/* CSS Variables for Theme */
:root {
	--bg-primary: #ffffff;
	--bg-secondary: #fafafa;
	--bg-card: #ffffff;
	--text-primary: #0a0a0a;
	--text-secondary: #737373;
	--text-muted: #a3a3a3;
	--border-color: #e5e5e5;
	--accent-primary: #0a0a0a;
	--accent-primary-hover: #262626;
	--accent-secondary: #f5f5f5;
	--gradient-from: #525252;
	--gradient-to: #0a0a0a;
	--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
	--shadow-md: 0 2px 8px 0 rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 8px 24px 0 rgba(0, 0, 0, 0.12);
	--shadow-hover: 0 12px 32px 0 rgba(0, 0, 0, 0.15);
}

[data-theme='dark'] {
	--bg-primary: #0a0a0a;
	--bg-secondary: #171717;
	--bg-card: #171717;
	--text-primary: #fafafa;
	--text-secondary: #a3a3a3;
	--text-muted: #737373;
	--border-color: #262626;
	--accent-primary: #fafafa;
	--accent-primary-hover: #e5e5e5;
	--accent-secondary: #262626;
	--gradient-from: #a3a3a3;
	--gradient-to: #fafafa;
	--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
	--shadow-md: 0 2px 8px 0 rgba(0, 0, 0, 0.5);
	--shadow-lg: 0 8px 24px 0 rgba(0, 0, 0, 0.6);
	--shadow-hover: 0 12px 32px 0 rgba(0, 0, 0, 0.7);
}

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

body {
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
		'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
	background-color: var(--bg-primary);
	color: var(--text-primary);
	line-height: 1.6;
	transition: background-color 0.3s ease, color 0.3s ease;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	padding-bottom: 100px;
	letter-spacing: -0.01em;
}

/* Container */
.container {
	max-width: 720px;
	margin: 0 auto;
	padding: 3rem 2rem;
}

/* Hero Section */
.hero-section {
	text-align: center;
	padding: 3rem 0 4rem;
}

.avatar-wrapper {
	margin-bottom: 1rem;
}

.avatar {
	width: 120px;
	height: 120px;
	border-radius: 50%;
	border: 2px solid var(--border-color);
}

.hero-title {
	font-size: clamp(2.25rem, 6vw, 3.25rem);
	font-weight: 700;
	margin-bottom: 0.75rem;
	line-height: 1.1;
	letter-spacing: -0.03em;
}

.gradient-text {
	background: linear-gradient(
		135deg,
		var(--gradient-from),
		var(--gradient-to)
	);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.hero-subtitle {
	font-size: 1.125rem;
	color: var(--text-secondary);
	margin-bottom: 0.5rem;
	font-weight: 500;
	letter-spacing: -0.01em;
}

.hero-subtitle span {
	border-bottom: 2px solid #aeabab;
}

.hero-tagline {
	font-size: 0.9375rem;
	color: var(--text-muted);
	margin-bottom: 2rem;
	letter-spacing: 0;
}

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

.contact-badge {
	display: inline-flex;
	align-items: center;
	gap: 0.625rem;
	padding: 0.875rem 1.75rem;
	background-color: var(--accent-primary);
	color: var(--bg-primary);
	text-decoration: none;
	border-radius: 10px;
	font-size: 0.875rem;
	font-weight: 500;
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	letter-spacing: -0.01em;
}

.contact-badge:hover {
	background-color: var(--accent-primary-hover);
	transform: translateY(-1px);
	box-shadow: var(--shadow-lg);
}

[data-theme='dark'] .contact-badge {
	color: var(--bg-primary);
}

/* Sections */
.section {
	margin-bottom: 5rem;
	opacity: 0;
	transform: translateY(20px);
}

.section-header {
	margin-bottom: 2rem;
}

.section-title {
	font-size: 1.75rem;
	font-weight: 700;
	margin-bottom: 0.5rem;
	letter-spacing: -0.02em;
}

.section-subtitle {
	font-size: 0.9375rem;
	color: var(--text-muted);
	font-weight: 400;
	letter-spacing: 0;
}

.section-text {
	font-size: 1rem;
	color: var(--text-secondary);
	line-height: 1.75;
	letter-spacing: -0.01em;
}

#contact {
	margin-top: 8rem;
	text-align: center;
}

.middle {
	margin: 1rem 0;
}

/* Cards */
.card {
	background-color: var(--bg-card);
	border: 1px solid var(--border-color);
	border-radius: 14px;
	padding: 1.75rem;
}

/* Timeline */
.timeline {
	display: flex;
	flex-direction: column;
	gap: 1.25rem;
}

.timeline-item {
	position: relative;
}

/* Vertical Timeline (LinkedIn-style) */
.timeline-vertical {
	position: relative;
	padding-left: 3.5rem;
}

.timeline-vertical::before {
	content: '';
	position: absolute;
	left: 1.5rem;
	top: 0;
	bottom: 0;
	width: 2px;
	background-color: var(--border-color);
}

.timeline-vertical-item {
	position: relative;
	padding-bottom: 2rem;
}

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

.timeline-vertical-marker {
	position: absolute;
	left: -3.5rem;
	top: 0;
}

.company-logo-small {
	width: 48px;
	height: 48px;
	min-width: 48px;
	border-radius: 50%;
	background-color: var(--bg-card);
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}

.company-logo-small img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.timeline-vertical-content {
	background-color: transparent;
}

.timeline-date {
	font-size: 0.8125rem;
	color: var(--text-muted);
	margin-bottom: 0.25rem;
	letter-spacing: 0;
}

.timeline-vertical-title {
	font-size: 1rem;
	font-weight: 600;
	margin-bottom: 0.25rem;
	color: var(--text-primary);
	letter-spacing: -0.01em;
}

.timeline-vertical-company {
	font-size: 0.875rem;
	color: var(--text-secondary);
	margin-bottom: 0.25rem;
	letter-spacing: 0;
}

.timeline-vertical-location {
	font-size: 0.8125rem;
	color: var(--text-muted);
	margin-bottom: 0.75rem;
	letter-spacing: 0;
}

.timeline-vertical-description {
	font-size: 0.875rem;
	color: var(--text-secondary);
	line-height: 1.6;
	letter-spacing: -0.01em;
}

.timeline-header {
	display: flex;
	gap: 1rem;
	margin-bottom: 1rem;
}

.company-logo {
	width: 56px;
	height: 56px;
	min-width: 56px;
	border-radius: 12px;
	background-color: var(--accent-secondary);
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: 0.875rem;
	color: var(--text-primary);
	border: 1px solid var(--border-color);
	letter-spacing: -0.01em;
	overflow: hidden;
}

.company-logo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.timeline-info {
	flex: 1;
}

.timeline-title {
	font-size: 1.125rem;
	font-weight: 600;
	margin-bottom: 0.375rem;
	letter-spacing: -0.01em;
}

.timeline-company {
	color: var(--text-secondary);
	font-size: 0.9375rem;
	margin-bottom: 0.25rem;
	letter-spacing: 0;
}

.timeline-period {
	color: var(--text-muted);
	font-size: 0.875rem;
	letter-spacing: 0;
}

.timeline-location {
	color: var(--text-muted);
	font-size: 0.875rem;
	letter-spacing: 0;
}

.timeline-description {
	color: var(--text-secondary);
	line-height: 1.7;
	margin-left: 0;
	padding-left: 1.25rem;
	letter-spacing: -0.01em;
}

.timeline-description li {
	margin-bottom: 0.625rem;
}

.timeline-description-single {
	color: var(--text-secondary);
	line-height: 1.7;
	letter-spacing: -0.01em;
}

.timeline-skills {
	margin-top: 1rem;
	padding-top: 1rem;
	border-top: 1px solid var(--border-color);
	color: var(--text-secondary);
	font-size: 0.875rem;
	font-weight: 500;
	letter-spacing: -0.01em;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.timeline-skills::before {
	content: '💎';
	font-size: 1rem;
}

/* Education Section */
.education-container {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
	margin-top: 2rem;
}

.education-item {
	display: flex;
	align-items: flex-start;
	gap: 1rem;
}

.education-logo {
	width: 56px;
	height: 56px;
	min-width: 56px;
	border-radius: 50%;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
}

.education-logo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.education-content {
	flex: 1;
}

.education-institution {
	font-size: 1rem;
	font-weight: 600;
	margin-bottom: 0.25rem;
	color: var(--text-primary);
	letter-spacing: -0.01em;
}

.education-degree {
	font-size: 0.875rem;
	color: var(--text-secondary);
	letter-spacing: 0;
	margin: 0;
}

.education-date {
	font-size: 0.875rem;
	color: var(--text-muted);
	letter-spacing: 0;
	white-space: nowrap;
}

.education-date p {
	margin: 0;
}

/* Skills Section */
.skills-category {
	margin-bottom: 2.5rem;
}

.skills-category:last-child {
	margin-bottom: 0;
}

.skills-category-title {
	font-size: 1rem;
	font-weight: 600;
	margin-bottom: 1rem;
	color: var(--text-primary);
	letter-spacing: -0.01em;
}

.skills-grid {
	display: flex;
	flex-wrap: wrap;
	gap: 0.625rem;
}

.skill-badge {
	display: inline-block;
	padding: 0.5rem 1rem;
	background-color: var(--accent-primary);
	color: var(--bg-primary);
	border-radius: 8px;
	font-size: 0.8125rem;
	font-weight: 500;
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	cursor: default;
	letter-spacing: -0.01em;
}

.skill-badge:hover {
	transform: translateY(-1px);
	box-shadow: var(--shadow-md);
}

[data-theme='dark'] .skill-badge {
	color: var(--bg-primary);
}

/* Projects Grid */
.projects-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.25rem;
	max-width: 100%;
}

.project-card {
	display: flex;
	flex-direction: column;
	height: 100%;
}

.project-header {
	display: flex;
	justify-content: space-between;
	align-items: flex-start;
	margin-bottom: 1rem;
	gap: 1rem;
}

.project-title {
	font-size: 1.125rem;
	font-weight: 600;
	flex: 1;
	letter-spacing: -0.01em;
}

.project-badge {
	padding: 0.25rem 0.75rem;
	background-color: var(--accent-secondary);
	color: var(--text-secondary);
	border-radius: 6px;
	font-size: 0.75rem;
	font-weight: 500;
	white-space: nowrap;
	border: 1px solid var(--border-color);
	letter-spacing: 0;
}

.project-description {
	color: var(--text-secondary);
	font-size: 0.9375rem;
	line-height: 1.7;
	margin-bottom: 1.25rem;
	flex-grow: 1;
	letter-spacing: -0.01em;
}

.project-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1.25rem;
}

.tag {
	display: inline-block;
	padding: 0.25rem 0.75rem;
	background-color: var(--accent-secondary);
	color: var(--text-secondary);
	border-radius: 6px;
	font-size: 0.75rem;
	font-weight: 500;
	border: 1px solid var(--border-color);
	letter-spacing: 0;
}

.project-links {
	display: flex;
	gap: 0.75rem;
}

.project-link {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.625rem 1.125rem;
	border-radius: 8px;
	font-size: 0.875rem;
	font-weight: 500;
	text-decoration: none;
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	letter-spacing: -0.01em;
}

.project-link.primary {
	background-color: var(--accent-primary);
	color: var(--bg-primary);
}

.project-link.primary:hover {
	background-color: var(--accent-primary-hover);
	transform: translateY(-1px);
	box-shadow: var(--shadow-md);
}

.project-link.secondary {
	background-color: var(--accent-secondary);
	color: var(--text-primary);
	border: 1px solid var(--border-color);
}

.project-link.secondary:hover {
	background-color: var(--bg-secondary);
	transform: translateY(-1px);
	border-color: var(--text-muted);
}

[data-theme='dark'] .project-link.primary {
	color: var(--bg-primary);
}

.project-link-disabled {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.625rem 1.125rem;
	border-radius: 8px;
	font-size: 0.875rem;
	font-weight: 500;
	background-color: var(--accent-secondary);
	color: var(--text-muted);
	border: 1px solid var(--border-color);
	cursor: not-allowed;
	letter-spacing: -0.01em;
}

/* Certifications Grid */
.certifications-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 1.25rem;
}

.certification-card {
	background-color: var(--bg-card);
	border: 1px solid var(--border-color);
	border-radius: 14px;
	padding: 1.75rem;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.certification-card:hover {
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.cert-info {
	flex: 1;
}

.cert-title {
	font-size: 1rem;
	font-weight: 600;
	margin-bottom: 0.5rem;
	color: var(--text-primary);
	letter-spacing: -0.01em;
}

.cert-issuer {
	font-size: 0.875rem;
	color: var(--text-secondary);
	margin-bottom: 0.25rem;
	letter-spacing: 0;
}

.cert-date {
	font-size: 0.8125rem;
	color: var(--text-muted);
	letter-spacing: 0;
	margin-bottom: 0.25rem;
}

.cert-description {
	font-size: 0.8125rem;
	color: var(--text-muted);
	letter-spacing: 0;
	font-style: italic;
}

/* Contact CTA */
.contact-cta {
	display: flex;
	justify-content: center;
	margin-top: 2rem;
}

.cta-button {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	padding: 1rem 2rem;
	background-color: var(--accent-primary);
	color: var(--bg-primary);
	text-decoration: none;
	border-radius: 10px;
	font-size: 1rem;
	font-weight: 600;
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	letter-spacing: -0.01em;
}

.cta-button:hover {
	background-color: var(--accent-primary-hover);
	transform: translateY(-1px);
	box-shadow: var(--shadow-lg);
}

[data-theme='dark'] .cta-button {
	color: var(--bg-primary);
}

/* Fixed Bottom Dock */
.dock {
	position: fixed;
	bottom: 2rem;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	align-items: center;
	gap: 0.375rem;
	padding: 0.625rem 0.875rem;
	background-color: var(--bg-card);
	border: 1px solid var(--border-color);
	border-radius: 16px;
	box-shadow: var(--shadow-lg);
	backdrop-filter: blur(12px);
	z-index: 999;
}

.dock-item {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	color: var(--text-secondary);
	border-radius: 10px;
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	text-decoration: none;
}

.dock-item:hover {
	background-color: var(--accent-secondary);
	color: var(--text-primary);
	transform: translateY(-2px);
}

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

/* Animations */
@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(12px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.animate-delay-1 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.05s;
}

.animate-delay-2 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.1s;
}

.animate-delay-3 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.15s;
}

.animate-delay-4 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.2s;
}

.animate-delay-5 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.25s;
}

.animate-delay-6 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.3s;
}

.animate-delay-7 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.35s;
}

.animate-delay-8 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.4s;
}

.animate-delay-9 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.45s;
}

.animate-delay-10 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.5s;
}

.animate-delay-11 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.55s;
}

.animate-delay-12 {
	animation: fadeInUp 0.5s ease forwards;
	animation-delay: 0.6s;
}

/* Scroll Animations */
.section.animate-in {
	animation: fadeInUp 0.5s ease forwards;
}

/* Responsive Design */
@media (max-width: 640px) {
	.container {
		padding: 2rem 1.25rem;
	}

	.hero-section {
		padding: 2rem 0 3rem;
	}

	.section {
		margin-bottom: 4rem;
	}

	.section-title {
		font-size: 1.5rem;
	}

	.dock {
		bottom: 1.25rem;
		padding: 0.5rem 0.75rem;
		gap: 0.25rem;
	}

	.dock-item {
		width: 40px;
		height: 40px;
	}

	.project-links {
		flex-direction: column;
	}

	.project-link {
		justify-content: center;
	}

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

	.skills-category {
		margin-bottom: 2rem;
	}
}

@media (max-width: 480px) {
	.hero-contact {
		flex-direction: column;
		align-items: center;
	}

	.contact-badge {
		width: 100%;
		justify-content: center;
	}

	.avatar {
		width: 100px;
		height: 100px;
	}
}

/* Smooth Scrolling */
html {
	scroll-behavior: smooth;
}

/* Selection Color */
::selection {
	background-color: var(--accent-primary);
	color: var(--bg-primary);
}

::-moz-selection {
	background-color: var(--accent-primary);
	color: var(--bg-primary);
}

/* Focus States for Accessibility */
a:focus-visible,
button:focus-visible {
	outline: 2px solid var(--accent-primary);
	outline-offset: 2px;
}