/* CSS Variables for Theme Support */
:root {
	/* Dark Mode Colors */
	--bg-primary: #0f172a;
	--bg-secondary: #1e293b;
	--bg-tertiary: #334155;
	--text-primary: #f1f5f9;
	--text-secondary: #cbd5e1;
	--text-tertiary: #94a3b8;
	--accent-primary: #60a5fa;
	--accent-secondary: #34d399;
	--accent-danger: #f87171;
	--border-color: #334155;
	--shadow-color: rgba(0, 0, 0, 0.3);
	--hero-overlay: rgba(0, 0, 0, 0.3);
	
	/* Fonts */
	--font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
	--font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

[data-theme="light"] {
	/* Light Mode Colors */
	--bg-primary: #ffffff;
	--bg-secondary: #f8fafc;
	--bg-tertiary: #f1f5f9;
	--text-primary: #1e293b;
	--text-secondary: #475569;
	--text-tertiary: #64748b;
	--accent-primary: #3b82f6;
	--accent-secondary: #10b981;
	--accent-danger: #ef4444;
	--border-color: #e2e8f0;
	--shadow-color: rgba(0, 0, 0, 0.1);
	--hero-overlay: rgba(0, 0, 0, 0.3);
}

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

html {
	scroll-behavior: smooth;
}

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

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 2rem;
}

/* Navigation */
.navbar {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background: var(--bg-primary);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--border-color);
	z-index: 1000;
	transition: all 0.3s ease;
}

.nav-container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 1rem 2rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.nav-brand {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-weight: 700;
	font-size: 1.25rem;
	color: var(--text-primary);
	text-decoration: none;
}

.logo {
	font-size: 1.5rem;
}

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

.nav-link {
	color: var(--text-secondary);
	text-decoration: none;
	font-weight: 500;
	transition: color 0.3s ease;
	position: relative;
}

.nav-link:hover {
	color: var(--accent-primary);
}

.nav-link::after {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 0;
	width: 0;
	height: 2px;
	background: var(--accent-primary);
	transition: width 0.3s ease;
}

.nav-link:hover::after {
	width: 100%;
}

.theme-toggle {
	background: none;
	border: 1px solid var(--border-color);
	border-radius: 0.5rem;
	padding: 0.5rem;
	cursor: pointer;
	transition: all 0.3s ease;
	font-size: 1rem;
}

.theme-toggle:hover {
	background: var(--bg-secondary);
	transform: scale(1.05);
}

.nav-toggle {
	display: none;
	flex-direction: column;
	gap: 4px;
	cursor: pointer;
}

.nav-toggle span {
	width: 25px;
	height: 3px;
	background: var(--text-primary);
	transition: all 0.3s ease;
}

/* Hero Section */
.hero {
	min-height: 100vh;
	position: relative;
	display: flex;
	align-items: center;
	overflow: hidden;
}

.hero-background {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(var(--hero-overlay), var(--hero-overlay)), url('hero.webp');
	background-size: cover;
	background-position: center;
	background-attachment: fixed;
}

.hero-content {
	position: relative;
	z-index: 2;
	width: 100%;
	padding: 6rem 0;
}

.hero-text {
	text-align: center;
	margin-bottom: 4rem;
}

.hero-title {
	font-size: 3.5rem;
	font-weight: 700;
	color: white;
	margin-bottom: 1.5rem;
	text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
	font-size: 1.25rem;
	color: rgba(255, 255, 255, 0.9);
	max-width: 600px;
	margin: 0 auto 2rem;
	text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-actions {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
}

.hero-stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 2rem;
	max-width: 800px;
	margin: 0 auto;
}

.stat-item {
	text-align: center;
	padding: 2rem;
	background: rgba(255, 255, 255, 0.1);
	backdrop-filter: blur(10px);
	border-radius: 1rem;
	border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--accent-secondary);
	font-family: var(--font-mono);
	margin-bottom: 0.5rem;
}

.stat-label {
	color: rgba(255, 255, 255, 0.8);
	font-size: 0.9rem;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* Buttons */
.btn {
	display: inline-flex;
	align-items: center;
	padding: 0.75rem 1.5rem;
	border-radius: 0.5rem;
	text-decoration: none;
	font-weight: 600;
	transition: all 0.3s ease;
	border: none;
	cursor: pointer;
	font-size: 1rem;
	text-align: center;
}

.btn-primary {
	background: var(--accent-primary);
	color: white;
	box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
	background: #2563eb;
	transform: translateY(-2px);
	box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

.btn-outline {
	background: rgba(255, 255, 255, 0.1);
	color: white;
	border: 2px solid rgba(255, 255, 255, 0.3);
	backdrop-filter: blur(10px);
}

.btn-outline:hover {
	background: rgba(255, 255, 255, 0.2);
	border-color: rgba(255, 255, 255, 0.5);
	transform: translateY(-2px);
}

/* Sections */
.section {
	padding: 6rem 0;
}

.section-alt {
	background: var(--bg-secondary);
}

.section-header {
	text-align: center;
	margin-bottom: 4rem;
}

.section-title {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.section-subtitle {
	font-size: 1.125rem;
	color: var(--text-secondary);
	margin: 0 auto;
}

/* About Section */
.about-content {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
	align-items: start;
}

.about-text h3 {
	font-size: 1.5rem;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.about-text p {
	color: var(--text-secondary);
	margin-bottom: 1.5rem;
}

.methodology {
	margin-top: 2rem;
}

.methodology h4 {
	color: var(--text-primary);
	margin-bottom: 1rem;
}

.methodology ul {
	list-style: none;
	padding: 0;
}

.methodology li {
	position: relative;
	padding-left: 1.5rem;
	margin-bottom: 0.5rem;
	color: var(--text-secondary);
}

.methodology li::before {
	content: '✓';
	position: absolute;
	left: 0;
	color: var(--accent-secondary);
	font-weight: bold;
}

.about-visual {
	background: var(--bg-tertiary);
	border-radius: 1rem;
	overflow: hidden;
	border: 1px solid var(--border-color);
}

.code-block {
	background: var(--bg-primary);
	border-radius: 0.5rem;
	overflow: hidden;
}

.code-header {
	background: var(--bg-tertiary);
	padding: 0.75rem 1rem;
	border-bottom: 1px solid var(--border-color);
	font-size: 0.875rem;
	color: var(--text-secondary);
}

.code-content {
	padding: 1rem;
	font-family: var(--font-mono);
	font-size: 0.875rem;
}

.code-line {
	margin-bottom: 0.5rem;
	color: var(--text-secondary);
}

.code-comment {
	color: var(--text-tertiary);
}

.code-string {
	color: var(--accent-primary);
}

.code-danger {
	color: var(--accent-danger);
	font-weight: bold;
}

.code-success {
	color: var(--accent-secondary);
	font-weight: bold;
}

/* Services Grid */
.services-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 2rem;
}

.service-card {
	background: var(--bg-primary);
	padding: 2rem;
	border-radius: 1rem;
	border: 1px solid var(--border-color);
	transition: all 0.3s ease;
	text-align: center;
}

.service-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 30px var(--shadow-color);
}

.service-icon {
	font-size: 2.5rem;
	margin-bottom: 1rem;
}

.service-title {
	font-size: 1.25rem;
	font-weight: 600;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.service-description {
	color: var(--text-secondary);
	line-height: 1.6;
}

/* Achievements Section */
.achievements-showcase {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
	align-items: start;
}

.achievement-badge {
	background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
	color: white;
	padding: 2rem;
	border-radius: 1rem;
	text-align: center;
	box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.badge-icon {
	font-size: 3rem;
	margin-bottom: 1rem;
}

.badge-content h3 {
	font-size: 1.5rem;
	margin-bottom: 1rem;
}

.cve-id {
	font-family: var(--font-mono);
	font-size: 1.25rem;
	font-weight: bold;
	background: rgba(255, 255, 255, 0.2);
	padding: 0.5rem 1rem;
	border-radius: 0.5rem;
	margin-bottom: 1rem;
	backdrop-filter: blur(10px);
}

.detail-item {
	margin-bottom: 2rem;
}

.detail-item h4 {
	font-size: 1.25rem;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.detail-item p {
	color: var(--text-secondary);
	margin-bottom: 1rem;
}

.tech-tags {
	display: flex;
	gap: 0.5rem;
	flex-wrap: wrap;
	margin-bottom: 1rem;
}

.tech-tag {
	background: var(--bg-tertiary);
	color: var(--text-primary);
	padding: 0.25rem 0.75rem;
	border-radius: 1rem;
	font-size: 0.875rem;
	font-weight: 500;
	border: 1px solid var(--border-color);
}

.timeline {
	background: var(--bg-tertiary);
	border-radius: 0.5rem;
	padding: 1rem;
	border: 1px solid var(--border-color);
}

.timeline-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 0.75rem 0;
	border-bottom: 1px solid var(--border-color);
}

.timeline-item:last-child {
	border-bottom: none;
}

.timeline-date {
	font-family: var(--font-mono);
	font-weight: 600;
	color: var(--accent-primary);
	font-size: 0.875rem;
}

.timeline-event {
	color: var(--text-secondary);
	font-size: 0.875rem;
}

/* Contact Section */
.contact-content {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
}

.contact-info h3 {
	font-size: 1.5rem;
	margin-bottom: 1rem;
	color: var(--text-primary);
}

.contact-info p {
	color: var(--text-secondary);
	margin-bottom: 2rem;
}

.contact-method {
	display: flex;
	align-items: center;
	gap: 1rem;
	padding: 1rem;
	background: var(--bg-primary);
	border-radius: 0.5rem;
	border: 1px solid var(--border-color);
	margin-bottom: 1rem;
}

.contact-icon {
	font-size: 1.25rem;
}

.contact-details {
	display: flex;
	flex-direction: column;
}

.contact-details strong {
	color: var(--text-primary);
	margin-bottom: 0.25rem;
}

.contact-details span {
	color: var(--text-secondary);
	font-size: 0.875rem;
}

/* Forms */
.contact-form {
	background: var(--bg-primary);
	padding: 2rem;
	border-radius: 1rem;
	border: 1px solid var(--border-color);
}

.form-group {
	margin-bottom: 1.5rem;
}

.form-group label {
	display: block;
	margin-bottom: 0.5rem;
	font-weight: 500;
	color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
	width: 100%;
	padding: 0.75rem;
	border: 1px solid var(--border-color);
	border-radius: 0.5rem;
	background: var(--bg-secondary);
	color: var(--text-primary);
	font-family: inherit;
	transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
	outline: none;
	border-color: var(--accent-primary);
	box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
	resize: vertical;
	min-height: 120px;
}

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

.footer-content {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
}

.footer-brand {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-weight: 700;
	font-size: 1.125rem;
	color: var(--text-primary);
}

.footer-text {
	text-align: right;
}

.footer-text p {
	color: var(--text-secondary);
	font-size: 0.875rem;
	margin-bottom: 0.25rem;
}

.footer-note {
	color: var(--text-tertiary);
	font-size: 0.75rem;
}

/* Responsive Design */
@media (max-width: 768px) {
	.nav-menu {
		position: fixed;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--bg-primary);
		flex-direction: column;
		padding: 2rem;
		gap: 1rem;
		border-top: 1px solid var(--border-color);
		transform: translateY(-100%);
		opacity: 0;
		visibility: hidden;
		transition: all 0.3s ease;
	}

	.nav-menu.active {
		transform: translateY(0);
		opacity: 1;
		visibility: visible;
	}

	.nav-toggle {
		display: flex;
	}

	.nav-toggle.active span:nth-child(1) {
		transform: rotate(45deg) translate(5px, 5px);
	}

	.nav-toggle.active span:nth-child(2) {
		opacity: 0;
	}

	.nav-toggle.active span:nth-child(3) {
		transform: rotate(-45deg) translate(7px, -6px);
	}

	.hero-title {
		font-size: 2.5rem;
	}

	.hero-actions {
		flex-direction: column;
		align-items: center;
	}

	.about-content,
	.achievements-showcase,
	.contact-content {
		grid-template-columns: 1fr;
		gap: 2rem;
	}

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

	.footer-text {
		text-align: center;
	}

	.container {
		padding: 0 1rem;
	}

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

@media (max-width: 480px) {
	.hero-title {
		font-size: 2rem;
	}

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

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

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