/* Modern Personal Website - Harshana Weerasinghe */

/* CSS Variables - Dark Theme (Default) */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --dark-bg: #0f172a;
    --darker-bg: #020617;
    --light-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --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);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
    --primary-color: #4f46e5;
    --secondary-color: #7c3aed;
    --accent-color: #db2777;
    --dark-bg: #ffffff;
    --darker-bg: #f8fafc;
    --light-bg: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --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);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    position: relative;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Theme Toggle Button */
.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: rotate(180deg);
}

.theme-toggle i {
    font-size: 1.125rem;
}

[data-theme="light"] .theme-toggle {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 6rem 2rem 4rem;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.glitch {
    position: relative;
    display: inline-block;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% { transform: translateX(0); }
    91% { transform: translateX(-2px); }
    92% { transform: translateX(2px); }
    93% { transform: translateX(-2px); }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.hero-location {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.tag {
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 2rem;
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.tag:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: float-image 6s ease-in-out infinite;
}

@keyframes float-image {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.image-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-1);
    opacity: 0.3;
    animation: rotate 10s linear infinite;
    z-index: -1;
}

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

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-secondary);
    border-radius: 15px;
    position: relative;
    animation: mouse-scroll 2s infinite;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 2px;
    animation: scroll-wheel 2s infinite;
}

@keyframes mouse-scroll {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes scroll-wheel {
    0% { transform: translate(-50%, 0); opacity: 1; }
    100% { transform: translate(-50%, 15px); opacity: 0; }
}

/* Section Styles */
.section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.section-description {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 2rem auto;
}

/* About Section */
.about-section {
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
}

.about-text .lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 0.5rem;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: var(--transition);
}

.stat:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.highlight-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.highlight-card:hover {
    transform: translateX(10px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

.highlight-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.highlight-card p {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

/* Experience Section */
.experience-section {
    background: var(--dark-bg);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 4rem auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -2.4rem;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--dark-bg);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.03);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(10px);
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-location {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-role {
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.timeline-period {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.timeline-content p {
    color: var(--text-muted);
}

.certifications {
    margin-top: 4rem;
}

.subsection-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    display: block;
    width: 100%;
}

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

.cert-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

.cert-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.cert-card h4 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cert-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Skills Section */
.skills-section {
    background: var(--darker-bg);
}

.skills-container {
    margin-top: 4rem;
    display: grid;
    gap: 2rem;
}

.skill-category {
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.skill-category:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

.skill-category h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-category h3 i {
    color: var(--primary-color);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tags span {
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 0.375rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.skill-tags span:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Photography Section */
.photography-section {
    background: var(--dark-bg);
}

.photo-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.photo-link {
    padding: 0.875rem 2rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 0.5rem;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.photo-link:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 0.75rem;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* Contact Section */
.contact-section {
    background: var(--darker-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-item h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-item p,
.contact-item a {
    color: var(--text-secondary);
}

.contact-item a:hover {
    color: var(--primary-color);
}

.social-links h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.05);
}

.social-link.github:hover { border-color: #333; }
.social-link.linkedin:hover { border-color: #0077b5; }
.social-link.twitter:hover { border-color: #1da1f2; }
.social-link.facebook:hover { border-color: #1877f2; }
.social-link.upwork:hover { border-color: #14a800; }
.social-link.flickr:hover { border-color: #ff0084; }

.social-link i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.social-link span {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--darker-bg);
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Animations */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

/* Light Theme Specific Adjustments */
[data-theme="light"] .hero {
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .hero-particles {
    background-image:
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
}

[data-theme="light"] .tag {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

[data-theme="light"] .btn-secondary {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .highlight-card,
[data-theme="light"] .skill-category,
[data-theme="light"] .timeline-content,
[data-theme="light"] .cert-card,
[data-theme="light"] .social-link {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .stat {
    background: rgba(99, 102, 241, 0.03);
    border: 1px solid rgba(99, 102, 241, 0.08);
}

[data-theme="light"] .timeline::before {
    background: linear-gradient(180deg, #4f46e5, #7c3aed);
}

[data-theme="light"] .timeline-dot {
    border-color: var(--dark-bg);
}

/* Responsive Design */

/* Tablet and Small Desktop */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }

    .hero-content {
        gap: 3rem;
    }

    .about-content {
        gap: 3rem;
    }

    .cert-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* Tablet */
@media (max-width: 968px) {
    .nav-container {
        padding: 1rem 1.5rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-xl);
        padding: 2rem 0;
        gap: 0;
        z-index: 999;
    }

    [data-theme="light"] .nav-menu {
        background: var(--dark-bg);
        border-top: 1px solid rgba(0, 0, 0, 0.1);
    }

    .nav-menu li {
        width: 100%;
        padding: 0.75rem 0;
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: 0.75rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .theme-toggle {
        margin-left: auto;
        margin-right: 1rem;
        width: 36px;
        height: 36px;
    }

    .hero {
        padding: 5rem 1.5rem 3rem;
        min-height: auto;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-text {
        text-align: center;
        order: 2;
    }

    .hero-image {
        order: 1;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .hero-subtitle {
        font-size: 1.375rem;
    }

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

    .hero-buttons {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .about-highlights {
        gap: 1rem;
    }

    .timeline {
        padding-left: 1.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .social-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .skill-category h3 {
        font-size: 1.125rem;
    }

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

/* Mobile */
@media (max-width: 640px) {
    .nav-container {
        padding: 0.875rem 1rem;
    }

    .nav-logo {
        font-size: 1.25rem;
    }

    .theme-toggle {
        width: 32px;
        height: 32px;
        margin-right: 0.75rem;
    }

    .theme-toggle i {
        font-size: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.875rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 4rem 1rem 2rem;
    }

    .hero-title {
        font-size: 1.875rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-description {
        font-size: 0.9375rem;
    }

    .hero-location {
        font-size: 0.875rem;
    }

    .hero-tags {
        gap: 0.5rem;
    }

    .tag {
        padding: 0.375rem 0.75rem;
        font-size: 0.8125rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }

    .hero-image {
        max-width: 280px;
    }

    .scroll-indicator {
        display: none;
    }

    .about-text .lead {
        font-size: 1.125rem;
    }

    .about-text p {
        font-size: 0.9375rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat {
        padding: 1.25rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.8125rem;
    }

    .highlight-card {
        padding: 1.5rem;
    }

    .highlight-card i {
        font-size: 1.75rem;
    }

    .highlight-card h3 {
        font-size: 1.125rem;
    }

    .highlight-card p {
        font-size: 0.875rem;
    }

    .timeline {
        padding-left: 1rem;
    }

    .timeline-content {
        padding: 1.25rem;
    }

    .timeline-content h3 {
        font-size: 1.25rem;
    }

    .timeline-location,
    .timeline-role,
    .timeline-period {
        font-size: 0.875rem;
    }

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

    .cert-card {
        padding: 1.5rem;
    }

    .cert-card i {
        font-size: 2.5rem;
    }

    .cert-card h4 {
        font-size: 1rem;
    }

    .skill-category {
        padding: 1.5rem;
    }

    .skill-category h3 {
        font-size: 1rem;
    }

    .skill-tags {
        gap: 0.5rem;
    }

    .skill-tags span {
        padding: 0.375rem 0.75rem;
        font-size: 0.8125rem;
    }

    .photo-links {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .photo-link {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

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

    .contact-item {
        gap: 1rem;
    }

    .contact-item i {
        font-size: 1.25rem;
    }

    .contact-item h3 {
        font-size: 1rem;
    }

    .contact-item p,
    .contact-item a {
        font-size: 0.875rem;
    }

    .social-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .social-link {
        padding: 0.875rem;
    }

    .social-link i {
        font-size: 1.125rem;
    }

    .social-link span {
        font-size: 0.875rem;
    }

    .footer {
        padding: 1.5rem 0;
    }

    .footer p {
        font-size: 0.875rem;
    }
}

/* Small Mobile */
@media (max-width: 375px) {
    .hero-title {
        font-size: 1.625rem;
    }

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

    .section-title {
        font-size: 1.625rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    .about-stats {
        gap: 0.75rem;
    }

    .stat {
        padding: 1rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }
}