/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Arvo:ital,wght@0,400;0,700;1,400;1,700&family=Elms+Sans:ital,wght@0,100..900;1,100..900&display=swap');

/* CSS Variables for Light Mode */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --card-bg: #ffffff;
    --card-shadow: rgba(0,0,0,0.1);
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --table-bg: #ffffff;
    --table-hover: #f8f9fa;
}

/* CSS Variables for Dark Mode */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --border-color: #495057;
    --card-bg: #2d2d2d;
    --card-shadow: rgba(0,0,0,0.3);
    --input-bg: #3d3d3d;
    --input-border: #495057;
    --table-bg: #2d2d2d;
    --table-hover: #3d3d3d;
}

/* Global Styles */
* {
    font-family: 'Elms Sans', sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    font-family: 'Elms Sans', sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Arvo', serif;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand {
    font-family: 'Arvo', serif;
    font-weight: 700;
}

.card-title {
    font-family: 'Arvo', serif;
    color: var(--text-primary);
}

.btn {
    font-family: 'Elms Sans', sans-serif;
    font-weight: 500;
}

/* Dark Mode Styles */
[data-theme="dark"] body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

[data-theme="dark"] .table {
    color: var(--text-primary);
}

[data-theme="dark"] .table-bordered {
    border-color: var(--border-color);
}

[data-theme="dark"] .table-hover tbody tr:hover {
    background-color: var(--table-hover);
}

[data-theme="dark"] .list-group-item {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .bg-light,
[data-theme="dark"] .sidebar-menu {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary);
}

[data-theme="dark"] .nav-link {
    color: var(--text-primary);
}

[data-theme="dark"] .nav-link:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .text-muted {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .text-dark {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .modal-content {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .modal-header {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .modal-footer {
    border-top-color: var(--border-color);
}

[data-theme="dark"] .card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .card-header {
    background-color: var(--bg-tertiary);
    border-bottom-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .alert {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .pagination .page-link {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .pagination .page-item.active .page-link {
    background-color: #667eea;
    border-color: #667eea;
}

[data-theme="dark"] .badge {
    color: white;
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
}

[data-theme="dark"] .footer,
[data-theme="dark"] footer {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%) !important;
}

[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .table-bordered {
    border-color: var(--border-color);
}

[data-theme="dark"] .table-bordered td,
[data-theme="dark"] .table-bordered th {
    border-color: var(--border-color);
}

/* Dark Mode Toggle Button */
.theme-toggle {
    background: transparent;
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    margin-left: 10px;
}

.theme-toggle:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
    transform: scale(1.1);
}

[data-theme="dark"] .theme-toggle {
    border-color: rgba(255,255,255,0.5);
}