:root{--accent: #1d4ed8;--accent-hover: #1e40af;--accent-soft: #eff6ff;--sidebar: #0f172a;--sidebar-muted: #94a3b8;--sidebar-active: #1e293b;--bg: #f1f5f9;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--text-muted: #64748b;--danger: #b91c1c;--radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg);font-size:14px;line-height:1.5}h1,h2,h3{margin:0;font-weight:600}a{color:inherit;text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:236px;flex-shrink:0;background:var(--sidebar);color:#e2e8f0;display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:6px 8px 20px}.brand-mark{background:var(--accent);color:#fff;font-weight:700;letter-spacing:.5px;padding:6px 9px;border-radius:6px;font-size:13px}.brand-text{font-size:13px;color:var(--sidebar-muted)}.sidebar-nav{display:flex;flex-direction:column;gap:2px;flex:1}.nav-item{padding:9px 12px;border-radius:6px;color:var(--sidebar-muted);font-weight:500;transition:background .12s,color .12s}.nav-item:hover{background:var(--sidebar-active);color:#fff}.nav-item.active{background:var(--accent);color:#fff}.sidebar-logout{margin-top:12px;color:var(--sidebar-muted);border-color:#334155}.sidebar-logout:hover{color:#fff;background:var(--sidebar-active)}.content{flex:1;padding:32px 40px;max-width:1100px}.page-title{font-size:22px;margin-bottom:4px}.page-subtitle{color:var(--text-muted);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.crud-form{margin-bottom:20px}.crud-form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field-label{font-size:12px;font-weight:600;color:var(--text-muted)}.req{color:var(--danger);margin-left:2px}.input{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.input:disabled{background:#f8fafc;color:var(--text-muted)}.crud-form-actions{display:flex;gap:10px;margin-top:18px}.btn{padding:8px 16px;border-radius:6px;border:1px solid transparent;font-size:14px;font-weight:500;font-family:inherit;cursor:pointer;background:#fff}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-ghost:hover{background:#f8fafc}.btn-link{background:none;border:none;color:var(--accent);padding:4px 8px;font-weight:500}.btn-link:hover{text-decoration:underline}.btn-danger{color:var(--danger)}.table-wrap{padding:0;overflow-x:auto}.table{width:100%;border-collapse:collapse;font-size:14px}.table th{text-align:left;padding:12px 16px;background:#f8fafc;border-bottom:1px solid var(--border);color:var(--text-muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.4px;white-space:nowrap}.table td{padding:11px 16px;border-bottom:1px solid var(--border);vertical-align:middle}.table tr:last-child td{border-bottom:none}.table tbody tr:hover{background:#f8fafc}.col-actions{text-align:right;white-space:nowrap}.table-empty{text-align:center;color:var(--text-muted);padding:32px}.alert-error{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);padding:10px 14px;border-radius:6px;margin:0 0 16px}.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.home-card{display:flex;flex-direction:column;gap:4px;transition:border-color .12s,box-shadow .12s}.home-card:hover{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.home-card-count{font-weight:700;font-size:26px;color:var(--accent);line-height:1.1}.home-card-title{font-weight:500;font-size:14px;color:var(--text-muted)}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px}.auth-brand{display:flex;align-items:center;gap:10px;margin-bottom:4px}.auth-title{font-size:20px;margin-bottom:4px}.auth-subtitle{color:var(--text-muted);margin:0 0 24px;font-size:14px}.auth-fields{display:flex;flex-direction:column;gap:14px}.auth-actions{display:flex;gap:10px;margin-top:20px}.auth-actions .btn{flex:1}.auth-msg{margin:16px 0 0;font-size:13px;color:var(--text-muted)}.auth-msg.error{color:var(--danger)}