/* ============================================
   Section Styles
   ============================================ */

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--surface-border);
    padding: var(--space-3) 0;
}

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

.nav-logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo span {
    color: var(--primary-400);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links {
    display: flex;
    gap: var(--space-6);
}

.nav-link {
    position: relative;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle,
.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--surface-glass);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--surface-glass-hover);
    border-color: var(--primary-400);
    color: var(--primary-400);
}

.theme-toggle svg,
.lang-toggle svg {
    width: 20px;
    height: 20px;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

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

/* Animated gradient background */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 60%);
    background-size: 200% 200%;
    animation: morphGradient 20s ease infinite;
    pointer-events: none;
    z-index: 0;
}

/* Dot grid pattern */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(99, 102, 241, 0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-full);
    color: var(--success-500);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-6);
    animation: fadeInDown 0.6s ease 0.2s both;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--success-500);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.5);
}

.hero-title {
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary-400), var(--secondary-400), var(--accent-400));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.hero-subtitle {
    font-size: clamp(var(--text-xl), 3vw, var(--text-2xl));
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    margin-bottom: var(--space-8);
    max-width: 500px;
    animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-stats {
    display: flex;
    gap: var(--space-10);
    animation: fadeInUp 0.8s ease 0.7s both;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    opacity: 0;
    transition: opacity 0.3s ease, width 0.3s ease;
}

.stat-item:hover::after {
    opacity: 1;
    width: 50px;
}

.stat-value {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--primary-400);
    display: block;
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease 0.5s both;
}

.hero-image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

/* Animated glow ring behind image */
.hero-image-wrapper::before {
    content: '';
    position: absolute;
    inset: -15px;
    background: conic-gradient(from 0deg,
            var(--primary-500),
            var(--secondary-500),
            var(--accent-500),
            var(--primary-500));
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: blob 8s ease-in-out infinite, spin 8s linear infinite;
    opacity: 0.6;
    filter: blur(20px);
    z-index: -1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: blob 8s ease-in-out infinite;
    border: 3px solid rgba(99, 102, 241, 0.5);
    box-shadow:
        0 0 40px rgba(99, 102, 241, 0.3),
        inset 0 0 30px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.3s ease;
}

.hero-image:hover {
    box-shadow:
        0 0 60px rgba(99, 102, 241, 0.5),
        inset 0 0 30px rgba(0, 0, 0, 0.2);
}

/* Floating elements - Enhanced */
.hero-float {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    animation: floatRotate 5s ease-in-out infinite;
    box-shadow: var(--shadow-lg), var(--shadow-glow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-float:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-xl), var(--shadow-glow-md);
    border-color: var(--primary-400);
}

.hero-float-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.hero-float-2 {
    bottom: 20%;
    right: -5%;
    animation-delay: 1.5s;
}

.hero-float-3 {
    bottom: 10%;
    left: 5%;
    animation-delay: 3s;
}

.hero-float .icon-wrap {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

.hero-float-text {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.hero-float-text span {
    display: block;
    color: var(--text-tertiary);
    font-size: var(--text-xs);
    font-weight: var(--font-normal);
}

/* Background decoration - Enhanced */
.hero-bg-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: conic-gradient(from 0deg,
            rgba(99, 102, 241, 0.2),
            rgba(139, 92, 246, 0.15),
            rgba(6, 182, 212, 0.1),
            rgba(99, 102, 241, 0.2));
    filter: blur(100px);
    opacity: 0.5;
    border-radius: 50%;
    pointer-events: none;
    animation: spin 30s linear infinite;
}

/* ===== About Section ===== */
.about {
    background: var(--bg-secondary);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.about-content h2 {
    margin-bottom: var(--space-6);
}

.about-text {
    margin-bottom: var(--space-8);
}

.about-text p {
    margin-bottom: var(--space-4);
}

.about-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.info-item .icon-wrap {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.info-item .icon-wrap svg {
    width: 18px;
    height: 18px;
}

.info-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

/* Skills */
.skills-section {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
}

.skills-section h3 {
    margin-bottom: var(--space-6);
    font-size: var(--text-xl);
}

.skills-tabs {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.skill-tab {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-tertiary);
    background: transparent;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.skill-tab:hover,
.skill-tab.active {
    background: var(--primary-500);
    border-color: var(--primary-500);
    color: white;
}

.skills-content {
    display: none;
}

.skills-content.active {
    display: block;
}

.skill-item {
    margin-bottom: var(--space-4);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.skill-name {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
}

.skill-level {
    font-size: var(--text-sm);
    color: var(--primary-400);
}

/* ===== Experience Section ===== */
.experience-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

/* Animated gradient line */
.experience-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg,
            var(--primary-500) 0%,
            var(--secondary-500) 50%,
            var(--accent-500) 100%);
    background-size: 100% 200%;
    animation: gradientShift 5s ease infinite;
    border-radius: var(--radius-full);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

/* Animated glow overlay on line */
.experience-timeline::after {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg,
            rgba(255, 255, 255, 0.3) 0%,
            transparent 50%,
            rgba(255, 255, 255, 0.3) 100%);
    animation: shimmer 3s ease-in-out infinite;
    border-radius: var(--radius-full);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: var(--space-10);
}

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

/* Glowing animated dot */
.timeline-dot {
    position: absolute;
    left: 10px;
    top: 8px;
    width: 22px;
    height: 22px;
    background: var(--bg-primary);
    border: 3px solid var(--primary-500);
    border-radius: var(--radius-full);
    z-index: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Pulse ring animation */
.timeline-dot::before {
    content: '';
    position: absolute;
    inset: -6px;
    border: 2px solid var(--primary-400);
    border-radius: 50%;
    opacity: 0;
    animation: none;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-dot::before {
    opacity: 1;
    animation: pulse 1.5s ease-in-out infinite;
}

.timeline-item:hover .timeline-dot {
    background: var(--primary-500);
    transform: scale(1.2);
    box-shadow:
        0 0 20px rgba(99, 102, 241, 0.6),
        0 0 40px rgba(99, 102, 241, 0.3);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.timeline-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.05) 0%,
            rgba(139, 92, 246, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

/* Left gradient accent edge */
.timeline-content::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    background: linear-gradient(180deg, var(--primary-500), var(--secondary-500));
    opacity: 0.7;
    border-top-left-radius: var(--radius-2xl);
    border-bottom-left-radius: var(--radius-2xl);
}

.timeline-content:hover::before {
    opacity: 1;
}

.timeline-content:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-400);
    transform: translateX(10px) translateY(-4px);
    box-shadow:
        var(--shadow-xl),
        0 0 30px rgba(99, 102, 241, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.timeline-header {
    display: flex;
    gap: var(--space-5);
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

/* Ensure header content takes remaining space */
.timeline-header-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 1;
}

.timeline-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    line-height: 1.3;
}

.timeline-company {
    color: var(--primary-400);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
}

.timeline-meta {
    margin-top: var(--space-2);
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.timeline-date {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    background: var(--surface-glass);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    border: 1px solid var(--surface-border);
}

.timeline-location {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-description {
    list-style: none;
    padding-top: var(--space-4);
    border-top: 1px solid var(--surface-border);
}

.timeline-description li {
    position: relative;
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: 1.7;
}

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

.timeline-description li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary-400);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* Updated Logo Wrapper for better visual hierarchy */
.timeline-logo-wrapper {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--surface-border);
    padding: 8px;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
    position: relative;
}

/* Subtle gradient ring on hover */
.timeline-logo-wrapper::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: linear-gradient(135deg, var(--primary-400), transparent 60%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.timeline-content:hover .timeline-logo-wrapper::after {
    opacity: 1;
}

/* Logo sizing */
.timeline-logo {
    max-width: 100%;
    max-height: 100%;
    height: auto;
}

/* ===== Projects Section ===== */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    max-width: 1000px;
    margin: 0 auto;
    perspective: 1000px;
}

.project-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    transform-style: preserve-3d;
}

@media (min-width: 768px) {
    .project-card {
        flex-direction: row-reverse;
        align-items: stretch;
        min-height: 320px;
    }
}

/* Gradient overlay on hover */
.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.08) 0%,
            rgba(139, 92, 246, 0.08) 50%,
            rgba(6, 182, 212, 0.08) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}

/* Shine sweep effect */
.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.08),
            transparent);
    transform: skewX(-20deg);
    transition: none;
    pointer-events: none;
    z-index: 2;
}

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

.project-card:hover::after {
    animation: shineSweep 0.8s ease forwards;
}

.project-card:hover {
    border-color: var(--primary-400);
    transform: translateY(-12px) rotateX(2deg) rotateY(-1deg);
    box-shadow:
        0 35px 60px -15px rgba(0, 0, 0, 0.35),
        0 0 50px rgba(99, 102, 241, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Animated border on hover */
.project-card:hover {
    animation: borderGlow 3s ease-in-out infinite;
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg,
            var(--primary-600) 0%,
            var(--secondary-600) 50%,
            var(--accent-600) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

@media (min-width: 768px) {
    .project-image {
        width: 45%;
        height: auto;
        flex-shrink: 0;
    }
}

.project-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
            transparent 0%,
            transparent 50%,
            rgba(0, 0, 0, 0.5) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.project-card:hover .project-image::after {
    opacity: 1;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1), filter 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.2) translateY(-5px);
    filter: brightness(1.15) saturate(1.1);
}

/* Project content area */
.project-content {
    position: relative;
    padding: var(--space-6) var(--space-6) var(--space-5);
    z-index: 1;
}

.project-content .badge {
    margin-bottom: var(--space-3);
    font-size: 0.7rem;
    padding: var(--space-1) var(--space-3);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.project-card:hover .project-content .badge {
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.project-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.project-card:hover .project-title {
    color: var(--primary-400);
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.project-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-5);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (min-width: 768px) {
    .project-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding-top: var(--space-4);
    border-top: 1px solid var(--surface-border);
}

.project-tech .tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-400);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: var(--space-1) var(--space-3);
    font-size: 0.75rem;
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
}

.project-card:hover .project-tech .tag {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

/* Project overlay for links */
.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    padding: var(--space-4);
    z-index: 2;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-links {
    display: flex;
    gap: var(--space-3);
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: white;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.project-link:hover {
    background: var(--primary-500);
    border-color: var(--primary-500);
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

/* Education Logo Support */
.education-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

/* ===== Education Section ===== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-6);
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    gap: var(--space-5);
    transition: all var(--transition-base);
}

.education-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-400);
    transform: translateY(-4px);
}

.education-icon {
    flex-shrink: 0;
}

.education-content {
    flex: 1;
}

.education-degree {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.education-school {
    color: var(--primary-400);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
}

.education-date {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-2);
}

.education-gpa {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(34, 197, 94, 0.15);
    color: var(--success-500);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
}

/* ===== Competitive Programming Section ===== */
.competitive-programming {
    background: var(--bg-secondary);
}

.cp-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--surface-glass);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-400);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.cp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.cp-card {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.cp-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-400);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.2);
}

.cp-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.cp-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.cp-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.875rem;
    backdrop-filter: blur(8px);
    z-index: 2;
}

.cp-content {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    flex: 1;
}

.cp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.cp-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin: 0;
    flex: 1;
}

.cp-rank {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.cp-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.cp-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid var(--surface-border);
}

.cp-date {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.cp-date svg {
    width: 16px;
    height: 16px;
}

/* Mobile optimizations for CP cards */
@media (max-width: 768px) {
    .cp-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .cp-image {
        height: 200px;
    }
    
    .cp-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .cp-rank {
        font-size: 1.125rem;
    }
    
    .cp-meta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .cp-meta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stat-card {
        padding: 1rem;
    }
}

/* ===== Awards Section (Legacy - kept for compatibility) ===== */
.awards {
    background: var(--bg-secondary);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.award-card {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
}

.award-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-400);
    transform: translateY(-4px);
}

.award-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-4);
    background: rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-400);
}

.award-icon svg {
    width: 28px;
    height: 28px;
}

.award-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.award-description {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.award-rank {
    display: inline-block;
    margin-top: var(--space-3);
    padding: var(--space-1) var(--space-3);
    background: var(--gradient-primary);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
}

/* ===== Volunteering Section ===== */
.volunteering-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-6);
}

.volunteer-card {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.volunteer-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-400);
    transform: translateY(-4px);
}

.volunteer-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
}

.volunteer-role {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.volunteer-org {
    color: var(--primary-400);
    font-weight: var(--font-medium);
}

.volunteer-date {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    white-space: nowrap;
}

.volunteer-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--bg-secondary);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
}

.contact-info h2 {
    margin-bottom: var(--space-6);
}

.contact-text {
    margin-bottom: var(--space-8);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.contact-item a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--primary-400);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
}

.contact-form h3 {
    margin-bottom: var(--space-6);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--surface-glass);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

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

.form-submit {
    width: 100%;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--surface-border);
    padding: var(--space-12) 0 var(--space-6);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-6);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.footer-logo span {
    color: var(--primary-400);
}

.footer-nav {
    display: flex;
    gap: var(--space-6);
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-400);
}

.footer-bottom {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--surface-border);
    text-align: center;
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* ===== Scroll to Top ===== */
.scroll-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.scroll-top svg {
    width: 24px;
    height: 24px;
}