:root{--bg:#f4f5f7;--panel:#fff;--black:#0c0c0d;--gold:#c9a227;--text:#191919;--muted:#777;--green:#168a49;--red:#bd2a2a}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
aside{background:var(--black);color:white;padding:28px 20px;position:sticky;top:0;height:100vh}
.brand{font-size:24px;font-weight:900;letter-spacing:1px;color:var(--gold)}.muted{color:#999;font-size:12px;margin-top:5px}
nav{margin-top:35px;display:grid;gap:10px}nav a{color:#ddd;text-decoration:none;padding:11px 12px;border-radius:9px}nav a:hover{background:#1b1b1c;color:white}
main{padding:32px;max-width:1400px;width:100%}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
h1,h2{margin:0 0 8px}p{color:var(--muted)}
button{border:0;background:#151515;color:white;border-radius:8px;padding:11px 15px;font-weight:700;cursor:pointer}
button.gold{background:var(--gold);color:#111;padding:14px 18px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}
.card{background:var(--panel);border-radius:16px;padding:22px;box-shadow:0 5px 22px rgba(0,0,0,.05);margin-bottom:22px}
.stat span{display:block;color:var(--muted);font-size:13px}.stat strong{font-size:36px;margin-top:8px;display:block}
.inline-form,.pair-form{display:flex;gap:10px;flex-wrap:wrap;margin:15px 0}
input,select{border:1px solid #ddd;border-radius:8px;padding:11px 12px;background:white}
.pair-code{font-size:23px;font-weight:900;letter-spacing:5px;width:150px;text-align:center}
.pending{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:13px;color:#666}.pending span{background:#111;color:#d3ad32;border-radius:8px;padding:8px 12px;font-size:18px;font-weight:900;letter-spacing:3px}
.table{margin-top:14px;border:1px solid #eee;border-radius:10px;overflow:hidden}
.tr{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:12px;padding:12px 14px;border-bottom:1px solid #eee;align-items:center}
.tr:last-child{border-bottom:0}.tr.head{background:#fafafa;font-size:12px;text-transform:uppercase;color:#777;font-weight:800}
.price-form{display:flex;gap:8px}.price-form input{max-width:100px}.chips{display:flex;gap:10px;flex-wrap:wrap}.chips span{background:#f4f4f4;border-radius:999px;padding:9px 13px}
.status{font-weight:800}.online{color:var(--green)}.offline{color:var(--red)}.alert{background:#fff2f2;color:#9a1e1e;border:1px solid #f0c8c8;padding:12px 14px;border-radius:10px;margin-bottom:16px}
@media(max-width:900px){.shell{grid-template-columns:1fr}aside{height:auto;position:relative}.cards{grid-template-columns:1fr}.tr{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:16px;flex-direction:column}}