:root{--bg: #0f1117;--surface: #171a23;--surface-2: #1f2330;--border: #2a2f3d;--text: #e6e8ee;--text-dim: #9aa1b1;--accent: #6d5efc;--accent-2: #22b8cf;--good: #37b24d;--warn: #f59f00;--bad: #f03e3e;--radius: 12px;--shadow: 0 6px 24px rgba(0, 0, 0, .35)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Heebo,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer;border:none;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;transition:transform .05s ease,opacity .15s ease,background .15s ease}button:active{transform:translateY(1px)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:#7d70ff}.btn-ghost{background:var(--surface-2);color:var(--text)}.btn-ghost:hover{background:#262b3a}.btn-danger{background:transparent;color:var(--bad);border:1px solid var(--bad)}.btn-sm{padding:6px 12px;font-size:13px}input,select,textarea{font-family:inherit;font-size:14px;background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:10px 12px;width:100%}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}.field{margin-bottom:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.muted{color:var(--text-dim)}.tiny{font-size:12px}.app{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--surface);border-inline-start:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column;gap:6px;position:sticky;top:0;height:100vh}.brand{font-weight:800;font-size:20px;padding:8px 12px 18px;letter-spacing:-.5px}.brand .dot{color:var(--accent)}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-dim);font-weight:600;font-size:14px}.nav-link:hover{background:var(--surface-2);color:var(--text);text-decoration:none}.nav-link.active{background:var(--accent);color:#fff}.nav-spacer{flex:1}.main{flex:1;padding:28px 32px;overflow-x:hidden}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;gap:16px;flex-wrap:wrap}.page-head h1{margin:0;font-size:24px}.kpi-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:22px}.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}.kpi .k-val{font-size:30px;font-weight:800;letter-spacing:-1px}.kpi .k-label{color:var(--text-dim);font-size:13px;margin-top:2px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:start;padding:12px 14px;border-bottom:1px solid var(--border)}th{color:var(--text-dim);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}tbody tr:hover{background:var(--surface-2)}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}.badge-on{background:#37b24d26;color:#69db7c}.badge-off{background:#f03e3e26;color:#ff8787}.badge-type{background:var(--surface-2);color:var(--text-dim)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media (max-width: 900px){.grid-2,.grid-3{grid-template-columns:1fr}}.section-title{font-size:14px;font-weight:700;margin:0 0 14px;color:var(--text-dim)}.chart-box{height:260px}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.toolbar input,.toolbar select{width:auto}.alert-warn{background:#f59f001f;border:1px solid rgba(245,159,0,.4);color:#ffd43b;padding:10px 14px;border-radius:10px;font-size:13px;margin-top:10px}.center-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.auth-card{width:380px;max-width:100%}.short-url{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--accent-2)}.heatmap{display:grid;grid-template-columns:auto repeat(24,1fr);gap:3px}.heatmap .hm-cell{aspect-ratio:1;border-radius:3px;background:var(--surface-2)}.heatmap .hm-label{font-size:11px;color:var(--text-dim);display:flex;align-items:center;justify-content:center}