/* Base Variables */
:root {
    --transition: all 0.3s ease;
}

/* Dark Blue Theme (Default) */
[data-theme="dark-blue"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e3a8a;
    --text-primary: #ffffff;
    --text-secondary: #cbd5e1;
    --accent: #3b82f6;
    --border: #334155;
    --hover: #2563eb;
    --modal-backdrop: rgba(15, 23, 42, 0.8);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-card: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --accent: #404040;
    --border: #404040;
    --hover: #333333;
    --modal-backdrop: rgba(0, 0, 0, 0.8);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #3b82f6;
    --border: #e2e8f0;
    --hover: #eff6ff;
    --modal-backdrop: rgba(0, 0, 0, 0.5);
}

/* Olive Gold Theme */
[data-theme="olive-gold"] {
    --bg-primary: #556905;
    --bg-secondary: #6b7f0a;
    --bg-card: #7a9209;
    --text-primary: #ffffff;
    --text-secondary: #f0f0f0;
    --accent: #F1C705;
    --border: #8fa50c;
    --hover: #F1C705;
    --modal-backdrop: rgba(85, 105, 5, 0.8);
}

/* Global Styles */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    transition: var(--transition);
    margin: 0;
    padding: 0;
}

/* Modals */
.modal {
    background: var(--modal-backdrop) !important;
}

.modal-content {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    border-radius: 12px !important;
    color: var(--text-primary) !important;
}

.modal-header {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-primary) !important;
}

.modal-title {
    color: var(--text-primary) !important;
}

.modal-body {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

.modal-footer {
    background: var(--bg-secondary) !important;
    border-top: 1px solid var(--border) !important;
}

.btn-close {
    filter: var(--text-primary) == #ffffff ? invert(1) : invert(0);
}

/* Alerts */
.alert {
    border-radius: 8px !important;
    border: 1px solid var(--border) !important;
}

.alert-info {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--accent) !important;
}

.alert-success {
    background: #10b981 !important;
    color: white !important;
    border-color: #059669 !important;
}

.alert-warning {
    background: #f59e0b !important;
    color: white !important;
    border-color: #d97706 !important;
}

.alert-danger {
    background: #ef4444 !important;
    color: white !important;
    border-color: #dc2626 !important;
}

/* Badges */
.badge {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
}

.bg-success {
    background: #10b981 !important;
}

.bg-primary {
    background: var(--accent) !important;
}

.bg-secondary {
    background: var(--bg-secondary) !important;
}

/* Text Colors */
.text-primary {
    color: var(--text-primary) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-muted {
    color: var(--text-secondary) !important;
}

/* Sidebar */
.bg-dark {
    background: var(--bg-secondary) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    transition: var(--transition);
    border-radius: 8px;
    margin: 4px 0;
    padding: 12px 16px !important;
}

.nav-link:hover {
    background: var(--hover) !important;
    color: var(--text-primary) !important;
    transform: translateX(4px);
}

.nav-link.bg-primary, .nav-link.rounded {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
}

.navbar-brand {
    color: var(--text-primary) !important;
}

small.text-muted {
    color: var(--text-secondary) !important;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

hr {
    border-color: var(--border) !important;
    opacity: 0.3;
}

/* Cards */
.card, .login-section, .menu-section {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    color: var(--text-primary) !important;
}

.card:hover {
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-primary) !important;
}

.card-body {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

.card-title {
    color: var(--text-primary) !important;
}

.card-text {
    color: var(--text-secondary) !important;
}

/* Forms */
.form-control, .form-select, input, select, textarea {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px;
    padding: 12px;
    transition: var(--transition);
}

.form-control:focus, input:focus, select:focus, textarea:focus {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--accent) !important;
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

.form-label {
    color: var(--text-primary) !important;
    font-weight: 600;
}

/* Buttons */
.btn, .login-btn, button[type="submit"] {
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
    border-color: var(--accent) !important;
}

.btn-primary:hover {
    background: var(--hover) !important;
    border-color: var(--hover) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border) !important;
}

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

.btn-success {
    background: #10b981 !important;
    color: white !important;
    border-color: #059669 !important;
}

.btn-success:hover {
    background: #059669 !important;
    border-color: #047857 !important;
}

/* Tables */
table {
    background: var(--bg-card) !important;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
    color: var(--text-primary) !important;
}

th {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    font-weight: 600;
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border) !important;
}

td {
    padding: 16px;
    border-top: 1px solid var(--border) !important;
    color: var(--text-secondary) !important;
    background: var(--bg-card) !important;
}

tr:hover td {
    background: var(--hover) !important;
}

/* Progress */
.progress {
    background: var(--bg-secondary) !important;
    border-radius: 8px;
}

.progress-bar {
    background: var(--accent) !important;
}

/* Dropdowns */
.dropdown-menu {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px;
}

.dropdown-item {
    color: var(--text-primary) !important;
}

.dropdown-item:hover {
    background: var(--hover) !important;
    color: var(--text-primary) !important;
}

/* Header Banner */
.header-banner {
    background: linear-gradient(135deg, var(--accent), var(--bg-card));
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 24px;
}

/* Menu Items */
.menu-header {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
    padding: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.menu-item {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border) !important;
    transition: var(--transition);
}

.menu-item:hover {
    background: var(--hover) !important;
    padding-left: 20px;
}

.menu-item a {
    color: var(--text-primary) !important;
    text-decoration: none;
}

/* Container */
.login-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hover);
}

/* Chapter Items */
.chapter-item {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
}

.chapter-item:hover {
    background: var(--hover) !important;
}

.chapter-item.active {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
}

.chapter-item.completed {
    opacity: 0.7;
}

/* Lists */
ul, ol {
    color: var(--text-primary) !important;
}

li {
    color: var(--text-secondary) !important;
}

/* Links */
a {
    color: var(--accent) !important;
    transition: var(--transition);
}

a:hover {
    color: var(--hover) !important;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary) !important;
}

/* Navigation active items - ensure contrast */
.nav-link.active,
.nav-link[style*="background: var(--accent)"] {
    background: var(--accent) !important;
    color: var(--text-primary) !important;
}

/* Dark theme specific nav active items */
[data-theme="dark"] .nav-link.active,
[data-theme="dark"] .nav-link[style*="background: var(--accent)"] {
    background: #404040 !important;
    color: #ffffff !important;
}

/* Light theme specific nav active items */
[data-theme="light"] .nav-link.active,
[data-theme="light"] .nav-link[style*="background: var(--accent)"] {
    background: #3b82f6 !important;
    color: #ffffff !important;
}

/* Dark blue theme specific nav active items */
[data-theme="dark-blue"] .nav-link.active,
[data-theme="dark-blue"] .nav-link[style*="background: var(--accent)"] {
    background: #3b82f6 !important;
    color: #ffffff !important;
}

/* Paragraphs */
p {
    color: var(--text-secondary) !important;
}

/* Global text element overrides */
* {
    color: inherit;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    color: var(--text-primary) !important;
}

p, span, div, li, td, th, label, 
.text, .content, .chapter-text,
#chapter-content, #chapter-content *,
.card-text, .form-text {
    color: var(--text-secondary) !important;
}

strong, b, .font-weight-bold {
    color: var(--text-primary) !important;
}

small, .small, .text-sm {
    color: var(--text-secondary) !important;
    opacity: 0.8;
}