:root {
    /* Color Palette */
    --color-bg-deep: #050505;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.07);

    --color-primary: #a855f7;
    /* Athero Purple */
    --color-primary-glow: rgba(168, 85, 247, 0.5);

    --color-accent: #10b981;
    /* Life Green */
    --color-accent-glow: rgba(16, 185, 129, 0.5);

    --color-text-main: #ffffff;
    --color-text-muted: #a3a3a3;

    --color-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-container: 1200px;
    --spacing-section: 6rem;

    /* Transitions & Effects */
    --transition-main: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-glow: rgba(168, 85, 247, 0.15);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-main);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

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

body {
    background-color: var(--color-bg-deep);
    color: var(--color-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Utilities */
.container {
    max-width: var(--spacing-container);
    margin: 0 auto;
    padding: 0 2rem;
}

.glow-text {
    text-shadow: 0 0 20px var(--color-primary-glow);
}

.gradient-text {
    background: linear-gradient(135deg, #fff 0%, var(--color-text-muted) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 100%);
    color: white;
    box-shadow: 0 4px 20px var(--color-primary-glow);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

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

.btn-secondary:hover {
    border-color: var(--color-text-main);
    background: var(--color-bg-card);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo img {
    height: 48px;
    filter: invert(1);
}

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

.nav-links a {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

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

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-dropdown-toggle::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.25rem;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .nav-dropdown-toggle::after {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 0.5rem;
    background: linear-gradient(135deg, #0a0a0a 0%, #121212 100%);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 0.5rem 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-dropdown-menu a:hover {
    color: var(--color-text-main);
    background: var(--color-bg-card);
    padding-left: 2rem;
}

.nav-dropdown-menu a.active {
    color: var(--color-primary);
    background: rgba(168, 85, 247, 0.1);
}

/* Hero Section */
.hero {
    padding-top: 180px;
    padding-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-text {
    text-align: center;
    max-width: 1200px;
    width: 100%;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    white-space: nowrap;
}

.hero-text p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-visual {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--color-border);
}

.hero-visual img {
    width: 100%;
    display: block;
    transition: transform 0.5s ease;
}

.hero-visual:hover img {
    transform: scale(1.02);
}

/* Product Section */
.product {
    padding: var(--spacing-section) 0;
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, #0a0a0a 100%);
}

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

.publications-hero .section-header {
    margin-bottom: 1rem;
}

.section-label {
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 1rem;
    display: block;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--color-bg-card-hover);
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(168, 85, 247, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Technology Section */
.technology {
    padding: var(--spacing-section) 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--color-bg-card);
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.5rem;
}

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

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--color-border);
    margin-top: 4rem;
}

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

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    background: linear-gradient(135deg, #0a0a0a 0%, #121212 100%);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-text-main);
}

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

.modal-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-main);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-card-hover);
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
}

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

.form-message {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 8px;
    text-align: center;
}

.form-message p {
    color: var(--color-accent);
    margin: 0;
    font-weight: 500;
}

@media (max-width: 768px) {

    .hero-content,
    .tech-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
        /* Mobile menu logic needed later */
    }

    .nav-dropdown-menu {
        left: 0;
        transform: translateX(0);
    }

    .nav-dropdown:hover .nav-dropdown-menu {
        transform: translateX(0);
    }

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

    .modal-content {
        padding: 2rem;
        width: 95%;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }
}

/* About Page Specific Styles */
.about-hero {
    padding-top: 180px;
    padding-bottom: 3rem;
    text-align: center;
}

.about-hero .section-header {
    margin-bottom: 1rem;
}

.about-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.about-nav-link {
    padding: 0.75rem 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: var(--transition-main);
    font-size: 0.95rem;
}

.about-nav-link:hover {
    color: var(--color-text-main);
    border-color: var(--color-primary);
    background: var(--color-bg-card-hover);
    transform: translateY(-2px);
}

.about-nav-link:active,
.about-nav-link.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 100%);
    border-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.team-section {
    padding-top: 2rem;
    padding-bottom: var(--spacing-section);
    scroll-margin-top: 100px;
}

.team-section .section-header {
    margin-bottom: 0;
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
}

.team-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 3rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    align-items: start;
}

.team-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.member-image {
    width: 280px;
    height: 350px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

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

.team-card:hover .member-image img {
    transform: scale(1.05);
}

.member-info .member-role {
    display: inline-block;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.member-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.member-bio {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0;
}

@media (max-width: 992px) {
    .team-card {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }

    .member-image {
        width: 100%;
        height: 400px;
    }
}

@media (max-width: 768px) {
    .member-image {
        height: 300px;
    }

    .member-info h3 {
        font-size: 1.5rem;
    }
}

/* Publications Preview Section */
.publications-preview-section {
    padding: var(--spacing-section) 0;
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, #0a0a0a 100%);
    scroll-margin-top: 100px;
}

.publications-preview {
    max-width: 900px;
    margin: 3rem auto 0;
    text-align: center;
}

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

.preview-stat {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-main);
}

.preview-stat:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.preview-stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

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

.publications-preview-cta {
    margin-top: 2rem;
}

/* Technology Section */
.technology-section {
    padding-top: 2rem;
    padding-bottom: var(--spacing-section);
    scroll-margin-top: 100px;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tech-feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-main);
}

.tech-feature-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.tech-feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(168, 85, 247, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.tech-feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-main);
}

.tech-feature-card p {
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
}

@media (max-width: 768px) {
    .tech-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tech-feature-card {
        padding: 2rem;
    }

    .tech-feature-card h3 {
        font-size: 1.25rem;
    }
}

/* History/Timeline Section */
.history-section {
    padding-top: 2rem;
    padding-bottom: var(--spacing-section);
    scroll-margin-top: 100px;
}

.timeline {
    max-width: 800px;
    margin: 2rem auto 0;
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0.5rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-bg-deep);
    box-shadow: 0 0 0 4px rgba(168, 85, 247, 0.3),
        0 0 20px var(--color-primary-glow);
    z-index: 1;
}

.timeline-date {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
}

.timeline-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-main);
}

.timeline-content:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateX(8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3),
        0 0 20px var(--glass-glow);
}

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

.timeline-content p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .about-nav {
        gap: 1rem;
    }

    .about-nav-link {
        padding: 0.625rem 1.5rem;
        font-size: 0.875rem;
    }

    .publication-preview-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .timeline {
        padding-left: 2rem;
    }

    .timeline-item {
        padding-left: 1.5rem;
    }

    .timeline-item::before {
        left: -1.75rem;
        width: 12px;
        height: 12px;
    }

    .timeline-content {
        padding: 1.5rem;
    }

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

/* Publications Page Specific Styles */
.publications-hero {
    padding-top: 180px;
    padding-bottom: 3rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.publications-hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    opacity: 0.3;
    z-index: -1;
    filter: blur(60px);
}

.publications-section {
    padding-top: 2rem;
    padding-bottom: var(--spacing-section);
}

.publication-category {
    margin-bottom: 5rem;
}

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

.category-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-text-main);
}

.publication-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.publication-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-main);
    align-items: start;
}

.publication-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-primary);
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 20px var(--glass-glow);
}

.publication-year {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    padding-top: 0.25rem;
}

.publication-content {
    flex: 1;
}

.publication-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 1rem;
    line-height: 1.5;
    font-family: var(--font-body);
}

.publication-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.publication-journal {
    font-weight: 600;
    color: var(--color-accent);
    font-style: italic;
}

.publication-volume {
    color: var(--color-text-muted);
}

.publication-year-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: 12px;
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
}

.publication-ai-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 12px;
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 600;
}

.publication-note {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 12px;
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 600;
}

.publication-authors {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

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

@media (max-width: 768px) {
    .publication-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1.5rem;
    }

    .publication-year {
        text-align: left;
        font-size: 1rem;
    }

    .publication-title {
        font-size: 1rem;
    }

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