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

:root {
    /* Computational Biology Palette - Deep ocean meets neural network */
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent-bio: #06b6d4;
    --accent-code: #a855f7;
    --accent-data: #22c55e;
    --accent-warm: #f97316;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --glass-bg: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(148, 163, 184, 0.1);
    --glow-bio: 0 0 40px rgba(6, 182, 212, 0.3);
    --glow-code: 0 0 40px rgba(168, 85, 247, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated Background */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* DNA Helix Animation Canvas */
#dna-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.4;
}

/* Floating Particles */
.particles {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-bio);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.particle:nth-child(2n) { background: var(--accent-code); animation-delay: -5s; }
.particle:nth-child(3n) { background: var(--accent-data); animation-delay: -10s; }
.particle:nth-child(4n) { background: var(--accent-warm); animation-delay: -15s; }

@keyframes float {
    0%, 100% { transform: translateY(100vh) translateX(0) rotate(0deg); opacity: 0; }
    10% { opacity: 0.5; }
    90% { opacity: 0.5; }
    100% { transform: translateY(-100vh) translateX(100px) rotate(720deg); opacity: 0; }
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

nav.scrolled {
    padding: 0.5rem 0;
    background: rgba(15, 23, 42, 0.95);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-bio), var(--accent-code));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-bio), var(--accent-code));
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--accent-bio), var(--accent-code));
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-bio);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 8rem 2rem 4rem;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-bio);
    margin-bottom: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    background: var(--accent-data);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-bio) 50%, var(--accent-code) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    background: linear-gradient(135deg, var(--accent-bio), var(--accent-code));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.btn {
    padding: 0.9rem 1.8rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-bio), var(--accent-code));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--glow-bio);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-bio);
}

/* Hero Visual - Code + Biology Fusion */
.hero-visual {
    position: relative;
    height: 500px;
}

.code-window {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 480px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--glow-code);
    backdrop-filter: blur(10px);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--glass-border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

.code-title {
    margin-left: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.code-content {
    padding: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-line {
    display: flex;
    gap: 1rem;
}

.line-number {
    color: var(--text-muted);
    user-select: none;
    min-width: 24px;
    text-align: right;
}

.code-keyword { color: #c792ea; }
.code-function { color: #82aaff; }
.code-string { color: #c3e88d; }
.code-comment { color: #546e7a; }
.code-variable { color: #f78c6c; }
.code-type { color: #ffcb6b; }

/* DNA Visualization Card */
.dna-card {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 280px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    box-shadow: var(--glow-bio);
}

.dna-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.dna-card-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-bio), var(--accent-data));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.dna-card-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.dna-card-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dna-sequence {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.base {
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-weight: 600;
}

.base-a { background: rgba(239, 68, 68, 0.2); color: #ef4444; }
.base-t { background: rgba(34, 197, 94, 0.2); color: #22c55e; }
.base-g { background: rgba(234, 179, 8, 0.2); color: #eab308; }
.base-c { background: rgba(6, 182, 212, 0.2); color: #06b6d4; }

.dna-bar {
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    overflow: hidden;
}

.dna-bar-fill {
    height: 100%;
    width: 78%;
    background: linear-gradient(90deg, var(--accent-bio), var(--accent-data));
    border-radius: 2px;
    animation: progressPulse 2s infinite;
}

@keyframes progressPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Sections */
.section {
    padding: 6rem 2rem;
    position: relative;
    z-index: 10;
}

/* Page Header for non-home pages */
.page-header {
    padding: 10rem 2rem 4rem;
    position: relative;
    z-index: 10;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

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

.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-bio);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-label::before {
    content: '';
    width: 30px;
    height: 2px;
    background: var(--accent-bio);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.about-image-container {
    position: relative;
}

.about-image {
    width: 100%;
    max-width: 350px;
    border-radius: 20px;
    border: 2px solid var(--glass-border);
    position: relative;
    z-index: 2;
}

.about-image-decoration {
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid var(--accent-bio);
    border-radius: 20px;
    z-index: 1;
    opacity: 0.3;
}

.about-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.about-tag {
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-bio);
    font-family: 'JetBrains Mono', monospace;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.skill-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-bio), var(--accent-code));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-bio);
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-bio);
}

.skill-card:nth-child(2) .skill-icon { color: var(--accent-code); }
.skill-card:nth-child(3) .skill-icon { color: var(--accent-data); }
.skill-card:nth-child(4) .skill-icon { color: var(--accent-warm); }

.skill-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-list li::before {
    content: '>';
    color: var(--accent-bio);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

/* Experience Section */
.experience-grid {
    display: grid;
    gap: 2rem;
}

.exp-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 3rem;
    padding: 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all 0.3s ease;
    position: relative;
}

.exp-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-bio), var(--accent-code));
    border-radius: 3px 0 0 3px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.exp-card:hover {
    border-color: var(--accent-bio);
}

.exp-card:hover::before {
    opacity: 1;
}

.exp-date {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-bio);
}

.exp-location {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.exp-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.exp-company {
    color: var(--accent-code);
    font-weight: 600;
    margin-bottom: 1rem;
}

.exp-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.exp-description ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.exp-description li {
    margin-bottom: 0.5rem;
}

.exp-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.exp-tech span {
    padding: 0.3rem 0.8rem;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--accent-code);
    font-family: 'JetBrains Mono', monospace;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-bio);
    box-shadow: var(--glow-bio);
}

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-card.featured .project-image {
    height: 100%;
    min-height: 300px;
}

.project-image-icon {
    font-size: 4rem;
    color: var(--accent-bio);
    opacity: 0.5;
    z-index: 1;
}

.project-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(168, 85, 247, 0.2) 0%, transparent 50%);
}

.project-content {
    padding: 2rem;
}

.project-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--accent-bio);
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech-stack span {
    padding: 0.25rem 0.6rem;
    background: var(--primary-light);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--accent-bio);
}

/* Publications Section */
.publications-list {
    display: grid;
    gap: 1.5rem;
}

.pub-card {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    align-items: start;
    transition: all 0.3s ease;
}

.pub-card:hover {
    border-color: var(--accent-bio);
}

.pub-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-bio);
}

.pub-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.pub-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.pub-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pub-status {
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}

.pub-status.ongoing {
    background: rgba(234, 179, 8, 0.1);
    color: #eab308;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.pub-status.completed {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link:hover {
    border-color: var(--accent-bio);
    transform: translateX(10px);
}

.contact-link i {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-bio);
}

.contact-link span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-form {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--primary-light);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-bio);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    padding: 3rem 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    position: relative;
    z-index: 10;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    border-color: var(--accent-bio);
    color: var(--accent-bio);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Menu Overlay */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.98);
    z-index: 999;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.mobile-menu a:hover {
    color: var(--accent-bio);
}

.mobile-menu-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 1200px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

    .hero-visual {
        display: none;
    }

    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image-container {
        display: flex;
        justify-content: center;
    }

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

    .project-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat {
        text-align: center;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
    }

    .pub-card {
        grid-template-columns: 1fr;
    }

    .pub-icon {
        display: none;
    }

    .pub-status {
        justify-self: start;
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Typing animation */
.typing-cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}