/* Variables */
:root {
    /* Colors */
    --primary-color: #2196F3;
    --primary-color-dark: #1976D2;
    --secondary-color: #607D8B;
    --success-color: #4CAF50;
    --warning-color: #FFC107;
    --danger-color: #F44336;
    --light-bg: #7394b6;
    --lighter-bg: #ffffff;
    --card-bg: #ffffff;
    --text-color: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
}

/* Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
}

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

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--lighter-bg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    box-shadow: 2px 0 5px var(--shadow-color);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: background-color 0.2s;
}

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

.nav-links i {
    width: 1.5rem;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* Main Content */
.content {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.content-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-muted);
}

/* Cards */
.card, .dashboard-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 6px var(--shadow-color);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--lighter-bg);
}

.card-header h3, .card-header h5 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: var(--spacing-lg);
}

/* Search and Actions */
.card-header .actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-md);
    flex: 1;
}

.card-header .actions .search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
    margin-right: var(--spacing-md);
}

.card-header .actions .search-box input {
    width: 100%;
    height: 38px;
    padding: 0.5rem var(--spacing-lg) 0.5rem 2.5rem;
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-color);
    font-size: 0.875rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.card-header .actions .search-box input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(33, 150, 243, 0.25);
}

.card-header .actions .search-box i {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 0 -1px;
    width: 100%;
}

/* Base table styles */
.table,
.users-table,
.storage-table,
.footage-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--lighter-bg);
    table-layout: fixed;
}

/* Storage specific tables */
.storage-table {
    margin-bottom: var(--spacing-lg);
}

.storage-table th,
.storage-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Storage distribution columns */
.storage-table th:first-child,
.storage-table td:first-child {
    width: 30%;
}

.storage-table th:nth-child(2),
.storage-table td:nth-child(2) {
    width: 20%;
}

.storage-table th:last-child,
.storage-table td:last-child {
    width: 50%;
}

/* Progress bar in storage tables */
.storage-table .progress-container {
    width: 100%;
    background-color: var(--light-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.storage-table .progress-bar {
    height: 1rem;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.table th,
.users-table th,
.footage-table th {
    font-weight: 600;
    color: var(--text-color);
    background-color: #e9ecef;
    border-bottom: 2px solid var(--border-color);
}

.table tbody tr:hover,
.users-table tbody tr:hover,
.footage-table tbody tr:hover {
    background-color: #f8f9fa;
}

.table tbody tr:nth-child(even),
.users-table tbody tr:nth-child(even),
.footage-table tbody tr:nth-child(even) {
    background-color: #f2f4f6;
}

.table-hover tbody tr:hover {
    background-color: #f8f9fa;
}

/* Command text in tables */
.command-text {
    max-width: 500px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Table action buttons */
.table .actions,
.users-table .actions,
.footage-table .actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.table .btn-small,
.users-table .btn-small,
.footage-table .btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--lighter-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(33, 150, 243, 0.25);
}

textarea.form-control {
    min-height: 200px;
    resize: vertical;
    font-family: monospace;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    padding: 0;
    margin: 0;
    overflow-y: auto;
}

.modal.show {
    display: flex !important;
    align-items: center;
    justify-content: center;
}

.modal-dialog {
    background: var(--lighter-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 12px var(--shadow-color);
    width: 100%;
    max-width: 500px;
    margin: var(--spacing-lg);
    position: relative;
}

.modal-content {
    padding: var(--spacing-lg);
}

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

.modal-header h3 {
    margin: 0;
    color: var(--text-color);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-body {
    padding: var(--spacing-md) 0;
}

.modal-footer {
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    white-space: nowrap;
}

.btn-primary {
    color: white;
    background-color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-secondary {
    color: var(--text-color);
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-small {
    padding: 0.375rem 0.75rem;
    min-width: auto;
}

.btn i {
    font-size: 0.875rem;
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.3s ease-out;
}

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

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

/* Statistics */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--lighter-bg);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.stat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: 1.5rem;
}

.stat-info h4 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.stat-info p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Progress Bar */
.progress-bar {
    height: 0.5rem;
    background-color: var(--light-bg);
    border-radius: 0.25rem;
    overflow: hidden;
}

.progress {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease-out;
}

/* Authentication Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.auth-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 6px var(--shadow-color);
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .admin-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        padding: var(--spacing-md);
    }

    .content {
        padding: var(--spacing-md);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .modal-dialog {
        width: 95%;
        margin: var(--spacing-xs);
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-md);
    }

    .btn {
        padding: 0.5rem 1rem;
    }
}

/* Utilities */
.mt-4 {
    margin-top: 1rem;
}

.hidden {
    display: none;
}

.container {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

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

.badge-user {
    background-color: var(--secondary-color);
    color: white;
}