/* CalendarSync Admin - Minimal CSS */
:root {
    --bg: #f8f9fa;
    --card-bg: #fff;
    --text: #212529;
    --text-muted: #6c757d;
    --primary: #0d6efd;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #0dcaf0;
    --border: #dee2e6;
    --sidebar-bg: #1a1d23;
    --sidebar-text: #adb5bd;
    --sidebar-active: #0d6efd;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.5; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--sidebar-bg); color: var(--sidebar-text); padding: 0; flex-shrink: 0; position: fixed; height: 100vh; overflow-y: auto; }
.sidebar .brand { padding: 20px; font-size: 18px; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar nav a { display: block; padding: 10px 20px; color: var(--sidebar-text); transition: 0.15s; font-size: 13px; }
.sidebar nav a:hover, .sidebar nav a.active { background: rgba(255,255,255,0.08); color: #fff; text-decoration: none; }
.sidebar nav a.active { border-left: 3px solid var(--sidebar-active); }
.sidebar nav .section-title { padding: 15px 20px 5px; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,0.3); }
.sidebar nav .nav-info { display: block; padding: 6px 20px; font-size: 12px; color: rgba(255,255,255,0.4); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.main-content { flex: 1; margin-left: 240px; padding: 24px; }

/* Cards */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; margin-bottom: 16px; }
.card-header { font-size: 16px; font-weight: 600; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; margin-top: 4px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { font-weight: 600; background: var(--bg); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); }
tr:hover { background: #f1f3f5; }

/* Buttons */
.btn { display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid transparent; cursor: pointer; font-size: 13px; font-weight: 500; transition: 0.15s; text-align: center; }
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #000; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 13px; }
.form-control { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; background: #fff; }
select.form-control { appearance: auto; }
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(13,110,253,0.15); }
.form-inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.form-check { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.form-check input[type="checkbox"] { width: 16px; height: 16px; }

/* Badges */
.badge { display: inline-block; padding: 3px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.badge-success { background: #d1e7dd; color: #0f5132; }
.badge-danger { background: #f8d7da; color: #842029; }
.badge-warning { background: #fff3cd; color: #664d03; }
.badge-info { background: #cff4fc; color: #055160; }
.badge-secondary { background: #e2e3e5; color: #41464b; }

/* Alerts / Flash */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; }
.alert-success { background: #d1e7dd; color: #0f5132; border: 1px solid #badbcc; }
.alert-error, .alert-danger { background: #f8d7da; color: #842029; border: 1px solid #f5c2c7; }
.alert-warning { background: #fff3cd; color: #664d03; border: 1px solid #ffecb5; }
.alert-info { background: #cff4fc; color: #055160; border: 1px solid #b6effb; }

/* Page Header */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.page-header h1 { font-size: 22px; font-weight: 700; }

/* Test Results */
.test-result { margin-bottom: 8px; padding: 8px 12px; border-radius: 4px; font-size: 13px; }
.test-pass { background: #d1e7dd; }
.test-fail { background: #f8d7da; }
.test-error { background: #f8d7da; }
.test-error-detail { margin-top: 4px; font-family: monospace; font-size: 12px; white-space: pre-wrap; color: #842029; }

/* Conflict View */
.conflict-sides { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.conflict-side { border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.conflict-side h3 { margin-bottom: 12px; font-size: 14px; }
.field-diff { padding: 6px 0; border-bottom: 1px solid var(--border); }
.field-diff .field-name { font-weight: 600; font-size: 12px; text-transform: uppercase; color: var(--text-muted); }
.field-diff .field-value { margin-top: 2px; }
.field-changed { background: #fff3cd; padding: 2px 6px; border-radius: 3px; }

/* Pagination */
.pagination { display: flex; gap: 4px; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--border); border-radius: 4px; font-size: 13px; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Utility */
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.d-flex { display: flex; }
.gap-2 { gap: 8px; }
.align-center { align-items: center; }

/* Minimal layout (login, install) */
.minimal-container { max-width: 420px; margin: 80px auto; padding: 0 20px; }
.minimal-container .card { padding: 32px; }
.minimal-container h1 { text-align: center; margin-bottom: 24px; font-size: 22px; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .conflict-sides { grid-template-columns: 1fr; }
}