:root{
  --bg:#06080f;--s1:#0d1117;--s2:#111520;
  --brd:rgba(255,255,255,.06);--brd2:rgba(255,255,255,.1);
  --text:#e2e8f0;--dim:#64748b;--white:#f8fafc;
  --purple:#8b5cf6;--blue:#3b82f6;--cyan:#06b6d4;
  --pink:#ee1d52;--gold:#fbbf24;--green:#22c55e;
  --font:"Inter","Cairo",system-ui,sans-serif;
  --qbg1:#1a1040;--qbg2:#0f1a3a;--qbrd:rgba(139,92,246,.35);
  --wbg1:#2a1a00;--wbg2:#1a1000;--wbrd:rgba(251,191,36,.45);
  --orb-op:.07;--aurora-display:block;
}
[data-theme="light"]{
  --bg:#f0f2f5;--s1:#ffffff;--s2:#f8f9fb;
  --brd:rgba(0,0,0,.08);--brd2:rgba(0,0,0,.12);
  --text:#1e293b;--dim:#64748b;--white:#0f172a;
  --qbg1:#ede9fe;--qbg2:#e0e7ff;--qbrd:rgba(139,92,246,.4);
  --wbg1:#fef3c7;--wbg2:#fff7ed;--wbrd:rgba(217,119,6,.4);
  --orb-op:0;--aurora-display:none;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{min-height:100vh;font-family:var(--font);background:var(--bg);color:var(--text);overflow:hidden}

/* AURORA */
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.aurora{display:var(--aurora-display)}
.aurora .orb{position:absolute;border-radius:50%;filter:blur(120px);opacity:var(--orb-op);animation:drift 25s ease-in-out infinite}
.aurora .orb:nth-child(1){width:600px;height:600px;background:var(--purple);top:-15%;left:-10%}
.aurora .orb:nth-child(2){width:500px;height:500px;background:var(--blue);bottom:-10%;right:-8%;animation-delay:-8s}
.aurora .orb:nth-child(3){width:400px;height:400px;background:var(--cyan);top:40%;left:50%;animation-delay:-16s}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(40px,-30px) scale(1.1)}50%{transform:translate(-20px,50px) scale(.95)}75%{transform:translate(30px,20px) scale(1.05)}}

.home-btn{
  position:fixed;left:14px;top:14px;z-index:70;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:1.2rem;text-decoration:none;
  background:rgba(0,0,0,.4);backdrop-filter:blur(16px);border:1px solid var(--brd);transition:transform .15s;
}
.home-btn:hover{transform:scale(1.08)}

/* ═══ SETUP ═══ */
.setup-screen{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center}
.setup-screen.hidden{display:none}
.setup-card{
  text-align:center;width:min(440px,92vw);position:relative;z-index:1;
  background:rgba(13,17,23,.8);backdrop-filter:blur(30px);
  border:1px solid var(--brd2);border-radius:24px;padding:40px 32px;
  box-shadow:0 30px 80px rgba(0,0,0,.5);
}
.setup-icon{font-size:3.5rem;margin-bottom:12px;animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.setup-title{
  font-size:2.2rem;font-weight:900;margin-bottom:6px;
  background:linear-gradient(135deg,#c4b5fd,#60a5fa,#22d3ee);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.setup-desc{color:var(--dim);font-size:.88rem;margin-bottom:24px;line-height:1.5}
.setup-form{display:flex;flex-direction:column;gap:12px}
.input-wrap{
  display:flex;align-items:center;border:1px solid var(--brd2);border-radius:14px;
  background:rgba(0,0,0,.3);overflow:hidden;transition:border-color .2s;
}
.input-wrap:focus-within{border-color:var(--purple)}
.iw-at{padding:0 14px;font-size:1.1rem;font-weight:800;color:var(--dim)}
.input-wrap input{flex:1;padding:14px 14px 14px 0;font-size:1rem;border:none;background:none;color:var(--white);outline:none;font-family:var(--font)}
.btn-go{
  padding:14px;border:none;border-radius:14px;font-size:1rem;font-weight:800;
  background:linear-gradient(135deg,var(--purple),var(--blue));color:#fff;cursor:pointer;
  box-shadow:0 4px 20px rgba(139,92,246,.3);transition:transform .15s,filter .15s;font-family:var(--font);
}
.btn-go:hover{transform:translateY(-1px);filter:brightness(1.1)}
.btn-go:disabled{opacity:.5;cursor:not-allowed;transform:none}
.setup-error{color:#ef4444;font-size:.8rem;min-height:1.2em}
.btn-theme-setup{
  padding:10px;border:1px solid var(--brd2);border-radius:12px;
  background:rgba(255,255,255,.04);color:var(--dim);font-size:.82rem;font-weight:600;
  cursor:pointer;font-family:var(--font);transition:all .2s;
}
.btn-theme-setup:hover{background:rgba(255,255,255,.08);color:var(--text)}
[data-theme="light"] .btn-theme-setup{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.1);color:#475569}
[data-theme="light"] .btn-theme-setup:hover{background:rgba(0,0,0,.08)}

/* ═══ DASH ═══ */
.dash{display:flex;flex-direction:column;height:100vh;position:relative;z-index:1}
.dash.hidden{display:none}

.dash-nav{
  display:flex;align-items:center;gap:14px;padding:10px 20px;
  background:rgba(13,17,23,.6);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--brd);flex-shrink:0;direction:ltr;
}
.dn-brand{font-size:.95rem;font-weight:900;color:var(--white)}
.dn-mid{display:flex;align-items:center;gap:6px;font-size:.72rem;color:var(--dim);margin-right:auto}
.sd{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 8px rgba(34,197,94,.5);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.dn-acts{display:flex;gap:5px}
.na-btn{
  padding:5px 12px;border:1px solid var(--brd2);border-radius:8px;
  background:rgba(255,255,255,.03);color:var(--dim);font-size:.65rem;font-weight:700;
  cursor:pointer;font-family:var(--font);transition:all .2s;
}
.na-btn:hover{background:rgba(255,255,255,.08);color:var(--text)}
.na-danger{border-color:rgba(239,68,68,.2);color:rgba(239,68,68,.6)}
.na-danger:hover{background:rgba(239,68,68,.12);color:#fca5a5}

/* CATEGORY BAR */
.cat-bar{
  display:flex;gap:6px;padding:8px 16px;overflow-x:auto;flex-shrink:0;
  border-bottom:1px solid var(--brd);background:rgba(0,0,0,.2);
}
.cat-bar::-webkit-scrollbar{height:0}
.cat-btn{
  padding:6px 14px;border-radius:10px;border:1px solid var(--brd);
  background:transparent;color:var(--dim);font-size:.72rem;font-weight:600;
  cursor:pointer;font-family:var(--font);white-space:nowrap;transition:all .2s;
}
.cat-btn:hover{border-color:var(--brd2);color:var(--text)}
.cat-btn.active{
  background:linear-gradient(135deg,rgba(139,92,246,.12),rgba(59,130,246,.08));
  border-color:rgba(139,92,246,.3);color:var(--white);
}

/* ═══ MAIN GRID ═══ */
.dash-main{flex:1;display:grid;grid-template-columns:260px 1fr 300px;overflow:hidden}

.pan{display:flex;flex-direction:column;overflow:hidden}
.pan-h{
  padding:12px 14px;font-size:.7rem;font-weight:800;color:var(--dim);
  border-bottom:1px solid var(--brd);letter-spacing:.08em;text-transform:uppercase;flex-shrink:0;
}
.pan-chat{background:rgba(13,17,23,.5);border-left:1px solid var(--brd)}
.pan-center{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;padding:20px;overflow-y:auto;
}
.pan-lb{background:rgba(13,17,23,.5);border-right:1px solid var(--brd)}

/* ═══ CHAT ═══ */
.chat-scroll{flex:1;overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:2px}
.chat-scroll::-webkit-scrollbar{width:3px}
.chat-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.08);border-radius:3px}
.cm{display:flex;gap:7px;padding:6px 8px;border-radius:8px;animation:ci .25s ease}
@keyframes ci{from{opacity:0;transform:translateX(-6px)}to{opacity:1;transform:translateX(0)}}
.cm:hover{background:rgba(255,255,255,.03)}
.cm-av{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;overflow:hidden;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
  display:flex;align-items:center;justify-content:center;font-size:.55rem;font-weight:800;color:#fff;
}
.cm-av img{width:100%;height:100%;object-fit:cover}
.cm-b{min-width:0;flex:1}
.cm-n{font-size:.7rem;font-weight:700;color:#7dd3fc}
.cm-t{font-size:.8rem;color:#f1f5f9;line-height:1.4;word-wrap:break-word}

/* ═══ QUESTION ═══ */
.qcard{
  width:100%;max-width:620px;border-radius:24px;overflow:hidden;
  background:linear-gradient(145deg,var(--qbg1),var(--qbg2));
  border:2px solid var(--qbrd);
  transition:border-color .3s,box-shadow .3s;
  box-shadow:0 0 30px rgba(139,92,246,.08);
}
.qcard:not(.qcard-idle){border-color:rgba(139,92,246,.5);box-shadow:0 0 50px rgba(139,92,246,.15)}
.qcard-bar{height:6px;background:rgba(255,255,255,.08);border-radius:24px 24px 0 0}
.qcard-fill{height:100%;background:linear-gradient(90deg,#8b5cf6,#06b6d4);transition:width .3s linear;width:100%;border-radius:6px}
.qcard-body{padding:32px 28px}
.qcard-label{font-size:.75rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:#c4b5fd;margin-bottom:12px}
.qcard-text{font-size:clamp(1.5rem,4vw,2.6rem);font-weight:900;color:var(--white);line-height:1.3;margin-bottom:10px}
.qcard-idle .qcard-text{color:#94a3b8;font-size:1.2rem;font-weight:600;text-shadow:none}
.qcard-timer{font-size:2.8rem;font-weight:900;color:#c4b5fd;font-variant-numeric:tabular-nums;text-shadow:0 0 20px rgba(139,92,246,.3)}
.qcard-idle .qcard-timer{display:none}

/* ═══ WINNER ═══ */
.wcard{
  width:100%;max-width:620px;border-radius:24px;padding:28px;text-align:center;
  background:linear-gradient(145deg,var(--wbg1),var(--wbg2));
  border:2px solid var(--wbrd);box-shadow:0 0 50px rgba(251,191,36,.12);
  animation:wp .5s cubic-bezier(.34,1.56,.64,1);
}
.wcard.hidden{display:none}
@keyframes wp{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.wcard-badge{font-size:.72rem;font-weight:800;color:#fcd34d;letter-spacing:.15em;text-transform:uppercase;margin-bottom:10px}
.wcard-name{
  font-size:2.2rem;font-weight:900;
  background:linear-gradient(135deg,#fcd34d,#fb923c);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px;
  text-shadow:0 0 20px rgba(251,191,36,.2);
}
.wcard-user{font-size:.9rem;color:#d4a574;direction:ltr;display:inline-block;margin-bottom:6px}
.wcard-ans{font-size:1rem;color:#fef3c7;opacity:.8}

/* ═══ LEADERBOARD ═══ */
.lb-scroll{flex:1;overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:4px}
.lb-scroll::-webkit-scrollbar{width:3px}
.lb-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.08);border-radius:3px}
.lr{
  display:grid;grid-template-columns:34px 1fr auto;align-items:center;gap:8px;
  padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.04);
  background:rgba(255,255,255,.02);animation:ci .3s ease;transition:all .15s;
}
.lr:hover{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.08)}
.lr:nth-child(1){border-color:rgba(251,191,36,.3);background:linear-gradient(135deg,rgba(146,64,14,.15),rgba(120,53,15,.08))}
.lr:nth-child(2){border-color:rgba(203,213,225,.15);background:rgba(71,85,105,.08)}
.lr:nth-child(3){border-color:rgba(253,186,116,.15);background:rgba(154,52,18,.06)}
.lr-rk{
  width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:.68rem;color:var(--dim);background:rgba(255,255,255,.04);border:1px solid var(--brd);
}
.lr:nth-child(1) .lr-rk{background:rgba(251,191,36,.12);color:var(--gold);border-color:rgba(251,191,36,.25)}
.lr:nth-child(2) .lr-rk{background:rgba(203,213,225,.08);color:#cbd5e1;border-color:rgba(203,213,225,.15)}
.lr:nth-child(3) .lr-rk{background:rgba(253,186,116,.08);color:#fdba74;border-color:rgba(253,186,116,.15)}
.lr-info{min-width:0}
.lr-nm{font-weight:800;color:#f8fafc;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.9rem}
.lr-uid{font-size:.62rem;color:#94a3b8;direction:ltr;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lr-sc{font-weight:900;color:#a78bfa;font-size:1.1rem;font-variant-numeric:tabular-nums}
.lr:nth-child(1) .lr-sc{color:var(--gold);font-size:1.2rem}

.hidden{display:none!important}

@media(max-width:900px){
  .dash-main{grid-template-columns:1fr;grid-template-rows:auto 1fr auto}
  .pan-chat{max-height:25vh;border:none;border-bottom:1px solid var(--brd)}
  .pan-lb{max-height:32vh;border:none;border-top:1px solid var(--brd)}
  .pan-center{padding:14px 10px;gap:12px}
  .qcard-text{font-size:1.6rem!important}
  .qcard-timer{font-size:2.5rem!important}
  .qcard-label{font-size:.75rem!important}
  .qcard-body{padding:24px 18px!important}
  .qcard-bar{height:6px!important}
  .wcard{padding:22px}
  .wcard-name{font-size:1.8rem}
  .wcard-badge{font-size:.7rem}
  .wcard-ans{font-size:.95rem}
  .lr{padding:10px}
  .lr-nm{font-size:.92rem}
  .lr-sc{font-size:1.15rem}
  .cm-t{font-size:.84rem}
  .cm-n{font-size:.72rem}
}
@media(max-width:600px){
  .setup-card{padding:28px 18px}.setup-title{font-size:1.7rem}
  .dash-nav{padding:8px 10px;gap:8px}.dn-brand{font-size:.85rem}
  .cat-bar{padding:6px 10px;gap:4px}.cat-btn{font-size:.68rem;padding:5px 11px}
  .qcard-text{font-size:1.4rem!important}
  .qcard-body{padding:20px 14px!important}
  .pan-h{padding:10px 12px;font-size:.72rem}
}

/* LIGHT MODE OVERRIDES */
[data-theme="light"] body{background:var(--bg)}
[data-theme="light"] .setup-card{background:rgba(255,255,255,.9);border-color:rgba(0,0,0,.1)}
[data-theme="light"] .setup-title{background:linear-gradient(135deg,#7c3aed,#2563eb);-webkit-background-clip:text;background-clip:text}
[data-theme="light"] .input-wrap{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.15)}
[data-theme="light"] .input-wrap input{color:#1e293b}
[data-theme="light"] .dash-nav{background:rgba(255,255,255,.85)}
[data-theme="light"] .cat-bar{background:rgba(0,0,0,.02)}
[data-theme="light"] .cat-btn{border-color:rgba(0,0,0,.1);color:#475569}
[data-theme="light"] .cat-btn:hover{color:#1e293b}
[data-theme="light"] .cat-btn.active{background:linear-gradient(135deg,rgba(139,92,246,.12),rgba(59,130,246,.08));color:#4c1d95}
[data-theme="light"] .pan-chat,.pan-lb{background:rgba(255,255,255,.6)}
[data-theme="light"] .cm:hover{background:rgba(0,0,0,.03)}
[data-theme="light"] .cm-n{color:#6d28d9}
[data-theme="light"] .cm-t{color:#1e293b}
[data-theme="light"] .qcard-label{color:#7c3aed}
[data-theme="light"] .qcard-idle .qcard-text{color:#94a3b8}
[data-theme="light"] .qcard-timer{color:#7c3aed}
[data-theme="light"] .wcard-name{background:linear-gradient(135deg,#d97706,#ea580c);-webkit-background-clip:text;background-clip:text}
[data-theme="light"] .wcard-badge{color:#b45309}
[data-theme="light"] .wcard-user{color:#92400e}
[data-theme="light"] .wcard-ans{color:#78350f}
[data-theme="light"] .lr{background:rgba(0,0,0,.02);border-color:rgba(0,0,0,.06)}
[data-theme="light"] .lr:hover{background:rgba(0,0,0,.04)}
[data-theme="light"] .lr:nth-child(1){background:rgba(251,191,36,.08);border-color:rgba(251,191,36,.3)}
[data-theme="light"] .lr:nth-child(2){background:rgba(148,163,184,.06);border-color:rgba(148,163,184,.2)}
[data-theme="light"] .lr:nth-child(3){background:rgba(251,146,60,.06);border-color:rgba(251,146,60,.2)}
[data-theme="light"] .lr-nm{color:#1e293b}
[data-theme="light"] .lr-sc{color:#7c3aed}
[data-theme="light"] .lr-rk{background:rgba(0,0,0,.04);border-color:rgba(0,0,0,.08);color:#475569}
[data-theme="light"] .na-btn{border-color:rgba(0,0,0,.12);color:#475569;background:rgba(0,0,0,.03)}
[data-theme="light"] .pan-h{color:#64748b}
[data-theme="light"] .home-btn{background:rgba(255,255,255,.7);border-color:rgba(0,0,0,.1)}