body { margin:0; font-family: Arial, sans-serif; background:#f6f8fb; }
a { text-decoration:none; }
/* Auth */
.auth-body { display:flex; justify-content:center; align-items:center; height:100vh; }
.auth-card { background:#fff; padding:24px; border-radius:8px; width:320px; box-shadow:0 4px 12px rgba(0,0,0,.1); }
.auth-card h1 { margin:0 0 16px; font-size:20px; }
.auth-card label { display:block; margin-bottom:12px; font-size:14px; }
.auth-card input { width:100%; padding:8px; margin-top:4px; border:1px solid #ccc; border-radius:6px; }
.btn { padding:10px; border:0; border-radius:6px; cursor:pointer; }
.btn.primary { background:#d32f2f; color:#fff; width:100%; margin-top:12px; }
.muted { font-size:13px; color:#666; margin-top:12px; text-align:center; }
.brand { color:#d32f2f; font-weight:bold; margin-bottom:10px; }
/* App */
.app-body { display:grid; grid-template-columns:240px 1fr; min-height:100vh; }
.sidebar { background:#0f172a; color:#fff; padding:20px; }
.logo { font-weight:bold; font-size:18px; margin-bottom:20px; }
.nav-item { display:block; padding:10px; margin-bottom:8px; border-radius:6px; color:#fff; }
.nav-item.active, .nav-item:hover { background:rgba(255,255,255,.1); }
.topbar { display:flex; align-items:center; padding:10px 20px; background:#fff; border-bottom:1px solid #eee; }
.burger { background:none; border:0; font-size:20px; margin-right:12px; cursor:pointer; }
.title { font-weight:bold; }
.profile { margin-left:auto; position:relative; }
.avatar { width:32px; height:32px; border-radius:50%; cursor:pointer; }
.dropdown { display:none; position:absolute; top:40px; right:0; background:#fff; border:1px solid #eee; border-radius:6px; min-width:150px; box-shadow:0 4px 8px rgba(0,0,0,.1); }
.profile:hover .dropdown { display:block; }
.d-item { display:block; padding:8px 12px; color:#333; }
.d-item:hover { background:#f6f6f6; }
.content { padding:20px; }
.cards { display:flex; gap:12px; margin-top:20px; }
.card { flex:1; background:#fff; padding:16px; border-radius:8px; box-shadow:0 2px 6px rgba(0,0,0,.08); }
@media(max-width:768px){ .app-body{grid-template-columns:1fr;} .sidebar{position:fixed;left:-240px;top:0;bottom:0;transition:.3s;} .sidebar.open{left:0;} }