:root{--bg:#1a2228;--bg2:#141b20;--card:#222c33;--line:#2e3a42;--icy:#6eb5d4;--steel:#5b8fa8;--light:#e8f1f5;--muted:#9fb3bf}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none !important}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:radial-gradient(1200px 500px at 20% -10%,#24323b 0,transparent 60%),var(--bg);color:var(--light);min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
.wrap{width:min(1200px,92%);margin:0 auto}
main{flex:1}
.header{position:sticky;top:0;z-index:10;background:rgba(20,27,32,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{font-size:1.7rem;font-weight:800;letter-spacing:-.5px}.logo span{color:var(--icy)}
.nav{margin-left:auto;display:flex;gap:36px}.nav a{color:var(--light);font-weight:500;opacity:.9}.nav a:hover,.nav a.active{color:var(--icy)}
.btn-signin{border:1.5px solid var(--icy);color:var(--icy);padding:9px 18px;border-radius:10px;font-weight:600;transition:.2s}
.btn-signin:hover{background:var(--icy);color:var(--bg)}
.btn-signin.signed-in{display:inline-flex;align-items:center;gap:8px;max-width:min(62vw,420px)}
.signin-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.signin-out{flex:none;font-weight:600;opacity:.8;border-left:1px solid currentColor;padding-left:8px}
.menu-toggle{display:none;background:none;border:0;color:var(--light);font-size:1.5rem;cursor:pointer}
.hero{padding:44px 0 26px}.hero h1{font-size:clamp(2rem,5.5vw,3.6rem);font-weight:800;letter-spacing:-1px;line-height:1.1}.hero h1 span{color:var(--icy)}
.hero p{color:var(--muted);font-size:1.15rem;margin-top:14px;line-height:1.6}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding-bottom:36px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:var(--steel);box-shadow:0 12px 30px rgba(0,0,0,.45),0 0 0 1px rgba(110,181,212,.25)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.card span{display:block;text-align:center;padding:12px;font-weight:600;font-size:1.1rem;background:linear-gradient(#1f282e,#1b2329)}
.info{border-top:1px solid var(--line);padding:24px 0}.info h2{color:var(--icy);margin-bottom:6px}.info p{color:var(--muted)}
.footer{border-top:1px solid var(--line);background:var(--bg2);text-align:center;padding:22px;color:var(--muted)}.footer a:hover{color:var(--icy)}
.legal{max-width:720px;padding:36px 0 56px}
.legal h1{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;letter-spacing:-.4px}
.legal .updated,.legal p,.legal li{color:var(--muted);line-height:1.65}
.legal .updated{margin:8px 0 4px}
.legal h2{color:var(--icy);font-size:1.15rem;margin:22px 0 8px}
.legal ul{margin:8px 0 0 1.2rem}
.legal a{color:var(--icy)}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--icy);color:var(--bg);padding:12px 20px;border-radius:10px;font-weight:600;opacity:0;transition:.3s;max-width:min(92vw,420px);text-align:center;z-index:20}.toast.show{opacity:1;transform:translateX(-50%)}.toast.error{background:#e07a7a;color:#1a1212}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 22px;border-radius:10px;font-weight:700;font-size:1rem;border:0;cursor:pointer;transition:.2s;font-family:inherit}.btn:disabled{opacity:.6;cursor:wait}
.btn-primary{background:var(--icy);color:var(--bg)}.btn-primary:hover{background:#8cc8e2}
.btn-ghost{background:transparent;color:var(--light);border:1.5px solid var(--line)}.btn-ghost:hover{border-color:var(--steel)}
.btn-google{background:#fff;color:#222;width:100%}
.google-slot{position:relative}
.google-gis{position:absolute;inset:0;z-index:2;overflow:hidden;opacity:0;pointer-events:none}
.google-gis.ready{pointer-events:auto}
.google-gis iframe{display:block;width:100% !important;cursor:pointer}
/* login */
.auth{display:flex;justify-content:center;padding:48px 0}
.auth-card{width:min(420px,100%);background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.auth-card h1{font-size:1.8rem;overflow-wrap:anywhere}.auth-card .sub{color:var(--muted);margin:6px 0 22px}
#account,#profile{scroll-margin-top:84px}
#profile{margin-bottom:16px}
.field-hint{color:var(--muted);font-size:.82rem;margin-top:6px;line-height:1.4}
#profile .full{margin-top:12px}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);margin:20px 0;font-size:.9rem}.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
label{display:block;font-size:.9rem;color:var(--muted);margin:12px 0 6px}
input{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--light);padding:12px;border-radius:10px;font-size:1rem;font-family:inherit}input:focus{outline:none;border-color:var(--icy)}
.full{width:100%;margin-top:14px}
.note{color:var(--muted);font-size:.85rem;text-align:center;margin-top:18px;line-height:1.45}.note code{color:var(--icy)}
.demo-code{color:var(--icy);font-weight:700;text-align:center;margin-top:10px}
.auth-error{color:#ffd0d0;background:#3a2428;border:1px solid #8a4a52;border-radius:10px;padding:10px 12px;margin-top:14px;font-size:.9rem;line-height:1.4}
/* game page */
.back{display:inline-block;color:var(--icy);margin:28px 0 16px;font-weight:600}
.play{margin-bottom:18px}
.stage{position:relative;width:100%;height:min(82vh,940px);min-height:520px;display:flex;flex-direction:column;background:#05060a;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.45);touch-action:none}
.stage canvas{flex:1;width:100%;height:0;min-height:0;display:block;background:#05060a;touch-action:none}
.stage canvas:focus{outline:none}
.stage .hud{display:flex;align-items:center;gap:8px;padding:6px 8px;background:#14101f;border-bottom:1px solid #3a2f55;flex:none}
.stage .hb{width:38px;height:38px;border-radius:10px;border:1px solid #3a2f55;background:#1f1830;color:#f4eefc;font-size:.95rem;cursor:pointer;font-family:inherit}
.stage .hb:disabled{opacity:.35;cursor:default}
.stage .hs{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.15}
.stage .hs b{font-size:.85rem}
.stage .hs span{font-size:.72rem;color:#a99cc4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stage .hscore{text-align:right;line-height:1.05}
.stage .hscore span{font-size:1.3rem;font-weight:800;color:#ffc23d}
.stage .hscore small{display:block;font-size:.65rem;color:#a99cc4;font-weight:600}
.stage .overlay{position:absolute;inset:0;background:#000a;display:grid;place-items:center;z-index:5;padding:12px}
.stage .overlay .card{width:min(92vw,440px);max-height:min(86vh,640px);overflow:auto;background:#251d3a;border:1px solid #3a2f55;border-radius:20px;padding:22px;text-align:center;color:#f4eefc;box-shadow:0 10px 40px #0006}
.stage .overlay h2{margin:0 0 8px;font-size:1.35rem}
.stage .overlay .muted{color:#a99cc4;font-size:.9rem;line-height:1.45;margin:0}
.stage .obtns,.stage .sg-actions{display:grid;gap:8px;margin-top:12px}
.stage .obtns button,.stage .sg-go{width:100%;margin:0;padding:12px;border:0;border-radius:14px;font-weight:700;font-size:.95rem;color:#241000;background:linear-gradient(135deg,#ffc23d,#ff8a1f);cursor:pointer;font-family:inherit}
.stage .obtns button.on{outline:2px solid #fff;outline-offset:1px}
.stage .sg-go.ghost,.stage .obtns button.ghost{background:transparent;color:#ffc23d;border:1px solid #ff8a1f}
.stage .opt{margin-top:12px;text-align:left}
.stage .opt>span{font-size:.75rem;color:#a99cc4;display:block;margin-bottom:4px}
.stage .opt div{display:flex;flex-wrap:wrap;gap:6px}
.stage .opt button{flex:1;min-width:64px;padding:8px 6px;border-radius:10px;border:1px solid #3a2f55;background:#1f1830;color:#f4eefc;font-size:.8rem;cursor:pointer;font-family:inherit}
.stage .opt button.on{background:#ff8a1f;color:#241000;border-color:#ff8a1f;font-weight:700}
.stage .ctl{font-size:.8rem;text-align:left;background:#1f1830;border-radius:10px;padding:8px 10px;margin-top:12px;color:#d9cfee;line-height:1.45}
.stage-soon{position:absolute;inset:0;z-index:6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:24px;text-align:center;background:radial-gradient(600px 240px at 50% 30%,#24323b,#141b20)}
.stage-soon h2{font-size:clamp(1.6rem,4vw,2.2rem)}
.stage-soon p{color:var(--muted);max-width:36ch;line-height:1.5}
.game{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;padding-bottom:48px}
.game-meta{padding-top:8px}
.game-meta img{max-height:240px;object-fit:cover}
.game img{width:100%;border-radius:16px;border:1px solid var(--line);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.game h1{font-size:clamp(2rem,5vw,3rem);font-weight:800}.game .tag{color:var(--icy);font-weight:600;margin:6px 0 14px}
.game p{color:var(--muted);line-height:1.7;margin-bottom:24px}.actions{display:flex;gap:12px;flex-wrap:wrap}
.more h2{color:var(--icy);margin:8px 0 14px}.more .grid{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid,.more .grid{grid-template-columns:repeat(2,1fr)}.game{grid-template-columns:1fr}}
@media(max-width:640px){.menu-toggle{display:block}.nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg2);border-bottom:1px solid var(--line)}.nav.open{display:flex}.nav a{padding:14px 5%}.btn-signin{margin-left:auto;padding:7px 12px}.btn-signin.signed-in{font-size:.8rem;padding:6px 8px;gap:6px;max-width:none}.signin-out{padding-left:6px}.header-inner{gap:12px}.grid{gap:12px}.card span{font-size:.95rem;padding:9px}}