:root{--bg: #0f0f12;--surface: #1a1a1f;--border: #2a2a32;--text: #e8e8ed;--muted: #8888a0;--accent: #6366f1;--accent-hover: #818cf8;--success: #22c55e;--warning: #eab308;font-family:DM Sans,Segoe UI,system-ui,sans-serif;line-height:1.5;color:var(--text);background:var(--bg)}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}button{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:.5rem 1rem;background:var(--accent);color:#fff}button:hover{background:var(--accent-hover)}button:disabled{opacity:.6;cursor:not-allowed}input,select{font:inherit;padding:.5rem .75rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:.875rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.25rem}.loading,.error{color:var(--muted);padding:2rem;text-align:center}.error{color:#ef4444}.layout-admin{display:flex;min-height:100vh}.layout-sidebar{width:220px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);padding:1rem 0}.layout-sidebar .nav-link{display:block;padding:.75rem 1.25rem;color:var(--text);font-weight:400;text-decoration:none}.layout-sidebar .nav-link:hover{background:#6366f11a;color:var(--accent);text-decoration:none}.layout-sidebar .nav-link.active{color:var(--accent);font-weight:600;border-right:3px solid var(--accent);background:#6366f114;text-decoration:none}.layout-main{flex:1;display:flex;flex-direction:column;min-width:0}.layout-header{height:56px;flex-shrink:0;padding:0 1.5rem;border-bottom:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:flex-end;gap:1rem}.layout-header .user-info{color:var(--muted);font-size:.875rem}.layout-header .btn-logout{padding:.4rem .75rem;font-size:.875rem;background:transparent;border:1px solid var(--border);color:var(--text)}.layout-header .btn-logout:hover{background:#ef444426;border-color:#ef4444;color:#ef4444}.layout-content{flex:1;padding:1.5rem;overflow:auto}