/* CSS Variables for Color Scheme */
:root {
	--accent-gold: #fdcb6e;
	--bg-primary: #ffffff;
	--bg-secondary: #f8f9fa;
	--text-primary: #2d3436;
	--text-secondary: #636e72;
	--text-on-gold: #1a1d23;
	--header-bg: #ffffff;
	--sidebar-bg: #f8f9fa;
	--card-bg: #ffffff;
	--border-color: #e9ecef;
	--shadow: rgba(0, 0, 0, 0.1);
}

/* Dark mode variables */
[data-theme="dark"] {
	--accent-gold: #fdcb6e;
	--bg-primary: #1a1d23;
	--bg-secondary: #23272b;
	--text-primary: #f5f6fa;
	--text-secondary: #b2bec3;
	--text-on-gold: #1a1d23;
	--header-bg: #23272b;
	--sidebar-bg: #2d3436;
	--card-bg: #23272b;
	--border-color: #3a3f47;
	--shadow: rgba(0, 0, 0, 0.3);
}

/* CSS Reset and Base Styles */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: "Poppins", sans-serif;
	line-height: 1.6;
	background: var(--bg-primary);
	color: var(--text-primary);
	min-height: 100vh;
	transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Theme Toggle Button */
.theme-toggle {
	background: var(--accent-gold);
	color: var(--text-primary);
	border: none;
	padding: 0.5rem 1rem;
	border-radius: 25px;
	cursor: pointer;
	font-weight: 600;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	transition: all 0.3s ease;
}

.theme-toggle:hover {
	transform: scale(1.05);
	box-shadow: 0 4px 12px rgba(253, 203, 110, 0.3);
}

.theme-toggle i {
	font-size: 1.2rem;
}

/* Header */
.header {
	background: var(--header-bg);
	color: var(--text-primary);
	padding: 1rem 0;
	box-shadow: 0 2px 10px var(--shadow);
	position: sticky;
	top: 0;
	z-index: 1000;
	transition: background-color 0.3s ease;
}

.header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	display: flex;
	align-items: center;
	gap: 10px;
}

.logo i {
	font-size: 2rem;
	color: var(--accent-gold);
}

.logo h1 {
	font-size: 1.8rem;
	font-weight: 700;
	color: var(--text-primary);
}

.logo h1 span {
	vertical-align: middle;
}

.logo-flag {
	font-size: 2rem;
	vertical-align: middle;
}

.nav {
	display: flex;
	gap: 2rem;
	align-items: center;
}

.nav a {
	color: var(--text-primary);
	text-decoration: none;
	font-weight: 500;
	transition: all 0.3s ease;
	padding: 0.5rem 1rem;
	border-radius: 25px;
}

.nav a:hover {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	transform: translateY(-2px);
}

/* Hero Section */
.hero {
	padding: 4rem 0;
	background: var(--bg-secondary);
	color: var(--text-primary);
	text-align: center;
	position: relative;
	overflow: hidden;
}

.hero-content {
	position: relative;
	z-index: 2;
}

.hero h2 {
	font-size: 3rem;
	margin-bottom: 1rem;
	font-weight: 700;
	color: var(--accent-gold);
}

.hero p {
	font-size: 1.2rem;
	margin-bottom: 2rem;
	opacity: 0.9;
	max-width: 600px;
	margin-left: auto;
	margin-right: auto;
	color: var(--text-secondary);
}

.cta-button {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	border: none;
	padding: 1rem 2rem;
	font-size: 1.1rem;
	font-weight: 600;
	border-radius: 50px;
	cursor: pointer;
	transition: all 0.3s ease;
	box-shadow: 0 8px 25px rgba(253, 203, 110, 0.3);
}

.cta-button:hover {
	transform: translateY(-3px);
	box-shadow: 0 12px 35px rgba(253, 203, 110, 0.5);
}

.cta-button i {
	margin-right: 8px;
}

.hero-image {
	margin-top: 2rem;
	position: relative;
}

.ghana-flag {
	font-size: 4rem;
	animation: float 3s ease-in-out infinite;
}

.cultural-elements {
	margin-top: 1rem;
	display: flex;
	justify-content: center;
	gap: 2rem;
}

.adinkra-symbol {
	font-size: 2rem;
	opacity: 0.8;
}

.kente-pattern {
	width: 50px;
	height: 20px;
	background: linear-gradient(90deg, #e74c3c, #f39c12, #27ae60, #3498db);
	border-radius: 10px;
	display: inline-block;
}

@keyframes float {
	0%,
	100% {
		transform: translateY(0px);
	}
	50% {
		transform: translateY(-10px);
	}
}

/* Learning Section */
.learning-section {
	padding: 4rem 0;
	background: var(--bg-primary);
	position: relative;
	z-index: 10;
}

.section-title {
	text-align: center;
	font-size: 2.5rem;
	margin-bottom: 3rem;
	color: var(--accent-gold);
	font-weight: 700;
}

/* Two-column learning layout */
.learning-layout {
	display: grid;
	grid-template-columns: 320px 1fr;
	gap: 2rem;
}

.sidebar {
	background: var(--sidebar-bg);
	color: var(--text-primary);
	border-radius: 16px;
	padding: 1rem;
	box-shadow: 0 10px 30px var(--shadow);
	position: sticky;
	top: 90px; /* under header */
	max-height: calc(100vh - 120px);
	overflow: auto;
	border: 2px solid var(--border-color);
}

.sidebar-header {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 700;
	margin-bottom: 0.5rem;
	color: var(--text-primary);
}

.sidebar-header i {
	color: var(--accent-gold);
}

.language-selector {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0.5rem;
	margin-bottom: 0.75rem;
}

.lang-btn {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	background: var(--bg-secondary);
	color: var(--text-primary);
	border: 1px solid var(--border-color);
	padding: 0.6rem 0.8rem;
	border-radius: 10px;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.2s ease;
}

.lang-btn:hover {
	background: var(--accent-gold);
	color: var(--text-on-gold);
}

.lang-btn.active {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	border-color: var(--accent-gold);
	font-weight: 600;
}

.lang-btn.disabled {
	opacity: 0.6;
	cursor: not-allowed;
}

.tree {
	list-style: none;
	margin: 0;
	padding: 0.25rem 0;
}

.tree-group {
	margin-bottom: 0.5rem;
}

.tree-toggle {
	width: 100%;
	background: var(--bg-secondary);
	border: 1px solid var(--border-color);
	color: var(--text-primary);
	text-align: left;
	padding: 0.7rem 0.9rem;
	border-radius: 10px;
	font-weight: 600;
	display: flex;
	align-items: center;
	justify-content: space-between;
	cursor: pointer;
	transition: all 0.2s ease;
}

.tree-toggle:hover {
	background: var(--accent-gold);
	color: var(--text-on-gold);
}

.tree-list {
	list-style: none;
	margin: 0.4rem 0 0.8rem 0;
	padding-left: 0.5rem;
	border-left: 2px dashed var(--border-color);
}

.tree-item {
	margin: 0.2rem 0;
}

.tree-link {
	display: block;
	width: 100%;
	background: var(--bg-primary);
	color: var(--text-primary);
	text-decoration: none;
	padding: 0.55rem 0.7rem;
	border-radius: 8px;
	font-weight: 600;
	transition: all 0.15s ease;
	border: 1px solid var(--border-color);
}

.tree-link:hover {
	transform: translateX(4px);
	background: var(--accent-gold);
	color: var(--text-on-gold);
}

.tree-link.active {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	font-weight: 600;
	box-shadow: 0 0 0 3px rgba(253, 203, 110, 0.3) inset;
}

/* Sidebar Footer */
.sidebar-footer {
	margin-top: 1rem;
	padding-top: 1rem;
	border-top: 2px dashed var(--border-color);
}

.reset-progress-btn {
	width: 100%;
	background: var(--bg-secondary);
	color: var(--text-secondary);
	border: 1px solid var(--border-color);
	padding: 0.7rem 1rem;
	border-radius: 10px;
	font-weight: 600;
	font-size: 0.9rem;
	cursor: pointer;
	transition: all 0.3s ease;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
}

.reset-progress-btn:hover {
	background: #e74c3c;
	color: white;
	border-color: #e74c3c;
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.reset-progress-btn i {
	font-size: 1rem;
}

.content-area {
	min-height: 400px;
}

/* Level Selector */
.level-selector {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 2rem;
	margin-bottom: 2rem;
	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
}

.dropdown-container {
	background: linear-gradient(135deg, #6c5ce7, #a29bfe);
	padding: 1.5rem;
	border-radius: 15px;
	color: white;
	box-shadow: 0 8px 25px rgba(108, 92, 231, 0.2);
}

.dropdown-container label {
	display: block;
	font-weight: 600;
	margin-bottom: 0.5rem;
	font-size: 1.1rem;
}

.dropdown-container label i {
	margin-right: 8px;
	color: #ffeaa7;
}

.dropdown-container select {
	width: 100%;
	padding: 0.8rem;
	border: none;
	border-radius: 10px;
	font-size: 1rem;
	background: white;
	color: #2d3436;
	cursor: pointer;
	transition: all 0.3s ease;
}

.dropdown-container select:focus {
	outline: none;
	box-shadow: 0 0 15px rgba(108, 92, 231, 0.3);
}

/* Progress Bar */
.progress-container {
	max-width: 600px;
	margin: 2rem auto;
	text-align: center;
}

.progress-bar {
	width: 100%;
	height: 10px;
	background: var(--border-color);
	border-radius: 5px;
	overflow: hidden;
	margin-bottom: 0.5rem;
}

.progress-fill {
	height: 100%;
	background: var(--accent-gold);
	border-radius: 5px;
	transition: width 0.6s ease;
	width: 0%;
}

.progress-text {
	font-weight: 600;
	color: var(--text-secondary);
}

/* Lesson Container */
.lesson-container {
	background: var(--card-bg);
	border-radius: 20px;
	padding: 2rem;
	margin: 2rem 0;
	box-shadow: 0 10px 30px var(--shadow);
	border: 2px solid var(--accent-gold);
	position: relative;
}

.welcome-screen {
	text-align: center;
	padding: 2rem;
}

.welcome-screen h3 {
	font-size: 2rem;
	color: var(--accent-gold);
	margin-bottom: 1rem;
}

.welcome-screen p {
	font-size: 1.1rem;
	color: var(--text-secondary);
	margin-bottom: 2rem;
}

.quick-facts {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 1rem;
	margin-top: 2rem;
}

.fact {
	background: var(--bg-secondary);
	color: var(--text-primary);
	padding: 1rem;
	border-radius: 15px;
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 600;
	border: 2px solid var(--accent-gold);
}

.fact i {
	font-size: 1.5rem;
	color: var(--accent-gold);
}

/* Lesson Content Styles */
.lesson-content h3 {
	color: var(--accent-gold);
	font-size: 1.8rem;
	margin-bottom: 1rem;
	border-bottom: 3px solid var(--accent-gold);
	padding-bottom: 0.5rem;
}

.lesson-content h4 {
	color: var(--text-secondary);
	font-size: 1.3rem;
	margin: 1.5rem 0 1rem 0;
}

.lesson-content p {
	color: var(--text-primary);
	margin-bottom: 1rem;
	line-height: 1.8;
}

.lesson-content ul {
	color: var(--text-primary);
	margin-left: 1.5rem;
	margin-bottom: 1rem;
}

.vocabulary-table {
	width: 100%;
	border-collapse: collapse;
	margin: 1.5rem 0;
	border-radius: 10px;
	overflow: hidden;
	box-shadow: 0 5px 15px var(--shadow);
}

.vocabulary-table th {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	padding: 1rem;
	text-align: left;
	font-weight: 600;
}

.vocabulary-table td {
	padding: 0.8rem 1rem;
	border-bottom: 1px solid var(--border-color);
	color: var(--text-primary);
}

.vocabulary-table tr:nth-child(even) {
	background: var(--bg-secondary);
}

.vocabulary-table tr:hover {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	transition: all 0.3s ease;
}

.vocabulary-table tr:hover td {
	color: var(--text-on-gold);
}

.pronunciation {
	color: var(--accent-gold);
	font-style: italic;
	font-weight: 500;
}

.example-sentence {
	background: var(--bg-secondary);
	color: var(--text-primary);
	padding: 1rem;
	border-radius: 10px;
	margin: 1rem 0;
	border-left: 4px solid var(--accent-gold);
}

.cultural-note {
	background: var(--accent-gold);
	color: var(--text-on-gold);
	padding: 1rem;
	border-radius: 10px;
	margin: 1rem 0;
	font-style: italic;
}

.proverb {
	background: var(--bg-secondary);
	color: var(--text-primary);
	padding: 1.5rem;
	border-radius: 15px;
	margin: 1rem 0;
	text-align: center;
	font-style: italic;
	font-weight: 600;
	box-shadow: 0 8px 25px var(--shadow);
	border: 2px solid var(--accent-gold);
}

/* Navigation Buttons */
.lesson-navigation {
	display: flex;
	justify-content: space-between;
	gap: 1rem;
	max-width: 400px;
	margin: 2rem auto 0;
}

.lesson-navigation.hidden {
	display: none;
}

.nav-btn {
	flex: 1;
	padding: 1rem 1.5rem;
	border: 2px solid var(--accent-gold);
	border-radius: 50px;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.3s ease;
	font-size: 1rem;
	background: var(--bg-secondary);
	color: var(--text-primary);
}

.prev-btn:hover,
.next-btn:hover {
	background: var(--accent-gold);
	color: var(--text-on-gold);
}

.nav-btn:hover {
	transform: translateY(-2px);
	box-shadow: 0 8px 20px var(--shadow);
}

.nav-btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
}

/* Features Section */
.features {
	padding: 4rem 0;
	background: linear-gradient(135deg, #2d3436 0%, #636e72 100%);
	color: white;
}

.features-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 2rem;
	margin-top: 2rem;
}

.feature-card {
	background: white;
	color: #2d3436;
	padding: 2rem;
	border-radius: 20px;
	text-align: center;
	transition: all 0.3s ease;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.feature-card i {
	font-size: 3rem;
	color: #6c5ce7;
	margin-bottom: 1rem;
}

.feature-card h3 {
	font-size: 1.5rem;
	margin-bottom: 1rem;
	color: #2d3436;
}

.feature-card p {
	color: #636e72;
	line-height: 1.6;
}

/* About Section */
.about-section {
	padding: 4rem 0;
	background: var(--bg-secondary);
}

.about-content {
	max-width: 1000px;
	margin: 0 auto;
}

.about-content > p {
	font-size: 1.2rem;
	line-height: 1.8;
	color: var(--text-primary);
	text-align: center;
	margin-bottom: 3rem;
}

.about-features {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 2rem;
	margin: 3rem 0;
}

.about-card {
	background: var(--card-bg);
	padding: 2rem;
	border-radius: 15px;
	text-align: center;
	box-shadow: 0 5px 15px var(--shadow);
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	border: 1px solid var(--border-color);
}

.about-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 25px var(--shadow);
}

.about-card i {
	font-size: 3rem;
	color: var(--accent-gold);
	margin-bottom: 1rem;
}

.about-card h3 {
	color: var(--text-primary);
	margin-bottom: 1rem;
	font-size: 1.3rem;
}

.about-card p {
	color: var(--text-secondary);
	line-height: 1.6;
}

.languages-overview {
	background: var(--card-bg);
	padding: 2rem;
	border-radius: 15px;
	margin-top: 3rem;
	border-left: 4px solid var(--accent-gold);
	box-shadow: 0 5px 15px var(--shadow);
}

.languages-overview h3 {
	color: var(--text-primary);
	margin-bottom: 1rem;
}

.languages-overview p {
	color: var(--text-secondary);
	line-height: 1.8;
	margin: 0.5rem 0;
}

.languages-overview strong {
	color: var(--text-primary);
}

/* Footer */
.footer {
	background: var(--header-bg);
	color: var(--text-primary);
	text-align: center;
	padding: 2rem 0;
	border-top: 1px solid var(--border-color);
}

.footer .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 1rem;
}

.footer p {
	color: var(--text-secondary);
}

.footer a {
	color: var(--accent-gold);
	text-decoration: none;
	transition: opacity 0.3s ease;
}

.footer a:hover {
	opacity: 0.8;
}

.ghana-flag {
	vertical-align: middle;
	font-size: 1.2em;
	display: inline-block;
}

/* Responsive Design */
@media (max-width: 768px) {
	.learning-layout {
		grid-template-columns: 1fr;
	}

	.sidebar {
		position: static;
		max-height: none;
	}
	.header .container {
		flex-direction: column;
		gap: 1rem;
	}

	.nav {
		gap: 1rem;
	}

	.hero h2 {
		font-size: 2rem;
	}

	.level-selector {
		grid-template-columns: 1fr;
		gap: 1rem;
	}

	.lesson-navigation {
		flex-direction: column;
	}

	.footer .container {
		flex-direction: column;
		text-align: center;
	}

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

@media (max-width: 480px) {
	.container {
		padding: 0 15px;
	}

	.hero h2 {
		font-size: 1.5rem;
	}

	.hero p {
		font-size: 1rem;
	}

	.section-title {
		font-size: 2rem;
	}

	.lesson-container {
		padding: 1rem;
	}
}

/* Welcome Back Notification */
.welcome-back-notification {
	position: fixed;
	top: 80px;
	right: 20px;
	background: var(--card-bg);
	border: 2px solid var(--accent-gold);
	border-radius: 15px;
	padding: 1rem 1.5rem;
	box-shadow: 0 8px 25px var(--shadow);
	z-index: 9999;
	opacity: 0;
	transform: translateX(400px);
	transition: all 0.3s ease;
	max-width: 400px;
}

.welcome-back-notification.show {
	opacity: 1;
	transform: translateX(0);
}

.notification-content {
	display: flex;
	align-items: center;
	gap: 1rem;
	color: var(--text-primary);
}

.notification-content i {
	color: var(--accent-gold);
	font-size: 1.5rem;
}

.notification-content span {
	font-size: 0.95rem;
	line-height: 1.4;
}

.notification-content strong {
	color: var(--accent-gold);
	font-weight: 600;
}

@media (max-width: 768px) {
	.welcome-back-notification {
		top: 70px;
		right: 10px;
		left: 10px;
		max-width: none;
		padding: 0.8rem 1rem;
	}

	.notification-content {
		gap: 0.7rem;
	}

	.notification-content i {
		font-size: 1.2rem;
	}

	.notification-content span {
		font-size: 0.85rem;
	}
}