/**
 * About Us Page - Optimized CSS
 * Performance-focused styles for 100/100 Lighthouse scores
 * Mobile-first responsive design
 */

/* ==================== CSS Variables ==================== */
:root {
	/* Colors */
	--primary-color: #2563eb;
	--primary-dark: #1e40af;
	--primary-light: #3b82f6;
	--secondary-color: #dbeafe;
	--text-primary: #1f2937;
	--text-secondary: #6b7280;
	--text-muted: #9ca3af;
	--bg-white: #ffffff;
	--bg-gray-50: #f9fafb;
	--bg-gray-100: #f3f4f6;
	--border-color: #e5e7eb;
	
	/* Spacing */
	--spacing-xs: 0.5rem;
	--spacing-sm: 1rem;
	--spacing-md: 1.5rem;
	--spacing-lg: 2rem;
	--spacing-xl: 3rem;
	--spacing-2xl: 4rem;
	--spacing-3xl: 6rem;
	
	/* Typography */
	--font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	--font-size-base: 1rem;
	--font-size-sm: 0.875rem;
	--font-size-lg: 1.125rem;
	--font-size-xl: 1.25rem;
	--font-size-2xl: 1.5rem;
	--font-size-3xl: 1.875rem;
	--font-size-4xl: 2.25rem;
	--font-size-5xl: 3rem;
	
	/* Line Heights */
	--line-height-tight: 1.25;
	--line-height-normal: 1.5;
	--line-height-relaxed: 1.75;
	
	/* Transitions */
	--transition-fast: 150ms ease-in-out;
	--transition-base: 250ms ease-in-out;
	--transition-slow: 400ms ease-in-out;
	
	/* Shadows */
	--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
	--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
	--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
	
	/* Border Radius */
	--radius-sm: 0.375rem;
	--radius-md: 0.5rem;
	--radius-lg: 0.75rem;
	--radius-xl: 1rem;
	--radius-full: 9999px;
	
	/* Container */
	--container-max-width: 1280px;
	--container-padding: 1rem;
}

/* Large screen container scaling */
@media (min-width: 1400px) {
	:root {
		--container-max-width: 1600px;
	}
}

@media (min-width: 1920px) {
	:root {
		--container-max-width: 1800px;
	}
}

/* ==================== Base Styles ==================== */

/* Override base.css main element constraints for about page */
main#main-content {
	max-width: 100%;
	padding: 2rem 1.5rem 3rem;
}

@media (min-width: 1400px) {
	main#main-content {
		padding: 2rem 3rem 3rem;
	}
}

@media (min-width: 1920px) {
	main#main-content {
		padding: 2rem 4rem 3rem;
	}
}

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

.about-container {
	max-width: var(--container-max-width);
	margin: 0 auto;
	padding: 0 var(--container-padding);
}

@media (min-width: 768px) {
	:root {
		--container-padding: 2rem;
	}
}

/* ==================== Animation Classes ==================== */
.animate-on-scroll {
	opacity: 0;
	transform: translateY(30px);
	transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.animated {
	opacity: 1;
	transform: translateY(0);
}

/* ==================== Hero Section ==================== */
.about-hero {
	position: relative;
	padding: var(--spacing-3xl) 0 var(--spacing-3xl);
	background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #dbeafe 100%);
	overflow: hidden;
	min-height: 600px;
	display: flex;
	align-items: center;
}

/* Hero Background Pattern */
.hero-background-pattern {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 0;
	opacity: 0.6;
}

.pattern-svg {
	width: 100%;
	height: 100%;
	min-height: 600px;
}

/* Floating shapes animations */
.float-shape {
	animation: float 20s ease-in-out infinite;
}

.float-1 { animation-delay: 0s; }
.float-2 { animation-delay: 2s; }
.float-3 { animation-delay: 4s; }
.float-4 { animation-delay: 6s; }

@keyframes float {
	0%, 100% { transform: translate(0, 0) rotate(0deg); }
	25% { transform: translate(10px, -15px) rotate(5deg); }
	50% { transform: translate(-5px, -25px) rotate(-3deg); }
	75% { transform: translate(-15px, -10px) rotate(3deg); }
}

/* Pulse circle animation */
.pulse-circle {
	animation: pulse-ring 3s ease-out infinite;
	transform-origin: center;
}

@keyframes pulse-ring {
	0%, 100% { 
		transform: scale(1);
		opacity: 0.15;
	}
	50% { 
		transform: scale(1.5);
		opacity: 0.05;
	}
}

/* Orbit dots animation */
.orbit-dot {
	animation: orbit-rotate 15s linear infinite;
	transform-origin: center;
	transform-box: fill-box;
}

.orbit-1 { animation-delay: 0s; }
.orbit-2 { animation-delay: 3.75s; }
.orbit-3 { animation-delay: 7.5s; }
.orbit-4 { animation-delay: 11.25s; }

@keyframes orbit-rotate {
	from { transform: rotate(0deg); }
	to { transform: rotate(360deg); }
}

.about-hero-container {
	max-width: var(--container-max-width);
	margin: 0 auto;
	padding: 0 var(--container-padding);
	position: relative;
	z-index: 2;
}

.about-hero-content {
	max-width: 800px;
	margin: 0 auto;
	text-align: center;
}

.about-slogan {
	display: inline-block;
	font-size: var(--font-size-sm);
	font-weight: 600;
	color: var(--primary-color);
	text-transform: uppercase;
	letter-spacing: 0.1em;
	margin-bottom: var(--spacing-md);
	padding: 0.5rem 1rem;
	background: rgba(255, 255, 255, 0.8);
	border-radius: var(--radius-full);
	backdrop-filter: blur(10px);
}

.about-hero-title {
	font-size: var(--font-size-3xl);
	font-weight: 800;
	color: var(--text-primary);
	line-height: var(--line-height-tight);
	margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
	.about-hero-title {
		font-size: var(--font-size-5xl);
	}
}

.about-hero-title .highlight {
	color: var(--primary-color);
	background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	display: inline-block;
}

.about-hero-subtitle {
	font-size: var(--font-size-lg);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
	margin-bottom: var(--spacing-xl);
	max-width: 700px;
	margin-left: auto;
	margin-right: auto;
}

.about-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-md);
	justify-content: center;
}

.about-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 0.875rem 2rem;
	font-size: var(--font-size-base);
	font-weight: 600;
	text-decoration: none;
	border-radius: var(--radius-full);
	transition: all var(--transition-base);
	cursor: pointer;
	border: 2px solid transparent;
	position: relative;
	overflow: hidden;
}

.about-btn::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0;
	height: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.2);
	transform: translate(-50%, -50%);
	transition: width 0.6s, height 0.6s;
}

.about-btn:hover::before {
	width: 300px;
	height: 300px;
}

.about-btn span {
	position: relative;
	z-index: 1;
}

.about-btn svg {
	position: relative;
	z-index: 1;
	transition: transform var(--transition-base);
}

.about-btn:hover svg {
	transform: translateX(4px);
}

.about-btn-primary {
	background: var(--primary-color);
	color: white;
	box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.about-btn-primary:hover {
	background: var(--primary-dark);
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.about-btn-secondary {
	background: rgba(255, 255, 255, 0.9);
	color: var(--primary-color);
	border-color: var(--primary-color);
	backdrop-filter: blur(10px);
}

.about-btn-secondary:hover {
	background: white;
	border-color: var(--primary-dark);
	color: var(--primary-dark);
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(37, 99, 235, 0.2);
}

.about-btn-lg {
	padding: 1rem 2.5rem;
	font-size: var(--font-size-lg);
}

/* Hero Visual - Hidden as using background pattern now */
.about-hero-visual {
	display: none;
}

.hero-graphic {
	display: none;
}

/* Orbit Animation */
@keyframes orbit {
	from {
		transform: rotate(0deg) translateX(100px) rotate(0deg);
	}
	to {
		transform: rotate(360deg) translateX(100px) rotate(-360deg);
	}
}

.orbit-group {
	animation: orbit 20s linear infinite;
	transform-origin: 200px 200px;
}

.orbit-group[data-orbit="1"] { animation-duration: 15s; }
.orbit-group[data-orbit="2"] { animation-duration: 20s; animation-direction: reverse; }
.orbit-group[data-orbit="3"] { animation-duration: 18s; }
.orbit-group[data-orbit="4"] { animation-duration: 22s; animation-direction: reverse; }

/* ==================== Stats Section ==================== */
.about-stats-section {
	padding: var(--spacing-3xl) 0;
	background: var(--bg-white);
}

.stats-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: var(--spacing-xl);
}

.stat-item {
	text-align: center;
	padding: var(--spacing-lg);
	border-radius: var(--radius-lg);
	transition: transform var(--transition-base);
}

.stat-item:hover {
	transform: translateY(-5px);
}

.stat-icon {
	margin-bottom: var(--spacing-md);
}

.stat-value {
	font-size: var(--font-size-4xl);
	font-weight: 800;
	color: var(--primary-color);
	line-height: 1;
	margin-bottom: var(--spacing-xs);
}

.stat-label {
	font-size: var(--font-size-base);
	color: var(--text-secondary);
	font-weight: 500;
}

/* ==================== Mission & Vision Section ==================== */
.mission-vision-section {
	padding: var(--spacing-3xl) 0;
	background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-gray-50) 100%);
	position: relative;
}

.mission-vision-section::before {
	content: '';
	position: absolute;
	top: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 200px;
	height: 4px;
	background: linear-gradient(90deg, transparent 0%, var(--primary-color) 50%, transparent 100%);
	border-radius: var(--radius-full);
}

.mission-vision-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--spacing-xl);
}

@media (min-width: 768px) {
	.mission-vision-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: var(--spacing-2xl);
	}
}

.mission-card {
	background: var(--bg-white);
	padding: var(--spacing-2xl);
	border-radius: var(--radius-xl);
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
	transition: all var(--transition-base);
	position: relative;
	overflow: hidden;
	border: 1px solid transparent;
}

.mission-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
	transform: scaleX(0);
	transform-origin: left;
	transition: transform var(--transition-base);
}

.mission-card:hover {
	transform: translateY(-8px);
	box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
	border-color: var(--secondary-color);
}

.mission-card:hover::before {
	transform: scaleX(1);
}

.card-icon-wrapper {
	position: relative;
	display: inline-block;
	margin-bottom: var(--spacing-lg);
}

.card-icon {
	position: relative;
	z-index: 2;
	transition: transform var(--transition-base);
}

.mission-card:hover .card-icon {
	transform: scale(1.1) rotate(5deg);
}

.card-icon-bg {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 80px;
	height: 80px;
	background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
	border-radius: 50%;
	z-index: 1;
	transition: all var(--transition-base);
}

.mission-card:hover .card-icon-bg {
	width: 100px;
	height: 100px;
	background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
}

.card-title {
	font-size: var(--font-size-2xl);
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: var(--spacing-md);
	position: relative;
	display: inline-block;
}

.card-text {
	font-size: var(--font-size-base);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
	margin-bottom: var(--spacing-md);
}

.card-decorative-line {
	width: 60px;
	height: 3px;
	background: linear-gradient(90deg, var(--primary-color), transparent);
	border-radius: var(--radius-full);
	margin-top: var(--spacing-lg);
	transition: width var(--transition-base);
}

.mission-card:hover .card-decorative-line {
	width: 100px;
}

/* ==================== Section Headers ==================== */
.section-header {
	text-align: center;
	margin-bottom: var(--spacing-3xl);
	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
}

.section-title {
	font-size: var(--font-size-3xl);
	font-weight: 800;
	color: var(--text-primary);
	margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
	.section-title {
		font-size: var(--font-size-4xl);
	}
}

.section-subtitle {
	font-size: var(--font-size-lg);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
}

/* ==================== Values Section ==================== */
.values-section {
	padding: var(--spacing-3xl) 0;
	background: var(--bg-white);
}

.values-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--spacing-xl);
}

@media (min-width: 640px) {
	.values-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (min-width: 1024px) {
	.values-grid {
		grid-template-columns: repeat(3, 1fr);
	}
}

.value-card {
	padding: var(--spacing-xl);
	border-radius: var(--radius-lg);
	border: 2px solid var(--border-color);
	background: var(--bg-white);
	transition: all var(--transition-base);
}

.value-card:hover {
	border-color: var(--primary-color);
	transform: translateY(-5px);
	box-shadow: var(--shadow-lg);
}

.value-icon {
	margin-bottom: var(--spacing-md);
}

.value-title {
	font-size: var(--font-size-xl);
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: var(--spacing-sm);
}

.value-description {
	font-size: var(--font-size-base);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
}

/* ==================== Platform Features Section ==================== */
.platform-features-section {
	padding: var(--spacing-3xl) 0;
	background: linear-gradient(180deg, var(--bg-gray-50) 0%, var(--bg-white) 100%);
}

.features-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: var(--spacing-lg);
}

@media (min-width: 640px) {
	.features-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (min-width: 1024px) {
	.features-grid {
		grid-template-columns: repeat(3, 1fr);
	}
}

.feature-item {
	position: relative;
	padding: var(--spacing-xl);
	padding-top: calc(var(--spacing-xl) + 40px);
	background: var(--bg-white);
	border-radius: var(--radius-lg);
	border: 1px solid var(--border-color);
	transition: all var(--transition-base);
}

.feature-item:hover {
	border-color: var(--primary-color);
	box-shadow: var(--shadow-lg);
}

.feature-number {
	position: absolute;
	top: var(--spacing-lg);
	right: var(--spacing-lg);
	font-size: var(--font-size-3xl);
	font-weight: 800;
	color: var(--secondary-color);
	line-height: 1;
}

.feature-title {
	font-size: var(--font-size-xl);
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: var(--spacing-sm);
}

.feature-text {
	font-size: var(--font-size-base);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
}

/* ==================== Journey/Timeline Section ==================== */
.journey-section {
	padding: var(--spacing-3xl) 0;
	background: var(--bg-gray-50);
}

.timeline {
	position: relative;
	max-width: 900px;
	margin: 0 auto;
	padding-left: var(--spacing-xl);
}

/* Timeline line */
.timeline::before {
	content: '';
	position: absolute;
	left: 20px;
	top: 0;
	bottom: 0;
	width: 3px;
	background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.timeline-item {
	position: relative;
	margin-bottom: var(--spacing-2xl);
	padding-left: var(--spacing-xl);
}

.timeline-item:last-child {
	margin-bottom: 0;
}

.timeline-marker {
	position: absolute;
	left: 11px;
	top: 0;
	width: 20px;
	height: 20px;
	border-radius: var(--radius-full);
	background: var(--bg-white);
	border: 3px solid var(--primary-color);
	z-index: 2;
}

.timeline-marker.active {
	background: var(--primary-color);
	box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.1);
	animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
	0%, 100% {
		box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.1);
	}
	50% {
		box-shadow: 0 0 0 16px rgba(37, 99, 235, 0);
	}
}

.timeline-content {
	background: var(--bg-white);
	padding: var(--spacing-lg);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.timeline-content:hover {
	transform: translateX(5px);
	box-shadow: var(--shadow-lg);
}

.timeline-year {
	display: inline-block;
	font-size: var(--font-size-sm);
	font-weight: 700;
	color: var(--primary-color);
	background: var(--secondary-color);
	padding: 0.25rem 0.75rem;
	border-radius: var(--radius-full);
	margin-bottom: var(--spacing-sm);
}

.timeline-title {
	font-size: var(--font-size-xl);
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: var(--spacing-sm);
}

.timeline-description {
	font-size: var(--font-size-base);
	color: var(--text-secondary);
	line-height: var(--line-height-relaxed);
}

/* ==================== CTA Section ==================== */
.cta-section {
	padding: var(--spacing-3xl) 0;
	background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
}

.cta-card {
	max-width: 900px;
	margin: 0 auto;
}

.cta-content {
	text-align: center;
	color: white;
}

.cta-title {
	font-size: var(--font-size-3xl);
	font-weight: 800;
	margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
	.cta-title {
		font-size: var(--font-size-4xl);
	}
}

.cta-subtitle {
	font-size: var(--font-size-lg);
	margin-bottom: var(--spacing-xl);
	opacity: 0.95;
	line-height: var(--line-height-relaxed);
}

.cta-actions {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-md);
	justify-content: center;
	margin-bottom: var(--spacing-lg);
}

.cta-note {
	font-size: var(--font-size-sm);
	opacity: 0.8;
}

/* ==================== Responsive Utilities ==================== */
@media (max-width: 640px) {
	.about-btn {
		width: 100%;
	}
	
	.about-hero-actions {
		flex-direction: column;
	}
	
	.timeline {
		padding-left: var(--spacing-md);
	}
	
	.timeline::before {
		left: 10px;
	}
	
	.timeline-marker {
		left: 1px;
	}
}

/* ==================== Print Styles ==================== */
@media print {
	.about-hero {
		background: white;
		padding: 1rem 0;
	}
	
	.hero-graphic,
	.about-btn,
	.cta-section {
		display: none;
	}
	
	.animate-on-scroll {
		opacity: 1 !important;
		transform: none !important;
	}
}

/* ==================== Performance Optimizations ==================== */
/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}
	
	.orbit-group {
		animation: none;
	}
	
	.timeline-marker.active {
		animation: none;
	}
}

/* Will-change for hardware acceleration */
.about-btn,
.value-card,
.feature-item,
.timeline-content,
.mission-card,
.stat-item {
	will-change: transform;
}

/* Contain paint for performance */
.value-card,
.feature-item,
.mission-card,
.timeline-content,
.stat-item {
	contain: layout style paint;
}