.split{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:stretch}.challenge-meta{display:flex;gap:18px;margin:22px 0;color:var(--muted);font-size:13px}.challenge-meta span:first-child{color:var(--accent);font-weight:800}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:0 8px 30px rgba(20,25,40,.04);overflow:hidden}.panel-head{display:flex;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.panel-head a{color:var(--accent);text-decoration:none;font-size:12px}.leaderboard-mini{min-height:260px}.board-row{display:grid;grid-template-columns:44px 1fr 90px;gap:10px;padding:13px 20px;border-bottom:1px solid var(--line);font-size:13px}.board-row span:last-child{text-align:right;font-weight:800}.tabs{display:flex;gap:5px;flex-wrap:wrap}.tabs button{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:10px;padding:9px 12px;cursor:pointer}.tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.table-wrap{overflow:auto}.table-wrap table{width:100%;border-collapse:collapse;min-width:650px}.table-wrap th,.table-wrap td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);font-size:13px}.table-wrap th{font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.empty{padding:30px;text-align:center;color:var(--muted)}.profile-head{display:flex;align-items:center;gap:18px;margin-bottom:30px}.avatar{width:70px;height:70px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;font-size:30px;font-weight:800}.profile-head h2{margin:0}.profile-head p{margin:6px 0;color:var(--muted);font-size:12px}.profile-actions{margin-left:auto;display:flex;gap:8px}.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:20px}.stat{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:18px}.stat b{display:block;font-size:28px}.stat span{font-size:11px;color:var(--muted)}.profile-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.achievement-grid{padding:18px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.achievement{border:1px solid var(--line);border-radius:14px;padding:12px}.achievement.locked{opacity:.35}.achievement b{display:block;font-size:13px}.achievement span{font-size:10px;color:var(--muted)}.score-row{display:flex;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);font-size:13px}.modal{position:fixed;inset:0;z-index:50;background:rgba(5,8,15,.65);display:grid;place-items:center;padding:20px;backdrop-filter:blur(8px)}.modal-card{width:min(450px,100%);max-height:92vh;overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:28px;position:relative;box-shadow:0 30px 100px rgba(0,0,0,.3)}.modal-card.game-modal{width:min(820px,100%)}.close{position:absolute;right:16px;top:14px;border:0;background:transparent;color:var(--muted);font-size:27px;cursor:pointer}.modal-card h2{font-size:32px;margin:8px 0 15px}.modal-card form{display:grid;gap:15px}.modal-card label{display:grid;gap:7px;font-size:12px;font-weight:700}.full{width:100%}.muted{color:var(--muted)}.text-btn{margin:16px auto 0;display:block;border:0;background:none;color:var(--accent);cursor:pointer}.game-head{display:flex;align-items:center;justify-content:space-between;padding-right:35px}.game-head h2{margin-bottom:0}.game-score{font-size:30px;font-weight:800;color:var(--accent)}.game-help{margin-top:12px;font-size:12px}.canvas-wrap{display:grid;place-items:center;background:var(--surface2);border-radius:18px;padding:12px}.game-canvas{width:min(100%,650px);height:auto;image-rendering:pixelated;border-radius:12px;background:#05070a;touch-action:none}.game-controls{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}.game-controls button{min-width:48px;min-height:42px}.grid2048{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:420px;margin:auto;background:#9b948b;padding:8px;border-radius:12px}.tile2048{aspect-ratio:1;display:grid;place-items:center;border-radius:8px;background:#d4ccc1;font-size:24px;font-weight:800}.tic-grid,.memory-grid,.mine-grid{display:grid;gap:8px;max-width:420px;margin:auto}.tic-grid{grid-template-columns:repeat(3,1fr)}.tic-cell{aspect-ratio:1;font-size:42px}.memory-grid{grid-template-columns:repeat(4,1fr)}.mem-card{aspect-ratio:1;border:1px solid var(--line);background:var(--surface2);border-radius:12px;font-size:28px;cursor:pointer}.mine-grid{grid-template-columns:repeat(8,1fr)}.mine-cell{aspect-ratio:1;padding:0;font-size:12px}.guess{max-width:360px;margin:auto;text-align:center}.guess .big{font-size:50px}.clicker{display:grid;place-items:center;gap:18px;padding:25px}.coin{width:160px;height:160px;border-radius:50%;border:7px solid #d7a82d;background:#ffd95a;font-size:70px;cursor:pointer;box-shadow:0 10px 30px rgba(255,210,50,.25)}.reaction-box{height:240px;display:grid;place-items:center;border-radius:18px;background:#d04b4b;color:white;font-weight:800;font-size:22px;cursor:pointer}.runner-actions{display:flex;justify-content:center;gap:10px;margin-top:10px}
@media(max-width:950px){.game-grid{grid-template-columns:repeat(3,1fr)}.stats-grid{grid-template-columns:repeat(3,1fr)}.hero{grid-template-columns:1fr}.hero-orbit{max-width:520px;width:100%;margin:auto}.split,.profile-columns{grid-template-columns:1fr}}
@media(max-width:650px){.header{padding:0 14px}.header nav>a{display:none}.header nav{gap:3px}.game-grid{grid-template-columns:repeat(2,1fr)}.hero{padding-top:50px}.hero-orbit{height:300px}.section{padding-left:16px;padding-right:16px}.section-top{align-items:stretch;flex-direction:column}.filters{flex-direction:column}.filters input{width:100%}.stats-grid{grid-template-columns:repeat(2,1fr)}.profile-head{align-items:flex-start;flex-wrap:wrap}.profile-actions{margin-left:0;width:100%}.profile-actions .btn{flex:1}.achievement-grid{grid-template-columns:1fr}}
@media(max-width:430px){.game-grid{grid-template-columns:1fr}.hero h1{font-size:56px}.actions{flex-direction:column}.actions .btn{width:100%}.stats-grid{grid-template-columns:1fr 1fr}.modal-card{padding:22px}}

/* Full-screen, stable game mode */
body.game-open{overflow:hidden}
body.game-open .header,body.game-open main,body.game-open #toast{display:none}
body.game-open .modal{position:fixed;inset:0;padding:0;background:#05070a;backdrop-filter:none;overflow:hidden;z-index:999}
body.game-open .game-modal{width:100vw;max-width:none;height:100vh;max-height:none;margin:0;padding:clamp(14px,2vw,28px);border:0;border-radius:0;box-shadow:none;background:var(--surface);display:flex;flex-direction:column;overflow:hidden}
body.game-open .game-head{flex:0 0 auto;min-height:54px;padding-right:46px}
body.game-open .game-head h2{font-size:clamp(22px,3vw,38px)}
body.game-open #gameMount{flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;overflow:auto;padding:clamp(8px,2vw,20px)}
body.game-open .canvas-wrap{width:100%;height:100%;min-height:0;padding:0;background:transparent;display:grid;place-items:center}
body.game-open .game-canvas{width:100%;height:auto;max-height:100%;max-width:none;object-fit:contain;display:block}
body.game-open .grid2048,.game-modal .grid2048{width:min(82vmin,760px);max-width:100%}
body.game-open .tic-grid,body.game-open .memory-grid{width:min(88vmin,850px);max-width:100%}
body.game-open .mine-grid{width:min(92vmin,900px);max-width:100%}
body.game-open .clicker,body.game-open .guess{width:min(100%,1000px);margin:auto}
body.game-open .coin{width:clamp(160px,38vmin,360px);height:clamp(160px,38vmin,360px);font-size:clamp(70px,16vmin,150px)}
body.game-open .reaction-box{width:min(100%,1100px);height:min(62vh,650px);margin:auto}
body.game-open .game-help{flex:0 0 auto;text-align:center;padding:8px 0 2px}
@media(max-width:650px){body.game-open .game-modal{padding:10px}body.game-open #gameMount{padding:5px}body.game-open .game-help{font-size:11px}.mine-cell{font-size:10px}.tic-cell{font-size:32px}.mem-card{font-size:22px}}