:root{--bg:#0a1128;--card:#141d3f;--panel:#101a3a;--well:#0b1432;--muted:#a3aed8;--text:#f4f6ff;--accent:#ff5d6c;--accent2:#5cb8ff;--violet:#8b6cff;--blue:#2f86ff;--ok:#2ec4b6;--radius:18px}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 10% -10%,#1b2a6e 0,transparent 60%),radial-gradient(900px 500px at 110% 110%,#2e1d6b 0,transparent 60%),var(--bg);color:var(--text)}
h1,h2,h3{margin:0 0 .4em}.muted{color:var(--muted)}
.card{background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.06)}
button{font:inherit;font-weight:700;border:0;border-radius:14px;padding:14px 22px;cursor:pointer;background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;transition:transform .08s,opacity .2s}
button:active{transform:scale(.97)}button:disabled{opacity:.4;cursor:not-allowed}
button.ghost{background:transparent;border:1px solid rgba(255,255,255,.2);color:var(--muted)}
input{font:inherit;width:100%;padding:14px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:var(--well);color:var(--text);font-size:18px}
label{display:block;margin:14px 0 6px;color:var(--muted);font-size:14px;letter-spacing:.04em;text-transform:uppercase}
.topic{font-weight:800;background:linear-gradient(135deg,#6fd0ff,#a58bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.timer{font-variant-numeric:tabular-nums;font-weight:800}
.timer.low{color:var(--accent)}
.pill{display:inline-block;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.08);color:var(--muted);font-size:13px}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);margin-right:8px}.dot.off{background:#555}

/* HuddleSpark brand */
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);line-height:1;flex:none}
.brand img{width:40px;height:40px;border-radius:50%;box-shadow:0 0 0 2px rgba(92,184,255,.35),0 4px 14px rgba(47,134,255,.25);display:block}
.brand .bw{font-weight:800;font-size:20px;letter-spacing:-.01em;white-space:nowrap}
.brand .bw i{font-style:normal;background:linear-gradient(90deg,var(--blue),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.brand .bsub{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.12em;text-transform:uppercase;border-left:1px solid rgba(255,255,255,.18);padding-left:10px;white-space:nowrap}
.brand.sm img{width:30px;height:30px}.brand.sm .bw{font-size:16px}.brand.sm .bsub{font-size:11px;padding-left:8px}
.brandhero{display:flex;flex-direction:column;align-items:center;gap:6px}
.brandhero img{border-radius:50%;box-shadow:0 0 0 3px rgba(92,184,255,.3),0 10px 40px rgba(110,90,255,.35)}