/* Minimal Modern Admin Dashboard - Clean & Simple */
:root {
    --primary: #0f766e;
    --primary-dark: #0b5c56;
    --primary-light: #14b8a6;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

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

body.admin-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sidebar - Minimal & Clean */
.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-brand {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
}

.sidebar-brand-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.sidebar-brand-mark {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.sidebar-brand-copy strong {
    display: block;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.sidebar-brand-copy small {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.125rem;
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0.75rem;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

.menu-section {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 1rem 0.75rem 0.5rem;
    margin-top: 0.5rem;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    margin-bottom: 0.25rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    position: relative;
}

.menu-item:hover {
    background: var(--bg-main);
    color: var(--text-primary);
}

.menu-item.active {
    background: var(--primary);
    color: white;
    font-weight: 600;
}

.menu-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.menu-label {
    flex: 1;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-light);
}

.sidebar-status {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem;
    background: var(--bg-main);
    border-radius: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    flex-shrink: 0;
}

.status-text small {
    display: block;
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-text strong {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 0.125rem;
}

/* Sidebar Overlay */
.admin-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.admin-sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* Main Wrapper */
.admin-wrapper {
    margin-left: 260px;
    min-height: 100vh;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Topbar - Clean & Minimal */
.admin-topbar {
    position: sticky;
    top: 0;
    z-index: 900;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-icon-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.topbar-icon-btn:hover {
    background: var(--bg-main);
    border-color: var(--primary);
    color: var(--primary);
}

.topbar-title-wrap small {
    display: block;
    font-size: 0.6875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.topbar-title-wrap h5 {
    margin: 0.25rem 0 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.topbar-link-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    border: 1px solid var(--border);
}

.topbar-link-btn:hover {
    background: var(--bg-main);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.375rem 0.75rem 0.375rem 0.375rem;
    background: var(--bg-main);
    border-radius: 999px;
    border: 1px solid var(--border);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Main Content */
.admin-content {
    padding: 1.5rem;
}

/* Cards - Minimal Design */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 1.25rem;
    font-weight: 700;
    font-size: 0.9375rem;
}

.card-body {
    padding: 1.25rem;
}

/* Stat Cards - Simple & Clean */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.2s ease;
    position: relative;
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: white;
}

.stat-icon.primary {
    background: var(--primary);
}

.stat-icon.secondary {
    background: var(--secondary);
}

.stat-icon.warning {
    background: var(--warning);
}

.stat-icon.success {
    background: var(--success);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Buttons - Minimal Style */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

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

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

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
    background: transparent;
}

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

.btn-outline-secondary {
    border-color: var(--border);
    color: var(--text-secondary);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--bg-main);
}

.btn-outline-danger {
    border-color: var(--danger);
    color: var(--danger);
    background: transparent;
}

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

/* Forms - Clean Design */
.form-control, .form-select {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    background: var(--bg-card);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

/* Tables - Minimal & Clean */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: var(--bg-main);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    padding: 0.75rem 1rem;
    border: none;
    border-bottom: 1px solid var(--border);
}

.table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 0.875rem;
}

.table tbody tr {
    transition: background 0.15s ease;
}

.table tbody tr:hover {
    background: var(--bg-main);
}

/* Badges - Simple Design */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.bg-primary, .badge-primary {
    background: var(--primary);
    color: white;
}

.bg-success, .badge-success {
    background: var(--success);
    color: white;
}

.bg-warning, .badge-warning {
    background: var(--warning);
    color: white;
}

.bg-danger, .badge-danger {
    background: var(--danger);
    color: white;
}

.bg-info, .badge-info {
    background: var(--info);
    color: white;
}

/* Alerts - Minimal */
.alert {
    border: 1px solid;
    border-radius: 8px;
    padding: 1rem;
    font-size: 0.875rem;
}

.alert-info {
    background: #f0f9ff;
    border-color: #bae6fd;
    color: #075985;
}

.alert-success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.alert-warning {
    background: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

.alert-danger {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

/* Collapsed Sidebar */
body.admin-collapsed .admin-sidebar {
    width: 70px;
}

body.admin-collapsed .admin-wrapper {
    margin-left: 70px;
}

body.admin-collapsed .sidebar-brand-copy,
body.admin-collapsed .menu-label,
body.admin-collapsed .menu-section,
body.admin-collapsed .status-text {
    display: none;
}

body.admin-collapsed .menu-item {
    justify-content: center;
    padding: 0.625rem;
}

body.admin-collapsed .sidebar-status {
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 991.98px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .admin-wrapper {
        margin-left: 0;
    }
    
    body.admin-collapsed .admin-wrapper {
        margin-left: 0;
    }
}

@media (max-width: 767.98px) {
    .admin-topbar {
        padding: 0.75rem 1rem;
    }
    
    .topbar-title-wrap h5 {
        font-size: 1.125rem;
    }
    
    .admin-content {
        padding: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .topbar-user > div:not(.user-avatar) {
        display: none;
    }
}

@media (max-width: 575.98px) {
    .topbar-link-btn {
        display: none !important;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.125rem;
    }
}

/* Dropdown Menu */
.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    background: var(--bg-card);
}

.dropdown-item {
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    transition: background 0.15s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.dropdown-item:hover {
    background: var(--bg-main);
}

/* DataTables Styling */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.375rem 0.625rem;
    font-size: 0.875rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 6px !important;
    margin: 0 2px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary) !important;
    color: white !important;
    border: none !important;
}

/* Utility Classes */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-muted { color: var(--text-muted) !important; }

.fw-semibold { font-weight: 600 !important; }
.fw-bold { font-weight: 700 !important; }

.rounded-2 { border-radius: 8px !important; }
.rounded-3 { border-radius: 12px !important; }
.rounded-circle { border-radius: 50% !important; }

/* Fade Animation */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Page Shell */
.page-shell {
    max-width: 1400px;
    margin: 0 auto;
}

/* Additional Spacing */
.mb-4 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.gap-4 { gap: 1.5rem; }

/* Grid System */
.g-4 { gap: 1.5rem; }
.g-3 { gap: 1rem; }

/* Display Utilities */
.d-flex { display: flex; }
.d-block { display: block; }
.d-inline-flex { display: inline-flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
