:root{--bg:#0e0e10;--panel:#18181b;--line:#2a2a2e;--text:#efeff1;--muted:#adadb8;--tw:#9146ff;--tw2:#772ce8}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--text);font:16px/1.5 "Inter","Segoe UI",system-ui,sans-serif;display:flex;flex-direction:column;min-height:100vh}
a{color:var(--tw)}main{flex:1}
.hero{max-width:720px;margin:0 auto;padding:12vh 24px 40px;text-align:center}
.hero h1{font-size:clamp(34px,7vw,56px);margin:0 0 12px;letter-spacing:-.02em}
.hero p{color:var(--muted);font-size:18px;margin:0 auto 32px;max-width:520px}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--tw);color:#fff;text-decoration:none;font-weight:600;padding:14px 26px;border-radius:12px;font-size:17px;border:0;cursor:pointer;transition:.15s}
.btn:hover{background:var(--tw2);transform:translateY(-1px)}
.btn svg{width:22px;height:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;max-width:720px;margin:0 auto;padding:0 24px 60px}
.grid h3{margin:0 0 6px;font-size:16px}.grid p{margin:0;color:var(--muted);font-size:14px}
footer{border-top:1px solid var(--line);padding:18px 24px;text-align:center;color:var(--muted);font-size:13px}
footer a{color:var(--muted)}
/* play page */
.play{max-width:520px;margin:0 auto;padding:20px}
.who{display:flex;align-items:center;gap:12px;margin-bottom:16px}.who img{width:44px;height:44px;border-radius:50%}
.who small{color:var(--muted);display:block}
#pad{position:relative;width:100%;aspect-ratio:16/9;background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;touch-action:none;cursor:crosshair}
#pad .dot{position:absolute;width:14px;height:14px;border-radius:50%;transform:translate(-50%,-50%);border:2px solid #fff;pointer-events:none}
#pad .hint{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:14px;pointer-events:none}
.row{display:flex;gap:8px;margin-top:12px}
input[type=text]{flex:1;background:var(--panel);border:1px solid var(--line);color:var(--text);padding:12px 14px;border-radius:12px;font:inherit}
.keys{color:var(--muted);font-size:13px;margin-top:10px}
kbd{background:var(--line);padding:1px 6px;border-radius:5px;font:12px monospace}
#pad iframe{position:absolute;inset:0;width:100%;height:100%;border:0;pointer-events:none}
#pad #mini{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
#pad #mute{position:absolute;right:8px;top:8px;background:rgba(0,0,0,.55);border:0;color:#fff;border-radius:8px;padding:6px 8px;cursor:pointer;font-size:14px;z-index:2}
#pad .hint{background:rgba(0,0,0,.35);color:#fff}