:root{--bg:#0b1017;--card:#141d28;--card2:#192534;--text:#f4f7fb;--muted:#9fb0c3;--blue:#2387ff;--green:#24c477;--red:#ff5c68;--amber:#ffbd3f;--line:#26384b}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.shell{display:grid;grid-template-columns:245px 1fr;min-height:100vh}.side{background:#0d151f;border-right:1px solid var(--line);padding:24px 16px}.brand{font-size:21px;font-weight:800;margin:0 8px 26px}.brand span{color:var(--blue)}nav a{display:block;padding:11px 12px;border-radius:10px;color:var(--muted);margin:4px 0}nav a:hover,nav a.active{background:var(--card2);color:white}.main{padding:28px;max-width:1450px;width:100%}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.top h1{margin:0;font-size:28px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}.metric{font-size:28px;font-weight:800;margin-top:8px}.wide{grid-column:span 2}.full{grid-column:1/-1}.btn{display:inline-block;border:0;border-radius:10px;padding:10px 14px;background:var(--blue);color:white;font-weight:700;cursor:pointer}.btn.secondary{background:#26384b}.btn.danger{background:var(--red)}input,textarea,select{width:100%;background:#0d151f;color:white;border:1px solid var(--line);border-radius:10px;padding:11px;margin:6px 0 14px}textarea{min-height:130px}.status{display:inline-block;padding:5px 9px;border-radius:99px;font-size:12px;font-weight:800}.ok{background:#143d2b;color:#7cf0b2}.warn{background:#49391a;color:#ffd276}.bad{background:#4a1f25;color:#ff9ba3}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px;border-bottom:1px solid var(--line);font-size:14px}.login{max-width:460px;margin:10vh auto;padding:28px}.notice{padding:12px;border-radius:10px;background:#182a3b;margin-bottom:15px}.error{background:#452027}.chat{height:430px;overflow:auto;background:#0d151f;border:1px solid var(--line);border-radius:12px;padding:15px;margin-bottom:12px}.bubble{padding:11px 13px;border-radius:12px;background:#18283a;margin:8px 0}.bubble.me{background:#17375c}@media(max-width:900px){.shell{grid-template-columns:1fr}.side{position:relative;border-right:0;border-bottom:1px solid var(--line)}nav{display:flex;overflow:auto;gap:4px}nav a{white-space:nowrap}.grid{grid-template-columns:1fr 1fr}.main{padding:18px}}@media(max-width:560px){.grid{grid-template-columns:1fr}.wide{grid-column:auto}.top{align-items:flex-start;gap:12px;flex-direction:column}}