/* ==================== */
/* CSS Variables - Easy to customize! */
/* ==================== */
:root {
    /* Main Color Palette */
    --warm-terracotta: #E89E7C;
    --warm-light: #F2C4A5;
    --fuchsia: #E85D9A;
    --fuchsia-light: #F598C3;
    --green: #7FAB8C;
    --green-dark: #5D8B6D;
    
    /* Neutrals */
    --white: #FFFFFF;
    --cream: #FAF8F5;
    --light-gray: #F5F5F5;
    --gray: #6B7280;
    --dark: #1F2937;
    
    /* Fonts */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--dark);
    background: var(--cream);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==================== */
/* Navigation */
/* ==================== */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(250, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(232, 158, 124, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo:hover {
    color: var(--fuchsia);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--fuchsia);
    transition: width 0.3s ease;
}

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

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

/* ==================== */
/* Hero Section */
/* ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--cream) 0%, var(--white) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

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

.hero-photo-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-photo-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.hero-photo-frame {
    position: absolute;
    top: -12px;
    left: -12px;
    right: -12px;
    bottom: -12px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--fuchsia) 0%, var(--warm-terracotta) 50%, var(--green) 100%);
    z-index: 0;
}

.hero-photo {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 12px;
    object-fit: cover;
    border: 4px solid var(--white);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
    display: block;
}

.hero-photo-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--warm-light) 0%, var(--fuchsia-light) 50%, var(--green) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1rem;
    text-align: center;
    padding: 2rem;
    border: 4px solid var(--white);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--dark);
}

.hero-title .accent {
    background: linear-gradient(135deg, var(--fuchsia) 0%, var(--warm-terracotta) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.hero-contact-info {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.hero-contact-info a {
    color: var(--fuchsia);
    text-decoration: none;
    transition: color 0.3s ease;
}

.hero-contact-info a:hover {
    color: var(--warm-terracotta);
}

.hero-contact-info p {
    margin: 0.25rem 0;
    color: var(--gray);
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.tag-warm {
    background: var(--warm-light);
    color: #8B4513;
}

.tag-fuchsia {
    background: var(--fuchsia-light);
    color: #8B1654;
}

.tag-green {
    background: var(--green);
    color: var(--white);
}

/* ==================== */
/* Section Titles */
/* ==================== */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--warm-terracotta), var(--fuchsia), var(--green));
    border-radius: 2px;
}

/* ==================== */
/* About Section */
/* ==================== */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--gray);
    font-size: 1.05rem;
    line-height: 1.8;
}

.skills h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

.skills h3:not(:first-child) {
    margin-top: var(--spacing-md);
}

.skills-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.skills-list li {
    padding: 0.5rem 0;
    color: var(--gray);
    position: relative;
    padding-left: 1.5rem;
}

.skills-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--fuchsia);
    font-weight: 600;
}

/* ==================== */
/* Research/Projects Section */
/* ==================== */
.research {
    padding: var(--spacing-xl) 0;
    background: var(--cream);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.project-header h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--dark);
    flex: 1;
}

.project-tag {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    white-space: nowrap;
}

.project-description {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.project-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.project-link {
    color: var(--fuchsia);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--warm-terracotta);
}

/* ==================== */
/* Publications Section */
/* ==================== */
.publications {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.publications-intro {
    text-align: center;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.publications-intro a {
    color: var(--fuchsia);
    text-decoration: none;
    font-weight: 500;
}

.publications-intro a:hover {
    color: var(--warm-terracotta);
}

.publication-item {
    background: var(--cream);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--fuchsia);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.publication-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.publication-item h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.publication-authors {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.publication-venue {
    color: var(--gray);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
}

.publication-venue strong {
    color: var(--dark);
    font-style: normal;
}

.publication-links {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    color: var(--fuchsia);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--fuchsia);
}

.publication-link:hover {
    background: var(--fuchsia);
    color: var(--white);
    transform: translateY(-2px);
}

/* ==================== */
/* Gallery Section */
/* ==================== */
.gallery-section {
    padding: var(--spacing-xl) 0;
    background: var(--cream);
}

.gallery-intro {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.gallery-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 8px;
    aspect-ratio: 1;
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 500;
    font-size: 0.9rem;
}

/* ==================== */
/* Lightbox */
/* ==================== */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
}

#lightbox-caption {
    color: var(--white);
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: 1.1rem;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    color: var(--white);
    font-size: 40px;
    font-weight: 300;
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 2001;
}

.lightbox-close:hover {
    color: var(--fuchsia);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: none;
    font-size: 2rem;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: background 0.3s ease;
    border-radius: 4px;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ==================== */
/* Contact Section */
/* ==================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.contact-content {
    max-width: 700px;
    margin: var(--spacing-lg) auto 0;
    text-align: center;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--white);
    color: var(--dark);
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-link:hover {
    border-color: var(--fuchsia);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(232, 93, 154, 0.2);
}

.contact-link svg {
    width: 20px;
    height: 20px;
}

/* ==================== */
/* Footer */
/* ==================== */
.footer {
    padding: var(--spacing-md);
    text-align: center;
    background: var(--cream);
    color: var(--gray);
    font-size: 0.9rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* ==================== */
/* Responsive Design */
/* ==================== */
@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-links a {
        font-size: 0.85rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .hero-photo-container {
        order: -1;
        margin-bottom: var(--spacing-md);
    }
    
    .hero-photo-wrapper {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .hero-tags {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .contact-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .contact-link {
        justify-content: center;
    }
    
    .lightbox-nav {
        padding: 0.5rem 1rem;
        font-size: 1.5rem;
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .hero-tags {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tag {
        display: inline-block;
    }
}