:root{--bg:#0f1419;--card:#1a2332;--border:#2d3a4f;--text:#e7ecf3;--muted:#8b9cb3;--accent:#3b82f6;--success:#22c55e;--warn:#f59e0b}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text)}.login-page{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:#000 url(/images/login-hero.png) 50%/cover no-repeat}.login-page:before{content:"";position:absolute;inset:0;background:rgba(15,20,25,.78);pointer-events:none}.login-form{position:relative;z-index:1;width:100%;max-width:380px}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font:inherit}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}.btn{background:var(--accent);color:white;border:none;border-radius:8px;padding:8px 16px;cursor:pointer}.btn.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}.input{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#0d1117;color:var(--text)}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#243044}.badge.online{background:#14532d;color:#86efac}.badge.mobile{background:#1e3a5f;color:#93c5fd}.layout{display:flex;min-height:100vh;width:100%}.sidebar{flex-shrink:0;background:var(--card);border-right:1px solid var(--border);padding:20px 16px;overflow-x:hidden;overflow-y:auto;box-sizing:border-box}.sidebar-resizer{flex-shrink:0;width:6px;margin:0 -3px;cursor:col-resize;z-index:20;background:transparent;transition:background .15s}.sidebar-resizer.dragging,.sidebar-resizer:hover{background:var(--accent)}.sidebar-brand{text-align:center;margin-bottom:16px}.sidebar-brand-title{margin:12px 0 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