/* ============================================
   RENT HUB Admin Panel Styles
   ============================================ */

:root {
    --primary: #4a90d9;
    --primary-dark: #357abd;
    --primary-light: #e3f2fd;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --dark: #2c3e50;
    --darker: #1a252f;
    --light: #f8f9fa;
    --text-dark: #2c3e50;
    --text-medium: #5a6c7d;
    --text-light: #95a5a6;
    --border: #e1e8ed;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #f0f4f8;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Login Page */
.admin-login-body {
    background: linear-gradient(135deg, #2c3e50 0%, #4a90d9 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-login-container { width: 100%; max-width: 420px; padding: 20px; }

.admin-login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.admin-login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.admin-login-logo i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 10px;
}

.admin-login-logo h2 {
    color: var(--dark);
    font-size: 1.5rem;
}

.admin-login-form .form-group {
    margin-bottom: 20px;
}

.admin-login-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-medium);
    font-size: 0.9rem;
}

.admin-login-form label i {
    margin-right: 6px;
    color: var(--primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235a6c7d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(74, 144, 217, 0.3);
}

.btn-success { background: linear-gradient(135deg, #27ae60, #1e8449); color: white; }
.btn-danger { background: linear-gradient(135deg, #e74c3c, #c0392b); color: white; }
.btn-warning { background: linear-gradient(135deg, #f39c12, #e67e22); color: white; }
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover { background: var(--primary); color: white; }

.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* Layout */
.admin-body {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: width 0.3s;
    z-index: 1000;
}

.sidebar-collapsed .admin-sidebar {
    width: var(--sidebar-collapsed);
}

.sidebar-collapsed .admin-sidebar span,
.sidebar-collapsed .admin-sidebar-header span {
    display: none;
}

.admin-sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    font-weight: 700;
}

.admin-sidebar-header i { font-size: 1.5rem; color: var(--primary); }

.admin-nav { padding: 16px 0; }

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
    font-size: 0.95rem;
}

.admin-nav-item:hover,
.admin-nav-item.active {
    color: white;
    background: rgba(74, 144, 217, 0.15);
    border-left: 3px solid var(--primary);
}

.admin-nav-item i { width: 20px; text-align: center; font-size: 1.1rem; }

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 700;
}

.admin-nav-divider {
    height: 1px;
    background: rgba(255,255,255,0.1);
    margin: 16px 20px;
}

.admin-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left 0.3s;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar-collapsed .admin-main {
    margin-left: var(--sidebar-collapsed);
}

/* Top Bar */
.admin-topbar {
    background: white;
    padding: 16px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--text-medium);
    cursor: pointer;
    padding: 8px;
}

.admin-topbar-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.admin-notification {
    position: relative;
    font-size: 1.2rem;
    color: var(--text-medium);
    cursor: pointer;
}

.notification-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 10px;
    height: 10px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid white;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.admin-user i { font-size: 1.4rem; color: var(--primary); }

/* Content */
.admin-content {
    padding: 30px;
    flex: 1;
}

.admin-page-header {
    margin-bottom: 30px;
}

.admin-page-header h1 {
    font-size: 1.8rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-page-header h1 i { color: var(--primary); }

.admin-page-header p { color: var(--text-medium); margin-top: 4px; }

/* Stats Grid */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.admin-stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.admin-stat-card:hover { transform: translateY(-4px); }

.admin-stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.4rem;
}

.admin-stat-info h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    line-height: 1;
}

.admin-stat-info p {
    color: var(--text-medium);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* Sections */
.admin-section {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.admin-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.admin-section-header h2 {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-section-header h2 i { color: var(--primary); }

.notification-badge {
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 12px;
    margin-left: 8px;
}

/* Notification Groups */
.notification-group {
    margin-bottom: 24px;
}

.notification-group:last-child { margin-bottom: 0; }

.notification-group h3 {
    font-size: 1rem;
    color: var(--text-medium);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notification-group h3 i { color: var(--warning); }

/* Tables */
.table-responsive { overflow-x: auto; }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.admin-table th {
    background: var(--light);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-medium);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.admin-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-dark);
}

.admin-table tr:hover td { background: var(--primary-light); }

.admin-table code {
    background: #f4f4f4;
    padding: 3px 8px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.85rem;
}

.admin-table small {
    color: var(--text-light);
    font-size: 0.8rem;
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.alert-success { background: #d4edda; color: #155724; border-left: 4px solid var(--success); }
.alert-danger { background: #f8d7da; color: #721c24; border-left: 4px solid var(--danger); }
.alert-warning { background: #fff3cd; color: #856404; border-left: 4px solid var(--warning); }

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.6;
}

.alert-close:hover { opacity: 1; }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

.empty-state i { margin-bottom: 12px; }

/* Footer */
.admin-footer {
    background: white;
    padding: 20px 30px;
    text-align: center;
    color: var(--text-light);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
}

.pagination a {
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-medium);
    background: white;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.pagination a:hover,
.pagination a.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-medium);
    font-size: 0.9rem;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-active { background: #d4edda; color: #155724; }
.status-pending { background: #fff3cd; color: #856404; }
.status-inactive { background: #f8d7da; color: #721c24; }

/* Responsive */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    .admin-sidebar.open {
        transform: translateX(0);
        width: var(--sidebar-width);
    }
    .admin-main {
        margin-left: 0;
    }
    .admin-stats-grid {
        grid-template-columns: 1fr;
    }
    .admin-content {
        padding: 16px;
    }
}