@media (max-width: 700px) {
  body {
    background: url('../images/fractal_backgrounds/fractal-vertical-1.png') top center/contain repeat-y;
    background-attachment: scroll;
    min-height: 100vh;
  }
}
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    background-attachment: fixed;
    min-height: 100vh;
    position: relative;
}

/* Single unified background overlay for all pages */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.01);
    /* backdrop-filter: blur(3px); */
    z-index: -1;
    pointer-events: none;
}

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

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

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-link:hover {
    color: #ffffff;
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 300;
    color: #ffffff;
    margin-bottom: 1rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.7;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-shadow: none;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.hero-image {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.profile-caption {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 3rem;
    color: #ffffff;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: -0.02em;
}

/* About Section */
.about {
    padding: 80px 0;
    position: relative;
}

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

.about-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.about-text a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.about-text a:hover {
    color: #ffffff;
    text-decoration-color: #ffffff;
}

.about-details {
    background: rgba(255, 255, 255, 0.1);
    /* backdrop-filter: blur(20px); */
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.detail-item {
    margin-bottom: 1.5rem;
}

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

.detail-item h3 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.detail-item p {
    font-weight: 500;
    color: #ffffff;
}

/* Projects Section */
.projects {
    padding: 80px 0;
    position: relative;
}

.projects::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.2));
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
/* Ensure project-gif video fills the container and is above the image on hover */
.project-gif {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 2;
    display: none;
    pointer-events: none;
}
.project-card:hover .project-gif {
    display: block !important;
}
.project-card:hover .project-image img {
    opacity: 0;
}
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.2s ease;
}

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

/* Smooth transition for GIF hover effects */
.project-card[data-hover-gif] .project-image {
    position: relative;
}

.project-card[data-hover-gif]:hover .project-image img {
    opacity: 1;
}

/* Invert colors for knot untangling thumbnail and GIF */
.project-image img[src*="torus_thumb"] {
    filter: invert(1);
}

.project-card[data-hover-gif*="torus.gif"]:hover .project-image img {
    filter: invert(1);
}

/* GIF Loading States */
.gif-loading {
    position: relative;
}

.gif-loading .gif-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    z-index: 2;
    animation: pulse 1.5s infinite;
}

.gif-loading .gif-img {
    position: absolute;
    top: 0;
    left: 0;
}

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

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    font-weight: 500;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.project-date {
    font-size: 0.9rem;
    color: #a855f7;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.project-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
    line-height: 1.6;
}

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

.project-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.5);
}

.project-link:hover {
    color: #ffffff;
    text-decoration-color: #ffffff;
    transform: translateY(-1px);
}

/* About Section */
.about {
    padding: 80px 0;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), transparent);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-text a {
    color: #a855f7;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.about-text a:hover {
    color: #c084fc;
}

.about-image {
    text-align: center;
}

.about-img-container {
    display: inline-block;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.about-img-container:hover {
    transform: scale(1.05);
}

.about-img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.about-img-caption {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-style: italic;
}

/* About Page */
.about-page {
    padding: 120px 0 80px 0;
    position: relative;
}

/* About Hero Section */
.about-hero {
    padding: 140px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.about-hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    text-align: center;
}

.about-profile-image {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.about-profile-image:hover {
    transform: scale(1.05);
}

.about-profile-caption {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
    font-size: 0.9rem;
}

.about-text {
    color: white;
}

.about-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.about-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.page-title {
    font-size: 3rem;
    font-weight: 300;
    color: #ffffff;
    margin-bottom: 3rem;
    text-align: center;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

.timeline-section {
    padding: 80px 0;
    position: relative;
}

.nav-link.active {
    color: #a855f7;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    position: relative;
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-shadow: none;
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    padding: 2rem 0;
    background: rgba(0, 0, 0, 0.2);
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .about-hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .about-profile-image {
        width: 250px;
        height: 250px;
    }
    
    .about-title {
        font-size: 2.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .profile-image {
        width: 250px;
        height: 250px;
    }
    
    .about-profile-image {
        width: 200px;
        height: 200px;
    }
    
    .about-title {
        font-size: 2rem;
    }
}

/* Timeline Styles */
.timeline {
    padding: 100px 0;
    position: relative;
}

.timeline-container {
    max-width: 800px;
    margin: 0 auto;
}

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

.timeline-year-title {
    font-size: 2rem;
    font-weight: 600;
    color: #ffffff;
    text-align: center;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1rem;
}

.timeline-entry {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.timeline-entry:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.timeline-content {
    z-index: 2;
}

.timeline-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.timeline-text {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.timeline-text a {
    color: #4A90E2;
    text-decoration: underline;
}

.timeline-text a:hover {
    color: #357ABD;
}

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

.timeline-image {
    max-width: 150px;
    max-height: 150px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Mobile timeline adjustments */
@media (max-width: 768px) {
    .timeline-entry {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .timeline-image {
        max-width: 120px;
        max-height: 120px;
        margin: 1rem auto 0;
    }
}