:root{--bg: #0f1117;--surface: #171b26;--surface-2: #1e2433;--border: #2a3144;--text: #e8eaef;--muted: #8b93a7;--accent: #6366f1;--accent-hover: #818cf8;--danger: #ef4444;--success: #22c55e;--radius: 10px;--font: "Segoe UI", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent-hover)}button,input,select,textarea{font:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1.25rem 1rem}.brand{font-size:1.35rem;font-weight:700;letter-spacing:-.02em;margin-bottom:2rem;padding:0 .5rem}.nav{display:flex;flex-direction:column;gap:.25rem;flex:1}.nav-link{display:block;padding:.65rem .75rem;border-radius:8px;color:var(--muted);text-decoration:none;transition:background .15s,color .15s}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-link.active{background:#6366f126;color:var(--accent-hover)}.sidebar-footer{border-top:1px solid var(--border);padding-top:1rem;display:flex;flex-direction:column;gap:.5rem}.user-email{font-size:.85rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis}.main{flex:1;padding:2rem;overflow:auto}.page-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}.page-header h1{margin:0;font-size:1.75rem}.page-center{min-height:100vh;display:grid;place-items:center;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.grid-cards{display:grid;gap:1rem}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--border)}th{font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}tr:last-child td{border-bottom:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1rem;border-radius:8px;border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-sm{padding:.35rem .65rem;font-size:.875rem}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--surface-2);color:var(--text);border-color:var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--muted)}.btn-danger{background:#ef444426;color:#fca5a5;border-color:#ef44444d}.btn-ghost{background:transparent;color:var(--muted)}.btn-ghost:hover:not(:disabled){color:var(--text)}label{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;color:var(--muted)}input,select,textarea{background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:.55rem .75rem}input:focus,select:focus,textarea:focus{outline:2px solid rgba(99,102,241,.4);border-color:var(--accent)}textarea{min-height:120px;resize:vertical}.form-grid{display:grid;gap:1rem}.form-grid-2{grid-template-columns:1fr 1fr}@media (max-width: 768px){.form-grid-2{grid-template-columns:1fr}.app-shell{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border)}.nav{flex-direction:row;flex-wrap:wrap}}.muted{color:var(--muted)}.alert{padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem}.alert-error{background:#ef44441f;color:#fca5a5;border:1px solid rgba(239,68,68,.25)}.alert-success{background:#22c55e1f;color:#86efac;border:1px solid rgba(34,197,94,.25)}.badge{display:inline-block;padding:.15rem .5rem;border-radius:999px;font-size:.75rem;background:var(--surface-2);color:var(--muted)}.badge-success{background:#22c55e26;color:#86efac}.badge-warn{background:#eab30826;color:#fde047}.row-actions{display:flex;gap:.5rem;flex-wrap:wrap}.login-page{min-height:100vh;display:grid;place-items:center;padding:1rem}.login-card{width:min(420px,100%);display:flex;flex-direction:column;gap:1rem}.login-card h1{margin:0}.section-title{margin:1.5rem 0 .75rem;font-size:1rem;color:var(--muted)}.empty-state{text-align:center;padding:3rem 1rem;color:var(--muted)}.tabs{display:flex;gap:.5rem;margin-bottom:1rem}.tab{padding:.5rem 1rem;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer}.tab.active{background:#6366f126;color:var(--accent-hover);border-color:#6366f159}