/* CSS Variables & Theme Setup */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-main: #f8fafc;
    --bg-sidebar: #0f172a;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-on-sidebar: #cbd5e1;
    --border: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Theme Variables */
body.dark-mode {
    --bg-main: #0b0f19;
    --bg-sidebar: #030712;
    --bg-card: #111827;
    --bg-input: #1f2937;
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-on-sidebar: #cbd5e1;
    --border: #374151;
    
    --primary-light: rgba(99, 102, 241, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    color: var(--text-on-sidebar);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-brand {
    padding: 24px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #1e293b;
}

.sidebar-brand i {
    color: var(--primary);
}

.sidebar-menu {
    list-style: none;
    padding: 20px 12px;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar-menu li {
    margin-bottom: 6px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--text-on-sidebar);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.sidebar-menu a:hover,
.sidebar-menu li.active a {
    background-color: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.sidebar-menu li.active a {
    background-color: var(--primary);
    color: #ffffff;
}

.sidebar-menu a i {
    font-size: 1.1rem;
    width: 20px;
}

.sidebar-user {
    padding: 20px;
    border-top: 1px solid #1e293b;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-user .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.sidebar-user .user-info {
    flex-grow: 1;
    overflow: hidden;
}

.sidebar-user .user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-user .logout-btn {
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-user .logout-btn:hover {
    color: var(--danger);
}

/* Main Content Area */
.main-content {
    margin-left: 260px;
    flex-grow: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

/* Top Header */
.top-header {
    height: 70px;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 90;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.page-title h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Content Container */
.content-wrapper {
    padding: 30px;
    flex-grow: 1;
}

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

.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.stat-info .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-info .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.primary { background-color: var(--primary-light); color: var(--primary); }
.stat-icon.secondary { background-color: #e0f2fe; color: var(--secondary); }
.stat-icon.success { background-color: #d1fae5; color: var(--success); }
.stat-icon.warning { background-color: #fef3c7; color: var(--warning); }
.stat-icon.danger { background-color: #fee2e2; color: var(--danger); }

/* Dashboard Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.chart-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.chart-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-main);
}

/* Card General */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 30px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

/* Tables styling */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th {
    padding: 14px 16px;
    background-color: #f1f5f9;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary { background-color: var(--primary-light); color: var(--primary); }
.badge-success { background-color: #d1fae5; color: var(--success); }
.badge-warning { background-color: #fef3c7; color: var(--warning); }
.badge-danger { background-color: #fee2e2; color: var(--danger); }
.badge-secondary { background-color: #f1f5f9; color: var(--text-muted); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover { background-color: var(--primary-dark); }
.btn-secondary { background-color: #e2e8f0; color: var(--text-main); }
.btn-secondary:hover { background-color: #cbd5e1; }
.btn-success { background-color: var(--success); color: white; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

/* Forms Styling */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
}

.form-control {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.92rem;
    font-family: inherit;
    background-color: var(--bg-input);
    color: var(--text-main);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* Photo Thumbnail inside forms & lists */
.photo-preview-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 5px;
}

.photo-preview {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background-color: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.photo-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.table-img {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border);
}

/* Auth Pages (Login & Register) */
.auth-container {
    min-height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #e0e7ff 0%, #cbd5e1 50%, #f8fafc 100%);
    padding: 20px;
    transition: var(--transition);
}

body.dark-mode .auth-container {
    background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 50%, #020617 100%);
}

.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    overflow: hidden;
    line-height: 0;
    z-index: 1;
    pointer-events: none;
}

.wave-svg {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--primary-dark);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
    box-shadow: var(--shadow);
}

body.dark-mode .theme-toggle-btn {
    background: rgba(17, 24, 39, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fbbf24; /* Sun color */
}

.theme-toggle-btn:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: var(--shadow-lg);
}

/* Dashboard Header Toggle styling */
.top-header .theme-toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-main);
}
body.dark-mode .top-header .theme-toggle-btn {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: #fbbf24;
}

.auth-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    width: 100%;
    max-width: 440px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 40px;
    z-index: 2;
    transition: var(--transition);
}

body.dark-mode .auth-card {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header .logo {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

body.dark-mode .auth-header .logo {
    color: #818cf8;
}

.auth-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    transition: var(--transition);
}

.auth-header p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 4px;
    transition: var(--transition);
}

.auth-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.auth-footer a {
    color: var(--primary-dark);
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Modal styling for details */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 110;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: var(--transition);
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.modal-close {
    font-size: 1.25rem;
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Alerts and Notifications */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success { background-color: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background-color: #fef2f2; color: #991b1b; border: 1px solid #fca5a5; }

/* Grid Layouts for detail view */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 20px;
}

.detail-image {
    width: 100%;
    height: 180px;
    border-radius: var(--radius);
    object-fit: cover;
    border: 1px solid var(--border);
}

.detail-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.detail-value {
    font-weight: 500;
    color: var(--text-main);
    font-size: 0.9rem;
}

/* Responsive CSS */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .content-wrapper {
        padding: 15px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .auth-card {
        padding: 24px;
    }
}