:root{color-scheme:dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#0d0f13;color:#f5f7fa}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#1a2029 0,#0d0f13 55%);color:#f5f7fa}.player-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.player-card{width:min(100%,480px);background:#13171d;border:1px solid #282f39;border-radius:24px;padding:26px;box-shadow:0 24px 80px rgba(0,0,0,.35)}.player-brand{display:flex;gap:12px;align-items:center;margin-bottom:28px}.player-brand strong,.player-brand small{display:block}.player-brand small{color:#929cab;margin-top:2px}.player-logo{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:#202731;font-size:23px}.intro h1{margin:0 0 6px;font-size:clamp(1.7rem,6vw,2.2rem)}.intro p{margin:0;color:#9fa9b6;line-height:1.5}.login-form{display:grid;gap:18px}.login-form label{display:grid;gap:8px;color:#c8d0da;font-weight:700}.login-form input{width:100%;border:1px solid #343d49;border-radius:12px;background:#0f1217;color:#fff;padding:14px 15px;font:inherit;outline:none}.login-form input:focus{border-color:#6b86ff;box-shadow:0 0 0 3px rgba(107,134,255,.15)}button{font:inherit;font-weight:800;border:0;border-radius:12px;padding:14px 18px;cursor:pointer}.primary{background:#6b86ff;color:#fff}.secondary{background:#252c36;color:#f5f7fa}.transport{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.transport-button{min-height:54px;font-size:1.05rem}.volume-control{display:grid;grid-template-columns:1fr auto;gap:10px 14px;align-items:center;margin-top:24px;font-weight:700}.volume-control strong{font-variant-numeric:tabular-nums}.volume-control input{grid-column:1/-1;width:100%;accent-color:#6b86ff}.gesture-hint,.login-error,.player-message{margin-top:18px;border-radius:12px;padding:13px 14px;line-height:1.45}.gesture-hint{background:#2b2414;color:#ffd98b;border:1px solid #58491f}.login-error,.player-message.error{background:#2a1719;color:#ffb0b6;border:1px solid #5e2a30}.player-message{display:grid;gap:8px}.player-message strong{font-size:1.08rem}.player-message span{color:#dcb9bc}.player-message code{color:#fff}audio{display:none}@media(max-width:520px){.player-shell{padding:14px}.player-card{padding:22px 18px;border-radius:20px}.transport{grid-template-columns:1fr}}