:root {
  --bg:#080a0d;
  --panel:#101318;
  --panel2:#151922;
  --line:#252b36;
  --text:#f3f6fb;
  --muted:#8c96a8;
  --soft:#b6becb;
  --acid:#c8ff38;
  --cyan:#57d8ff;
  --danger:#ff5d6c;
  --amber:#ffc857;
  --ok:#65e69d;
  --radius:18px;
  --shadow:0 24px 70px rgba(0,0,0,.36);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:"Space Grotesk",system-ui,sans-serif}
body{background-image:radial-gradient(circle at 15% 0%,rgba(87,216,255,.09),transparent 26rem),radial-gradient(circle at 85% 15%,rgba(200,255,56,.06),transparent 24rem)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit}
.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}
.topbar{height:72px;padding:0 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(8,10,13,.84);backdrop-filter:blur(14px);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.04em}
.brand-mark{width:34px;height:34px;border:1px solid var(--acid);display:grid;place-items:center;transform:rotate(45deg);border-radius:8px;box-shadow:0 0 24px rgba(200,255,56,.18)}
.brand-mark span{transform:rotate(-45deg);font-family:"DM Mono";font-size:12px;color:var(--acid)}
.brand-name{font-size:18px}
.beta{font-family:"DM Mono";font-size:10px;color:var(--acid);border:1px solid rgba(200,255,56,.35);padding:4px 7px;border-radius:999px}
.top-actions{display:flex;align-items:center;gap:10px}
.user-chip{display:flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--line);padding:7px 10px;border-radius:999px}
.avatar{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#202734,#0e131a);border:1px solid #333d4c;font-weight:700;font-size:12px}
.heat{font-family:"DM Mono";font-size:11px;color:var(--acid)}
.layout{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:calc(100vh - 72px)}
.sidebar{border-right:1px solid var(--line);padding:22px 16px;position:sticky;top:72px;height:calc(100vh - 72px)}
.nav-btn{width:100%;display:flex;align-items:center;gap:11px;padding:12px 13px;border:0;background:transparent;color:var(--muted);border-radius:12px;text-align:left;margin-bottom:5px}
.nav-btn:hover,.nav-btn.active{background:var(--panel);color:var(--text)}
.nav-btn.active{box-shadow:inset 2px 0 0 var(--acid)}
.sidebar-note{position:absolute;bottom:20px;left:16px;right:16px;padding:12px;border:1px solid var(--line);border-radius:12px;color:var(--muted);font-size:12px;line-height:1.45}
.main{padding:34px;max-width:1320px;width:100%;margin:0 auto}
.eyebrow{font-family:"DM Mono";color:var(--acid);font-size:11px;letter-spacing:.14em;text-transform:uppercase}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,6vw,86px);line-height:.92;letter-spacing:-.055em;margin-bottom:18px}
h2{font-size:28px;letter-spacing:-.035em}
h3{font-size:17px}
.muted{color:var(--muted)}
.hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:24px;margin-bottom:24px}
.hero-card,.card{background:linear-gradient(180deg,rgba(20,24,32,.97),rgba(14,17,22,.97));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:34px;min-height:360px;position:relative;overflow:hidden}
.hero-card:after{content:"";position:absolute;right:-110px;bottom:-140px;width:420px;height:420px;border:1px solid rgba(200,255,56,.18);border-radius:50%;box-shadow:0 0 0 46px rgba(200,255,56,.025),0 0 0 92px rgba(87,216,255,.02)}
.hero-copy{position:relative;z-index:2;max-width:760px}
.hero-sub{font-size:18px;color:var(--soft);max-width:650px;line-height:1.55}
.card{padding:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.metric{padding:15px;background:#0d1015;border:1px solid var(--line);border-radius:14px}
.metric strong{display:block;font-size:23px;letter-spacing:-.04em}.metric span{font-size:11px;color:var(--muted);font-family:"DM Mono"}
.btn{border:1px solid var(--line);background:#171c24;color:var(--text);padding:11px 15px;border-radius:11px;font-weight:600;transition:.15s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn:hover{transform:translateY(-1px);border-color:#3d4657}
.btn-primary{background:var(--acid);color:#0b0d0f;border-color:var(--acid)}
.btn-cyan{background:var(--cyan);color:#071116;border-color:var(--cyan)}
.btn-danger{border-color:rgba(255,93,108,.35);color:#ff8792;background:rgba(255,93,108,.08)}
.btn-ghost{background:transparent}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
.field label{font-family:"DM Mono";font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.input,.select,.textarea{width:100%;background:#0b0e13;border:1px solid var(--line);color:var(--text);border-radius:11px;padding:11px 12px;outline:none}
.input:focus,.select:focus,.textarea:focus{border-color:#4a586d;box-shadow:0 0 0 3px rgba(87,216,255,.06)}
.textarea{min-height:86px;resize:vertical}
.segment{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;background:#0b0e13;border:1px solid var(--line);padding:5px;border-radius:13px}
.segment button{border:0;background:transparent;color:var(--muted);padding:9px;border-radius:9px}.segment button.active{background:#202632;color:var(--text)}
.setup-list{display:grid;gap:12px}
.choice-row{display:flex;gap:7px;flex-wrap:wrap}
.choice{border:1px solid var(--line);background:#0d1015;color:var(--muted);padding:9px 11px;border-radius:10px}.choice.active{border-color:rgba(200,255,56,.5);background:rgba(200,255,56,.08);color:var(--acid)}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-box{width:min(1020px,100%);display:grid;grid-template-columns:1.1fr .9fr;border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--panel);box-shadow:var(--shadow)}
.auth-art{padding:44px;background:radial-gradient(circle at 20% 10%,rgba(87,216,255,.12),transparent 22rem),#0b0e12;display:flex;flex-direction:column;justify-content:space-between;min-height:620px}
.auth-art h1{font-size:72px}.auth-panel{padding:44px;display:flex;align-items:center}.auth-panel>div{width:100%}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.mini{border:1px solid var(--line);padding:12px;border-radius:12px;color:var(--muted);font-size:12px}.mini strong{display:block;color:var(--text);font-size:15px;margin-bottom:4px}
.divider{height:1px;background:var(--line);margin:18px 0}
.phase-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:20px}
.phase-badge{font-family:"DM Mono";font-size:11px;border:1px solid var(--line);border-radius:999px;padding:6px 9px;color:var(--soft)}
.timer{font-family:"DM Mono";font-size:34px;letter-spacing:-.05em;color:var(--acid);white-space:nowrap}
.room-code{font-family:"DM Mono";font-size:22px;letter-spacing:.14em;color:var(--cyan)}
.player-list{display:grid;gap:8px}.player{display:flex;align-items:center;justify-content:space-between;padding:11px 12px;background:#0d1015;border:1px solid var(--line);border-radius:12px}.player-left{display:flex;align-items:center;gap:10px}.player-status{font-family:"DM Mono";font-size:10px;color:var(--muted)}.player-status.ready{color:var(--ok)}
.prompt-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:18px}.prompt-visual{min-height:420px;border:1px solid var(--line);border-radius:16px;background:#080a0d;overflow:hidden;display:grid;place-items:center;position:relative}.prompt-visual img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.prompt-fallback{padding:30px;text-align:center;color:var(--muted);z-index:1}.prompt-overlay{position:absolute;inset:auto 0 0 0;padding:40px 18px 16px;background:linear-gradient(transparent,rgba(0,0,0,.9));z-index:2}.prompt-cat{font-family:"DM Mono";font-size:11px;color:var(--acid);letter-spacing:.1em}.prompt-cue{font-size:18px;line-height:1.45;margin:8px 0 0}.blind{background:repeating-linear-gradient(135deg,#10141a,#10141a 14px,#0b0e12 14px,#0b0e12 28px);display:grid;place-items:center;text-align:center;padding:35px}
.upload-drop{border:1px dashed #354052;border-radius:14px;padding:18px;background:#0b0e13}.upload-drop input{width:100%}
.audio-item{padding:14px;border:1px solid var(--line);border-radius:14px;background:#0d1015;margin-bottom:12px}.audio-title{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px}.audio-title strong{font-family:"DM Mono";font-size:12px}.audio-item audio{width:100%;height:36px}
.score-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:12px}.score-field label{display:block;color:var(--muted);font-size:10px;font-family:"DM Mono";margin-bottom:4px}.score-field input{width:100%}
.result-row{display:grid;grid-template-columns:60px 1fr repeat(5,90px);gap:10px;align-items:center;padding:13px;border-bottom:1px solid var(--line)}.result-row.header{font-size:10px;color:var(--muted);font-family:"DM Mono"}.rank{font-size:25px;font-weight:700}.winner{background:linear-gradient(90deg,rgba(200,255,56,.08),transparent)}
.leader-row{display:grid;grid-template-columns:50px 1fr 90px 80px 80px;gap:10px;padding:12px;border-bottom:1px solid var(--line);align-items:center}.leader-row.header{font-size:10px;color:var(--muted);font-family:"DM Mono"}
.toast{position:fixed;right:22px;bottom:22px;z-index:99;background:#171c24;border:1px solid var(--line);border-radius:12px;padding:12px 15px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.toast.error{border-color:rgba(255,93,108,.4);color:#ff9ba5}.toast.ok{border-color:rgba(101,230,157,.4);color:#9ff0bd}
.empty{padding:30px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:14px}
.small{font-size:12px}.mono{font-family:"DM Mono"}.spacer{height:14px}.hidden{display:none!important}
@media(max-width:980px){.layout{grid-template-columns:1fr}.sidebar{display:none}.main{padding:22px}.hero{grid-template-columns:1fr}.auth-box{grid-template-columns:1fr}.auth-art{min-height:320px}.auth-art h1{font-size:54px}.grid-3{grid-template-columns:1fr 1fr}.prompt-grid{grid-template-columns:1fr}.result-row{grid-template-columns:48px 1fr 70px}.result-row>*:nth-child(n+4){display:none}}
@media(max-width:640px){.topbar{padding:0 14px}.brand-name{font-size:16px}.beta{display:none}.user-chip .heat{display:none}.main{padding:16px}.hero-card{padding:24px;min-height:auto}.hero-card h1{font-size:52px}.grid-2,.grid-3,.metric-grid{grid-template-columns:1fr 1fr}.auth-panel,.auth-art{padding:26px}.auth-art h1{font-size:48px}.score-grid{grid-template-columns:1fr 1fr}.phase-head{flex-direction:column}.timer{font-size:30px}.leader-row{grid-template-columns:40px 1fr 70px}.leader-row>*:nth-child(n+4){display:none}}