:root{--bg:#0d1b2a;--panel:#14263b;--panel2:#1b324c;--txt:#e8eef5;--muted:#9fb3c8;--pri:#2f80ed;--ok:#21c37d;--bad:#ff6b6b;--warn:#f2c94c;--radius:12px}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--txt);min-height:100vh;display:flex;flex-direction:column}
main{width:100%;max-width:1200px;margin:0 auto;padding:20px;flex:1}
.hidden{display:none!important}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:#0a1522;border-bottom:1px solid #22384f}
.brand{font-weight:700;font-size:20px;display:flex;gap:10px;align-items:center}
.userbox{display:flex;gap:10px;align-items:center}
.card{background:var(--panel);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:0 4px 18px rgba(0,0,0,.25)}
h1{margin:0 0 6px}h2{margin:0 0 12px;font-size:20px}h3{margin:22px 0 10px;font-size:16px}
.muted{color:var(--muted)}.small{font-size:13px}
.btn{border:0;border-radius:8px;padding:9px 16px;font-size:14px;cursor:pointer;text-decoration:none;display:inline-block;color:var(--txt)}
.btn.primary{background:var(--pri)}.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent;border:1px solid #35506d}.btn.ghost:hover{background:var(--panel2)}
.btn.sm{padding:5px 9px;font-size:12px}.btn.danger{background:#7a2530}
.btn:disabled{opacity:.5;cursor:not-allowed}
.link{background:none;border:0;color:var(--pri);cursor:pointer;padding:0;font-size:14px;text-align:left}
.banner{max-width:1200px;margin:16px auto 0;padding:12px 16px;border-radius:8px;width:calc(100% - 40px)}
.banner.ok{background:#12452f}.banner.bad{background:#5a1e25}
.auth{display:flex;justify-content:center}.auth-card{width:100%;max-width:440px;margin-top:30px}
.tabs{display:flex;gap:6px;margin:18px 0}
.tab{flex:1;padding:10px;border:1px solid #35506d;background:transparent;color:var(--txt);border-radius:8px;cursor:pointer}
.tab.active{background:var(--pri);border-color:var(--pri)}
.form{display:flex;flex-direction:column;gap:12px}
label{display:flex;flex-direction:column;gap:6px;font-size:14px}
label.inline{flex-direction:row;align-items:center;gap:8px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=search],select{padding:10px;border-radius:8px;border:1px solid #35506d;background:#0f2134;color:var(--txt);font-size:14px}
.hint{font-size:12px;color:var(--muted);margin:-6px 0 0}
.msg{min-height:20px;margin:14px 0 0;font-size:14px}.msg.ok{color:var(--ok)}.msg.bad{color:var(--bad)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}.stat .label{color:var(--muted);font-size:13px}.stat .value{font-size:28px;font-weight:700}
.grid{display:grid;grid-template-columns:1.2fr 1fr;gap:20px}
.games{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.game{background:var(--panel2);border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:8px}
.game h4{margin:0}.game p{margin:0;font-size:13px;color:var(--muted);flex:1}
.game .meta{font-size:12px;color:var(--muted)}
.chartwrap{height:220px}
.leaders{padding-left:22px;margin:12px 0 0}.leaders li{padding:4px 0}
.gamehead{display:flex;justify-content:space-between;align-items:center}
.q{background:var(--panel2);border-radius:10px;padding:14px;margin:12px 0}
.q p{margin:0 0 10px;font-weight:600}
.opt{display:flex;flex-direction:row;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:8px;border:1px solid transparent;cursor:pointer;font-size:14px}
.opt:hover{background:#21405f}
.opt.correct{border-color:var(--ok)}.opt.wrong{border-color:var(--bad)}
.email{background:#f5f7fa;color:#1c2b3a;border-radius:8px;padding:14px;font-size:14px}
.email .hdr{border-bottom:1px solid #d5dde6;padding-bottom:8px;margin-bottom:8px}
.email pre{white-space:pre-wrap;font-family:inherit;margin:0}
.match{display:grid;grid-template-columns:1fr 2fr;gap:10px;align-items:center;margin:8px 0}
.sortboard{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.bin{background:var(--panel2);border-radius:10px;padding:10px;min-height:220px;border:2px dashed transparent}
.bin.over{border-color:var(--pri)}.bin h4{margin:0 0 8px}
.chip{background:#2a4766;border-radius:8px;padding:8px;margin:6px 0;cursor:grab;font-size:13px;display:flex;justify-content:space-between;gap:6px}
.chip.correct{outline:2px solid var(--ok)}.chip.wrong{outline:2px solid var(--bad)}
.chip .mv{display:flex;gap:4px}
.code{background:#0a1522;border-radius:8px;padding:8px;font-family:Consolas,monospace;font-size:13px;overflow-x:auto}
.line{display:flex;gap:10px;padding:3px 6px;border-radius:4px;cursor:pointer;white-space:pre}
.line:hover{background:#1b324c}.line.sel{background:#4b3a12}
.line.correct{outline:1px solid var(--ok)}.line.missed{outline:1px dashed var(--warn)}.line.wrong{outline:1px solid var(--bad)}
.line .no{color:#5f7a96;min-width:22px;text-align:right}
.result{background:var(--panel2);border-radius:10px;padding:16px;margin-top:16px}
.result .big{font-size:26px;font-weight:700}
.actions{margin-top:16px;display:flex;gap:10px}
.admin-settings{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end}
.filter{width:100%;max-width:340px;margin-bottom:10px}
.tablewrap{overflow-x:auto;max-height:420px;overflow-y:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:8px;border-bottom:1px solid #22384f;text-align:left;vertical-align:middle}
th{position:sticky;top:0;background:var(--panel)}
td .btn{margin:2px}
.badge{padding:2px 8px;border-radius:10px;font-size:11px}.badge.ok{background:#12452f}.badge.bad{background:#5a1e25}.badge.warn{background:#5a4a12}
.foot{text-align:center;color:var(--muted);font-size:12px;padding:16px}
@media(max-width:900px){.grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.sortboard{grid-template-columns:1fr}}