:root{
  --bg: #f2f7ff;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #475569;
  --line: #dbeafe;
  --acc1: #22d3ee; --acc2: #10b981; --acc3: #8b5cf6;
  --btn: #22d3ee;
  --shadow: 0 20px 60px rgba(2, 6, 23, .08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:url('/assets/bg-tech.svg') no-repeat center/cover;color:var(--ink);font:16px/1.55 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto}
a{color:inherit}

.bar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:14px 22px;background:rgba(255,255,255,.85);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:14px}
.wordmark{height:36px}
.badge{font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:#f8fbff}
.nav{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tab-link{padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:#f8fbff}

.wrap{max-width:1200px;margin:28px auto;padding:0 20px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);margin-bottom:20px}
.panel.inner{margin-top:14px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:900px){.grid2{grid-template-columns:1fr}}

label{display:block;font-weight:600;margin-bottom:8px}
input,select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#f8fbff;color:var(--ink);outline:none}
input:focus,select:focus{box-shadow:0 0 0 3px rgba(34,211,238,.15)}

.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.hint{color:var(--muted);font-size:12px;margin-top:6px}

.btn{cursor:pointer;position:relative;isolation:isolate;overflow:hidden;padding:12px 16px;border-radius:12px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#f4faff);color:var(--ink);}
.btn + .btn{margin-left:8px}
.btn.primary{background:linear-gradient(180deg,#67e8f9,#22d3ee);border-color:#06b6d4;color:#003344}
.btn.success{background:linear-gradient(180deg,#34d399,#10b981);border-color:#059669;color:#00331f}
.btn:active{transform:translateY(1px)}
.btn::after{content:"";position:absolute;inset:-2px;background:radial-gradient(260px 160px at var(--x) var(--y), rgba(34,211,238,.22), transparent 60%);opacity:0;transition:opacity .25s;z-index:-1}
.btn.light{background:#ffffff}
.btn:hover::after{opacity:1}

.presence{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.presence .p{background:#f8fbff;border:1px solid var(--line);border-radius:12px;padding:6px 10px}

.countdown{font-weight:700;color:#22d3ee;margin:4px 0 8px}
.round{background:#f8fbff;border:1px solid var(--line);border-radius:12px;padding:18px;min-height:190px}

.tile-grid{display:grid;grid-template-columns:repeat(5, minmax(170px,1fr));gap:16px}
@media(max-width:1100px){.tile-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:820px){.tile-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.tile-grid{grid-template-columns:repeat(2,1fr)}}

.tile{position:relative;height:150px;perspective:900px;cursor:pointer}
.tile-inner{position:absolute;inset:0;transform-style:preserve-3d;border-radius:14px;box-shadow:var(--shadow);transition:transform .6s cubic-bezier(.2,.7,.2,1), filter .25s}
.tile:hover .tile-inner{transform:translateY(-5px) rotateX(6deg) rotateY(-4deg)}
.tile.flip .tile-inner{transform:rotateY(180deg)}
.tile-face{position:absolute;inset:0;background:#ffffff;border:1px solid var(--line);border-radius:14px;display:grid;place-items:center;padding:10px;backface-visibility:hidden}
.tile-front::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg, transparent 40%, rgba(34,211,238,.2) 50%, transparent 60%);transform:translateX(-100%);transition:transform .6s;pointer-events:none;border-radius:14px}
.tile:hover .tile-front::after{transform:translateX(100%)}
.tile-back{transform:rotateY(180deg);text-align:center;padding:12px}
.tile-sub{font-size:12px;color:#334155}
.tile-icon{font-size:32px;margin-top:6px}
.tile-score{position:absolute;top:8px;right:8px;font-size:11px;background:#ffffffbd;border:1px solid var(--line);padding:2px 6px;border-radius:8px}

.ai-rail{display:flex;gap:12px;align-items:flex-start;margin-top:12px}
.ai-avatar{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);overflow:hidden;background:#fff;display:grid;place-items:center}
.ai-bubble{flex:1;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}

.sticker-reveal{margin:12px 0}
.sticker-slot{width:140px;height:140px;border-radius:16px;border:1px dashed #94a3b8;display:grid;place-items:center;background:#f8fbff}

.sticker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.card{background:#ffffff;border:1px solid var(--line);border-radius:14px;padding:8px;display:grid;place-items:center;box-shadow:var(--shadow)}
.rar{font-size:12px;color:#334155}

.modal{position:fixed;inset:0;background:#0004;display:grid;place-items:center;z-index:50}
.modal[hidden]{display:none}
.modal-inner{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;width:min(720px,92vw);box-shadow:var(--shadow)}
.icon.close{position:absolute;top:10px;right:10px;background:#ffffff;border:1px solid var(--line);border-radius:10px;padding:6px 10px;cursor:pointer}

.code-pill{display:inline-flex;gap:8px;align-items:center;background:#ffffff;border:1px solid #cbd5e1;border-radius:999px;padding:6px 10px;animation:pulse 1.1s ease-in-out 2}
@keyframes pulse{0%{transform:scale(.98)}50%{transform:scale(1.04)}100%{transform:scale(1)}}

.confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:9999}
.dot{position:absolute;width:8px;height:8px;border-radius:2px;animation:fall 2.4s linear forwards}
@keyframes fall{to{transform:translateY(100vh) rotate(600deg);opacity:0}}

.badge-blue{background:#e0f2fe;border:1px solid #bae6fd;border-radius:999px;padding:2px 8px;color:#0369a1;font-size:11px}

.miner{display:flex;gap:10px;align-items:center}
.meter{height:10px;border-radius:999px;border:1px solid var(--line);background:#f8fbff;overflow:hidden;flex:1}
.fill{height:100%;background:linear-gradient(90deg,#22d3ee,#10b981,#8b5cf6)}