*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#090a1a;--bg2:#111433;--card:#161a3a;--border:#2a2f6b;--neon-pink:#ff2e97;--neon-cyan:#00f0ff;--neon-purple:#9d4edd;--text:#e6e8ff;--muted:#8b8ec8;--success:#00ff88;--warn:#ffcc00}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;background-image:radial-gradient(ellipse at 20% 0%,rgba(157,78,221,0.18),transparent 60%),radial-gradient(ellipse at 80% 0%,rgba(0,240,255,0.12),transparent 60%),linear-gradient(180deg,#0a0c2a 0%,#090a1a 100%)}
a{color:var(--neon-cyan);text-decoration:none}
a:hover{text-decoration:underline}
/* Header */
.header{position:sticky;top:0;z-index:20;background:rgba(9,10,26,0.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:12px 24px;flex-wrap:wrap;gap:12px}
.logo{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:0.04em;font-size:1.35rem}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--neon-pink),var(--neon-cyan));display:grid;place-items:center;font-size:18px;box-shadow:0 0 18px rgba(255,46,151,0.5)}
.logo span{background:linear-gradient(90deg,var(--neon-pink),var(--neon-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav{display:flex;gap:8px;flex-wrap:wrap}
.nav button{background:transparent;border:1px solid var(--border);color:var(--muted);padding:8px 14px;border-radius:999px;cursor:pointer;font-weight:600;font-size:0.85rem;transition:.2s}
.nav button.active,.nav button:hover{border-color:var(--neon-cyan);color:var(--neon-cyan);box-shadow:0 0 12px rgba(0,240,255,0.25)}
.user-chip{display:flex;align-items:center;gap:10px;font-size:0.9rem}
.user-chip .avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--neon-purple),var(--neon-pink));display:grid;place-items:center;font-weight:800}
.btn{border:none;padding:9px 16px;border-radius:999px;cursor:pointer;font-weight:700;font-size:0.85rem;transition:.18s}
.btn-primary{background:linear-gradient(135deg,var(--neon-pink),var(--neon-purple));color:#fff;box-shadow:0 4px 18px rgba(255,46,151,0.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 22px rgba(255,46,151,0.5)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--muted)}
.btn-ghost:hover{border-color:var(--neon-cyan);color:var(--text)}
.btn-small{padding:6px 12px;font-size:0.78rem}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}

/* Layout */
.container{max-width:1160px;margin:0 auto;padding:24px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:800px){.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:0 8px 32px rgba(0,0,0,0.35)}
.card-title{font-size:1.05rem;font-weight:800;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.badge{font-size:0.7rem;padding:3px 8px;border-radius:999px;font-weight:800;letter-spacing:0.06em}
.badge-live{background:rgba(0,255,136,0.15);color:var(--success);border:1px solid rgba(0,255,136,0.3)}
.badge-closed{background:rgba(139,142,200,0.15);color:var(--muted);border:1px solid var(--border)}
.stat-row{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0}
.stat{flex:1;min-width:90px;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:12px;padding:10px;text-align:center}
.stat .num{font-size:1.3rem;font-weight:900;color:var(--neon-cyan)}
.stat .lbl{font-size:0.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.06em}

/* Sequencer */
.sequencer{overflow-x:auto}
.seq-grid{display:inline-block;min-width:100%}
.seq-row{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.seq-label{width:56px;font-size:0.75rem;font-weight:800;letter-spacing:0.06em;color:var(--muted);text-transform:uppercase;text-align:right;padding-right:6px}
.seq-cells{display:flex;gap:4px}
.cell{width:32px;height:36px;border-radius:8px;border:1px solid var(--border);background:rgba(255,255,255,0.04);cursor:pointer;transition:.12s;position:relative}
.cell.active-kick{background:linear-gradient(135deg,#ff2e97,#ff6b35);border-color:#ff2e97;box-shadow:0 0 10px rgba(255,46,151,0.5)}
.cell.active-snare{background:linear-gradient(135deg,#00f0ff,#7afcff);border-color:#00f0ff;box-shadow:0 0 10px rgba(0,240,255,0.5)}
.cell.active-hihat{background:linear-gradient(135deg,#ffe600,#ffcc00);border-color:#ffe600;box-shadow:0 0 10px rgba(255,230,0,0.4)}
.cell.active-synth{background:linear-gradient(135deg,#9d4edd,#c77dff);border-color:#9d4edd;box-shadow:0 0 10px rgba(157,78,221,0.5)}
.cell.playing{transform:scale(1.06);filter:brightness(1.25)}
.seq-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:12px}
.seq-controls input[type="range"]{accent-color:var(--neon-pink)}
.input{padding:8px 12px;border-radius:10px;border:1px solid var(--border);background:rgba(255,255,255,0.06);color:var(--text);font-size:0.9rem}
.input:focus{outline:none;border-color:var(--neon-cyan);box-shadow:0 0 0 3px rgba(0,240,255,0.15)}

/* Battle cards */
.battle-card{display:flex;gap:12px;align-items:stretch}
.battle-side{flex:1;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:14px;padding:12px;text-align:center;cursor:pointer;transition:.18s;position:relative;overflow:hidden}
.battle-side:hover{border-color:var(--neon-cyan);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.35)}
.battle-side.winner{border-color:var(--success);box-shadow:0 0 18px rgba(0,255,136,0.35)}
.battle-side.loser{opacity:0.7}
.vs-badge{align-self:center;background:var(--bg2);border:1px solid var(--border);width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:var(--neon-pink);flex-shrink:0}
.vote-bar{height:6px;background:rgba(255,255,255,0.08);border-radius:999px;overflow:hidden;margin-top:8px;display:flex}
.vote-bar .fill-a{background:linear-gradient(90deg,var(--neon-pink),var(--neon-purple));transition:width .4s}
.vote-bar .fill-b{background:linear-gradient(90deg,var(--neon-cyan),#7afcff);transition:width .4s}

/* Leaderboard */
.leader-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;border:1px solid var(--border);background:rgba(255,255,255,0.03);margin-bottom:8px;transition:.15s}
.leader-row:hover{background:rgba(255,255,255,0.06);border-color:var(--neon-cyan)}
.rank{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:0.85rem}
.rank-1{background:linear-gradient(135deg,#ffd700,#ffb700);color:#222}
.rank-2{background:linear-gradient(135deg,#c0c0c0,#a8a8a8);color:#222}
.rank-3{background:linear-gradient(135deg,#cd7f32,#b56a28);color:#fff}
.rank-other{background:var(--bg2);color:var(--muted);border:1px solid var(--border)}

/* Login */
.login-wrap{max-width:420px;margin:40px auto}
.login-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:24px;box-shadow:0 16px 48px rgba(0,0,0,0.5)}
.login-card h2{font-size:1.4rem;margin-bottom:6px}
.login-card p{color:var(--muted);font-size:0.9rem;margin-bottom:16px}
.form-group{margin-bottom:12px}
.form-group label{font-size:0.78rem;color:var(--muted);display:block;margin-bottom:4px;font-weight:600}
.seed-users{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.seed-btn{padding:8px 10px;border-radius:10px;border:1px solid var(--border);background:rgba(255,255,255,0.04);color:var(--text);cursor:pointer;font-size:0.78rem;transition:.15s}
.seed-btn:hover{border-color:var(--neon-pink);color:var(--neon-pink)}
.seed-btn small{display:block;color:var(--muted);font-size:0.68rem}

/* Utils */
.empty{padding:24px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:12px;background:rgba(255,255,255,0.02)}
.loading{padding:20px;text-align:center;color:var(--muted)}
.error{padding:12px;background:rgba(255,46,151,0.12);border:1px solid rgba(255,46,151,0.3);color:#ff8abf;border-radius:10px;margin-bottom:12px}
.hint{font-size:0.78rem;color:var(--muted);margin-top:6px}
.divider{height:1px;background:var(--border);margin:16px 0}
.tag{font-size:0.7rem;padding:2px 7px;border-radius:999px;background:rgba(0,240,255,0.12);color:var(--neon-cyan);border:1px solid rgba(0,240,255,0.25)}