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

:root {
    --primary-color: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary-color: #60a5fa;
    --accent-color: #93c5fd;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --bg-light: #f0f9ff;
    --bg-white: #ffffff;
    --border-color: #e0f2fe;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter Light', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Header styles */
header {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid #f0f0f0;
}

.profile-container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.profile-picture {
    flex-shrink: 0;
}

.profile-picture img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.profile-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

h1 {
    font-family: 'Crimson Text', 'Times New Roman', serif;
    font-weight: 1000;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-light);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 5px;
}

.social-button {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--accent-color);
    border-radius: 30px;
    text-decoration: none;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.social-button:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Introduction section */
.intro {
    margin-bottom: 60px;
}

.script-heading {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-style: italic;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.intro p {
    font-size: 1.1rem;
    margin-bottom: 15px;
    max-width: 800px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23a)"/><circle cx="800" cy="300" r="200" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/><circle cx="900" cy="800" r="180" fill="url(%23a)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

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

.hero-content {
    max-width: 1200px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-title {
    font-size: 6rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.2;
    background: linear-gradient(45deg, #ffffff, var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 2rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Social Links in Hero */
.hero .social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.hero .social-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.hero .social-button:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero .social-button i {
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    margin-top: 0;
}

.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-dark);
}

/* Bio Section */
.bio-container {
    max-width: 900px;
    margin: 0 auto;
}

.bio-image-wrapper {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.bio-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    display: block;
    margin: 0 auto;
    position: relative;
    -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

.bio-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.bio-content p {
    margin-bottom: 20px;
}

.bio-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.bio-content a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Publications Grid */
.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.publication-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.publication-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.publication-year {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    align-self: flex-start;
}

.publication-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.4;
    margin: 0;
}

.publication-conference {
    color: var(--text-light);
    font-size: 1rem;
    font-style: italic;
    margin: 0;
}

.publication-links {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(125, 211, 252, 0.1);
    transition: all 0.3s ease;
}

.publication-link:hover {
    background: rgba(125, 211, 252, 0.2);
    transform: translateX(2px);
}

.publication-link i {
    font-size: 1rem;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.skill-card {
    background: var(--bg-white);
    padding: 35px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.skill-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 1.8rem;
}

.skill-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.skill-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skill-list li {
    color: var(--text-light);
    font-size: 1rem;
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.5;
}

.skill-list li:before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: var(--bg-white);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-bottom {
    text-align: center;
}

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

/* Responsive styles */
@media (max-width: 768px) {
    .profile-container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .social-links {
        justify-content: center;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .script-heading {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero .social-links {
        flex-direction: column;
        align-items: center;
    }
    
    .bio-image {
        max-width: 300px;
    }
    
    .publications-grid,
    .skills-grid {
        grid-template-columns: 1fr;
    }
}