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

/* Testimonials Section */
.testimonials {
    padding: 120px 0;
}

.testimonials .section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.testimonials-viewport {
    position: relative;
    overflow: hidden;
    width: 100%;
}

.testimonials-track {
    display: flex;
    align-items: stretch;
    gap: 16px;
    will-change: transform;
    padding: 0 2rem;
}

.t-card {
    flex: 0 0 auto;
    width: 380px;
    border: 1px solid var(--border-color, rgba(255,255,255,0.1));
    background: var(--card-bg, rgba(255,255,255,0.03));
    border-radius: 12px;
    padding: 20px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.t-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
}

.t-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.t-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.t-avatar.placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.t-id {
    flex: 1;
    min-width: 0;
}

.t-name {
    color: var(--text-primary, #fff);
    font-weight: 600;
    text-decoration: none;
    display: block;
    margin-bottom: 4px;
}

.t-name:hover {
    text-decoration: underline;
    color: var(--accent-color);
}

.t-role {
    font-size: 0.85rem;
    color: var(--text-secondary, #c7c7c7);
    margin-bottom: 2px;
}

.t-company {
    font-size: 0.85rem;
    color: var(--text-tertiary, #a7a7a7);
    margin-top: 2px;
}

.t-quote {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary, #c7c7c7);
    margin: 16px 0;
    padding: 0;
    border: none;
    font-style: italic;
}

.t-meta {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color, rgba(255,255,255,0.1));
}

.t-meta-line {
    font-size: 0.8rem;
    color: var(--text-tertiary, #a7a7a7);
    margin-bottom: 4px;
    line-height: 1.4;
}

.t-meta-line:last-child {
    margin-bottom: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

/* Interactive Background Canvas */
#interactive-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

/* Theme Toggle */
.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background: var(--hover-bg);
    transform: scale(1.05);
}

/* Mobile Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 1px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    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-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid var(--badge-border);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--shadow-accent);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

/* Hero Visual - Interactive Network */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin: 2rem 0;
}

.hero-network {
    position: relative;
    width: 500px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.connection-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.connection {
    stroke: var(--accent-color);
    stroke-width: 2;
    opacity: 0.6;
    stroke-dasharray: 8 4;
    animation: connection-flow 6s linear infinite;
    filter: drop-shadow(0 0 4px var(--accent-color));
}

.connection-1 { animation-delay: 0s; }
.connection-2 { animation-delay: 0.5s; }
.connection-3 { animation-delay: 1s; }
.connection-4 { animation-delay: 1.5s; }
.connection-5 { animation-delay: 2s; }
.connection-6 { animation-delay: 2.5s; }

@keyframes connection-flow {
    0% { 
        stroke-dashoffset: 0;
        opacity: 0.4;
    }
    50% { 
        opacity: 0.8;
    }
    100% { 
        stroke-dashoffset: -24;
        opacity: 0.4;
    }
}

.network-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
}

.center-node {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--accent-color, #3b82f6), var(--secondary-accent, #8b5cf6));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 0 50px var(--shadow-accent, rgba(59, 130, 246, 0.4)), 0 0 100px rgba(59, 130, 246, 0.3);
    animation: center-glow 3s ease-in-out infinite;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid rgba(255, 255, 255, 0.2);
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto;
}

.center-node:hover {
    transform: scale(1.15);
    box-shadow: 0 0 60px var(--shadow-accent), 0 0 120px rgba(59, 130, 246, 0.5);
    animation-play-state: paused;
}

@keyframes center-glow {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 40px var(--shadow-accent), 0 0 80px rgba(59, 130, 246, 0.3);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 0 60px var(--shadow-accent), 0 0 120px rgba(59, 130, 246, 0.5);
    }
}

.network-node {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--card-bg, rgba(255, 255, 255, 0.1)), rgba(255, 255, 255, 0.05));
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), 0 0 20px var(--accent-color);
    animation: node-float 6s ease-in-out infinite;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto;
}

.network-node:hover {
    transform: scale(1.15);
    border-color: var(--accent-color);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3), 0 0 30px var(--accent-color);
    background: linear-gradient(135deg, var(--hover-bg), rgba(255, 255, 255, 0.1));
    animation-play-state: paused;
}

.network-node::before {
    content: attr(data-skill);
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
}

.network-node:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

@keyframes node-float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-8px) rotate(1deg); }
    50% { transform: translateY(-5px) rotate(0deg); }
    75% { transform: translateY(-12px) rotate(-1deg); }
}

.node-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.node-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.node-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Node Positioning - Stable Organic Layout */
.node-1 { 
    top: 100px; 
    left: 300px; 
    transform: translate(-50%, -50%);
    animation-delay: 0s;
}
.node-2 { 
    top: 150px; 
    left: 400px;
    transform: translate(-50%, -50%);
    animation-delay: 0.5s;
}
.node-3 { 
    top: 350px; 
    left: 380px;
    transform: translate(-50%, -50%);
    animation-delay: 1s;
}
.node-4 { 
    top: 400px; 
    left: 200px;
    transform: translate(-50%, -50%);
    animation-delay: 1.5s;
}
.node-5 { 
    top: 320px; 
    left: 100px;
    transform: translate(-50%, -50%);
    animation-delay: 2s;
}
.node-6 { 
    top: 120px; 
    left: 150px;
    transform: translate(-50%, -50%);
    animation-delay: 2.5s;
}

/* Changing Word Animation */
.changing-word {
    position: relative;
    display: inline-block;
    background: linear-gradient(90deg, var(--accent-gradient-start, #39f), var(--accent-gradient-end, #a0f));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.changing-word::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--accent-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.floating-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
}

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

.card-1 {
    top: 20%;
    left: 0;
    animation: float 6s ease-in-out infinite;
}

.card-2 {
    top: 40%;
    right: 0;
    animation: float 6s ease-in-out infinite 2s;
}

.card-3 {
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    animation: float 6s ease-in-out infinite 4s;
}

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

.card-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card-icon {
    font-size: 2rem;
}

.card-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.section-badge {
    display: inline-block;
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid var(--badge-border);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.view-all-link:hover {
    gap: 0.75rem;
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--section-bg);
}

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

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.expertise-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
}

.expertise-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.expertise-content h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.expertise-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Tech Stack */
.tech-stack {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
}

.tech-category {
    margin-bottom: 2rem;
}

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

.tech-category h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-item {
    background: var(--tech-bg);
    color: var(--tech-text);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--tech-border);
}

/* Projects Section */
.featured-projects {
    padding: 120px 0;
}

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

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.project-card.featured::before {
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-type {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--badge-border);
}

.project-links {
    display: flex;
    gap: 0.5rem;
}

.project-link {
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-link:hover {
    color: var(--accent-color);
    background: var(--hover-bg);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--tech-bg);
    color: var(--tech-text);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--tech-border);
}

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--section-bg);
}

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

.contact-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: grid;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

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

.contact-value:hover {
    color: var(--accent-color);
}

/* Form Styles */
.form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--shadow-accent);
}

/* Footer */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

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

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

/* Page Headers */
.projects-header,
.blog-header {
    padding: 120px 0 80px 0;
    background: var(--section-bg);
    position: relative;
    margin-top: 80px; /* Account for fixed navbar */
}

.projects-hero,
.blog-hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.projects-hero .section-title,
.blog-hero .section-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.projects-description,
.blog-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* Experience Section */
.experience {
    padding: 120px 0;
    background: var(--section-bg);
    position: relative;
}

.experience .container {
    max-width: none;
    padding: 0;
}

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

.timeline-container {
    overflow: hidden;
    position: relative;
    margin-top: 3rem;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
    padding: 2rem 0;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.timeline-track {
    position: relative;
    height: 550px;
    display: flex;
    align-items: center;
    padding-top: 0;
}


.timeline-description li {
    margin-bottom: 0.3rem;
    padding-left: 0.8rem;
    position: relative;
}

.timeline-description li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

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

.timeline-line {
    position: absolute;
    top: 40px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color, #3b82f6), var(--secondary-accent, #8b5cf6));
    z-index: 3;
    visibility: visible;
    opacity: 1;
}

.timeline-items {
    display: flex;
    gap: 4rem;
    animation: scroll-timeline 30s linear infinite;
    width: max-content;
    align-items: flex-start;
}

@keyframes scroll-timeline {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.timeline-item {
    position: relative;
    flex-shrink: 0;
    width: 350px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: var(--accent-color, #3b82f6);
    border-radius: 50%;
    border: 4px solid var(--bg-primary, #0a0a0a);
    box-shadow: 0 0 0 3px var(--accent-color, #3b82f6);
    z-index: 2;
    position: relative;
    margin-bottom: 1rem;
    top: -10px;
    visibility: visible;
    opacity: 1;
}

.timeline-card {
    background: var(--card-bg, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium, 0 8px 32px rgba(0, 0, 0, 0.4));
    transition: all 0.3s ease;
    width: 100%;
    max-width: 320px;
    min-height: 450px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    visibility: visible;
    opacity: 1;
    color: var(--text-primary, #ffffff);
}

.timeline-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--accent-color, #3b82f6);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    visibility: visible;
}

.timeline-role {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary, #ffffff);
    margin-bottom: 0.25rem;
    line-height: 1.3;
    display: block;
    visibility: visible;
}

.timeline-company {
    font-size: 0.95rem;
    color: var(--text-secondary, #a0a0a0);
    font-weight: 500;
    margin-bottom: 1rem;
    display: block;
    visibility: visible;
}

.timeline-description {
    color: var(--text-secondary, #a0a0a0);
    line-height: 1.6;
    font-size: 0.9rem;
    flex-grow: 1;
    visibility: visible;
    margin-top: 0.5rem;
}

/* Pause animation on hover */
.timeline-container:hover .timeline-items {
    animation-play-state: paused;
}

/* Publications Section */
.publications {
    padding: 120px 0;
    background: var(--section-bg);
}

.publications-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.publication-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
}

.publication-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.publication-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.publication-type {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--badge-border);
}

.publication-status {
    background: var(--success-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.publication-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.publication-authors {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-style: italic;
}

.publication-abstract {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.publication-metrics {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.publication-metrics .metric {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.publication-metrics .metric svg {
    color: var(--accent-color);
}

/* Blog Showcase Section */
.blog-showcase {
    padding: 120px 0;
}

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

.blog-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.blog-card.featured::before {
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    border-radius: 16px 16px 0 0;
}

.blog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

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

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

.blog-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.blog-link:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.blog-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.8;
}

.blog-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.blog-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.blog-type {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--badge-border);
}

.blog-status {
    background: var(--success-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.blog-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.blog-metrics {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.blog-metrics .metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.metric-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.blog-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--tech-bg);
    color: var(--tech-text);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--tech-border);
}

/* Blog Preview Section */
.latest-blog {
    padding: 120px 0;
}

.blog-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.blog-preview-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
}

.blog-preview-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.blog-preview-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    flex-wrap: wrap;
}

.blog-date {
    color: var(--text-secondary);
}

.blog-category {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--badge-border);
}

.blog-preview-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.blog-preview-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-preview-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.read-more-link:hover {
    gap: 0.75rem;
}
@media (max-width: 1024px) {
    .hero-container,
    .about-grid,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-visual {
        height: 400px;
        order: -1;
    }
    
    .article-card.featured {
        grid-template-columns: 1fr;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .expertise-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
        padding: 2rem;
        flex-direction: column;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    /* Hide hero-visual on mobile and adjust hero container */
    .hero-visual {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-stats {
        gap: 1rem;
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .section-header {
        margin-bottom: 3rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .about,
    .featured-projects,
    .contact,
    .publications,
    .latest-blog {
        padding: 80px 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .filter-controls {
        gap: 0.5rem;
    }
    
    /* Unify filter button style with .btn (theme button) */
    .filter-btn {
        display: inline-block;
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        font-family: inherit;
        font-weight: 500;
        border: none;
        border-radius: 0.5rem;
        background: var(--btn-bg, var(--accent-color));
        color: var(--btn-color, #fff);
        cursor: pointer;
        transition: background 0.2s, color 0.2s, box-shadow 0.2s;
        box-shadow: 0 1px 2px rgba(0,0,0,0.06);
        outline: none;
    }
    .filter-btn:hover,
    .filter-btn:focus {
        background: var(--btn-hover-bg, var(--accent-color-dark));
        color: var(--btn-hover-color, #fff);
    }
    .filter-btn.active {
        background: var(--btn-active-bg, var(--accent-color-dark));
        color: var(--btn-active-color, #fff);
        box-shadow: 0 2px 6px rgba(0,0,0,0.10);
    }
    
    .project-metrics {
        gap: 1rem;
    }
    
    .posts-grid,
    .blog-preview-grid,
    .publications-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group-inline {
        flex-direction: column;
    }
    
    .projects-showcase,
    .blog-posts,
    .publications,
    .latest-blog {
        padding: 3rem 0 80px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-item {
        padding: 1rem;
    }
    
    /* Experience Timeline Mobile */
    .experience .section-header {
        padding: 0 1rem;
    }
    
    .timeline-container {
        margin-left: calc(-50vw + 50%);
        width: 100vw;
        border-radius: 0;
    }
    
    .timeline-track {
        height: 280px; /* Reduced height for mobile */
        padding-top: 0;
    }
    
    .timeline-line {
        top: 20px; /* Moved up significantly */
        transform: none; /* Remove transform to position at top */
    }
    
    .timeline-item {
        width: 280px;
    }
    
    .timeline-card {
        padding: 1.5rem;
        max-width: 260px;
        min-height: 350px; /* Reduced height for mobile */
    }
    
    .timeline-role {
        font-size: 1rem;
    }
    
    .timeline-company {
        font-size: 0.9rem;
    }
    
    .timeline-description {
        font-size: 0.85rem;
    }
    
    /* Page Headers Mobile */
    .projects-header,
    .blog-header {
        padding: 100px 0 60px 0;
        margin-top: 70px;
    }
    
    .projects-hero .section-title,
    .blog-hero .section-title {
        font-size: 2.5rem;
    }
    
    .projects-description,
    .blog-description {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .experience .section-header {
        padding: 0 1rem;
    }
    
    .timeline-container {
        margin-left: calc(-50vw + 50%);
        width: 100vw;
        border-radius: 0;
        padding: 1rem 0;
    }
    
    /* Page Headers Small Mobile */
    .projects-header,
    .blog-header {
        padding: 80px 0 40px 0;
        margin-top: 60px;
    }
    
    .projects-hero .section-title,
    .blog-hero .section-title {
        font-size: 2rem;
    }
    
    .projects-description,
    .blog-description {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .project-card,
    .form {
        padding: 1.5rem;
    }
    
    /* Experience Timeline Small Mobile */
    .timeline-track {
        height: 300px;
        padding-top: 0;
    }
    
    .timeline-line {
        top: 50%;
        transform: translateY(-50%);
    }
    
    .timeline-item {
        width: 250px;
    }
    
    .timeline-card {
        padding: 1.25rem;
        max-width: 220px;
        height: 250px;
    }
    
    .timeline-role {
        font-size: 0.95rem;
    }
    
    .timeline-company {
        font-size: 0.85rem;
    }
    
    .timeline-description {
        font-size: 0.8rem;
    }
}

/* Enhanced About Section Styles */
.cv-download {
    margin: 2rem 0;
}

.cv-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
    color: white;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-accent);
}

.cv-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-accent);
}

.core-skills {
    margin-top: 2rem;
}

.core-skills h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.skill-item:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-medium);
}

.skill-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.skill-item span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

/* Stats Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Skills & Competencies Section */
.skills-competencies {
    padding: 120px 0;
    background: var(--section-bg);
}

.tech-stack-expanded {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tech-stack-expanded .tech-category {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.tech-stack-expanded .tech-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-color);
}

.tech-stack-expanded .tech-category h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.tech-stack-expanded .tech-category h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

.tech-stack-expanded .tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-stack-expanded .tech-item {
    background: var(--tech-bg);
    color: var(--tech-text);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--tech-border);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.tech-icon {
    font-size: 18px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.tech-logo-emoji {
    font-size: 18px;
    line-height: 1;
    display: inline-block;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.tech-stack-expanded .tech-item:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-accent);
}

.tech-stack-expanded .tech-item:hover .tech-icon {
    transform: scale(1.1);
}

.tech-stack-expanded .tech-item:hover .tech-logo-emoji {
    transform: scale(1.1);
}

/* Education & Certifications Section */
.education-certifications {
    padding: 120px 0;
}

.edu-cert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.education-section h3,
.certifications-section h3 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 2rem;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.education-section h3::after,
.certifications-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-accent));
    border-radius: 2px;
}

/* Education List */
.education-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.education-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.education-item:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-medium);
}

.edu-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.edu-content h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.edu-content p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.edu-year {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.85rem;
}

/* Certifications Grid */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.cert-item:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-medium);
}

.cert-badge {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-accent));
    color: white;
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.5rem;
    border-radius: 8px;
    min-width: 40px;
    text-align: center;
    flex-shrink: 0;
}

.cert-item span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
}


/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .edu-cert-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .tech-stack-expanded {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 0.75rem;
    }
    
    .stats-cards {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.5rem 1rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .tech-stack-expanded {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .tech-stack-expanded .tech-category {
        padding: 1.5rem;
    }
    
    .education-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-item {
        padding: 1rem;
    }
    
    .timeline-card {
        height: 350px;
        padding: 1.25rem;
    }
    
    .skills-competencies,
    .education-certifications {
        padding: 80px 0;
    }
}

/* GitHub Contributions Section */
.github-contributions {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contributions-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    padding: 1rem;
}

.contribution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.contribution-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    transition: all 0.3s ease;
}

.contribution-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.total-contributions,
.longest-streak {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.3s ease;
}

.total-contributions::before {
    content: "📊";
    font-size: 0.9rem;
}

.longest-streak::before {
    content: "🔥";
    font-size: 0.9rem;
}

.contribution-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(53, 1fr);
    gap: 1px;
    padding: 0.5rem;
    background: var(--bg-primary);
    border-radius: 3px;
    overflow-x: auto;
    overflow-y: hidden;
}

.contribution-day {
    width: 11px;
    height: 11px;
    border-radius: 2px;
    background: var(--contribution-bg);
    border: 1px solid var(--contribution-border);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.contribution-day.transitioning {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: scale(1.1);
}

.contribution-day:hover {
    transform: scale(1.3);
    z-index: 10;
    border: 1px solid var(--contribution-hover-border);
}

.contribution-day.level-0 {
    background: var(--contribution-level-0);
}

.contribution-day.level-1 {
    background: var(--contribution-level-1);
}

.contribution-day.level-2 {
    background: var(--contribution-level-2);
}

.contribution-day.level-3 {
    background: var(--contribution-level-3);
}

.contribution-day.level-4 {
    background: var(--contribution-level-4);
}

.contribution-tooltip {
    position: absolute;
    background: var(--tooltip-bg);
    color: var(--tooltip-text);
    padding: 0.4rem 0.6rem;
    border-radius: 3px;
    font-size: 0.7rem;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--tooltip-border);
    z-index: 1000;
    pointer-events: none;
    opacity: 0;
    transform: translateY(-8px);
    transition: all 0.2s ease;
}

.contribution-tooltip.show {
    opacity: 1;
    transform: translateY(-4px);
}

.slideshow-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.slide-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slide-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: scale(1.1);
}

.slide-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.slide-indicators {
    display: flex;
    gap: 0.4rem;
}

.slide-indicators .indicator {
    transition: all 0.3s ease;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--accent-color);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--accent-color);
    opacity: 0.7;
}

/* Loading Animation */
.contribution-grid.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}

.contribution-grid.loading::after {
    content: "";
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


/* Responsive Design */
@media (max-width: 768px) {
    .github-contributions {
        padding: 60px 0;
    }
    
    .contributions-container {
        padding: 0.75rem;
    }
    
    .contribution-header {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .contribution-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .contribution-grid {
        gap: 1px;
        padding: 0.25rem;
    }
    
    .contribution-day {
        width: 9px;
        height: 9px;
    }
    
    .slideshow-controls {
        margin-top: 1rem;
    }
    
    .slide-btn {
        width: 28px;
        height: 28px;
    }
    
    .indicator {
        width: 6px;
        height: 6px;
    }
}

@media (max-width: 480px) {
    .contribution-grid {
        grid-template-columns: repeat(53, 1fr);
        gap: 1px;
    }
    
    .contribution-day {
        width: 7px;
        height: 7px;
    }
    
    .contribution-header h3 {
        font-size: 1.1rem;
    }
    
    .contribution-stats {
        font-size: 0.7rem;
    }
}

/* Blog Filter Styles */
.blog-filter {
    padding: 0 0 60px 0;
    background: var(--section-bg);
}

/* Projects Filter Styles */
.projects-filter {
    padding: 0 0 60px 0;
    background: var(--section-bg);
}

.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    font-size: 1rem;
    font-weight: 500;
    background: var(--btn-bg, #23272f);
    color: var(--btn-color, #b7bdd6);
    border: none;
    outline: none;
    border-radius: 32px;
    cursor: pointer;
    transition: 
        background 0.17s, 
        color 0.17s, 
        box-shadow 0.17s;
    box-shadow: 0 1px 7px 0 rgba(32,36,54,0.08);
    letter-spacing: 0.01em;
}

.filter-btn:not(.active):hover,
.filter-btn:focus-visible {
    background: var(--accent, #2d72e0);
    color: #fff;
}

.filter-btn.active {
    background: var(--accent, #2d72e0) !important;
    color: #fff !important;
    box-shadow: 0 2px 16px 0 rgba(45,114,224,0.17);
}

/* Blog card link styling */
.blog-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.blog-card-link:hover {
    text-decoration: none;
    color: inherit;
}

.blog-card-link:hover .blog-preview-card {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color);
}

/* Remove blue underlined text from blog cards */
.blog-card-link * {
    text-decoration: none !important;
    color: inherit !important;
}

.blog-card-link a {
    text-decoration: none !important;
    color: inherit !important;
}

/* Blog grid layout - exactly 3 cards per row */
.blog-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .blog-preview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
}

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

/* Ensure consistent card heights */
.blog-preview-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-preview-excerpt {
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   ARTICLE PAGE STYLES
   ======================================== */

/* Article Header Styles */
.article-header {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.article-date {
    color: var(--text-secondary);
}

.article-category {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--badge-border);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.article-tags .tag {
    background: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Article Content */
.article-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
    line-height: 1.7;
}

.article-body {
    position: relative;
    z-index: 1;
}

.article-content h1, .article-content h2, .article-content h3, .article-content h4, .article-content h5, .article-content h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5rem;
}

.article-content h3 {
    font-size: 1.5rem;
    color: var(--accent);
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.article-content ul, .article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

.article-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.article-content pre {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-content pre code {
    background: none;
    padding: 0;
}

.article-content a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-bottom 0.3s ease;
}

.article-content a:hover {
    border-bottom: 1px solid var(--accent);
}

.article-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.article-content em {
    font-style: italic;
    color: var(--text-secondary);
}

/* Table of Contents */
.toc {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
}

.toc h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.toc ul {
    list-style: none;
    padding-left: 0;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: var(--accent);
    text-decoration: underline;
    transition: all 0.3s ease;
}

.toc a:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* Author Bio */
.author-bio {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
    border-left: 4px solid var(--accent);
}

.author-bio h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.author-bio p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* References */
.references {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
}

.references h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.references ol {
    counter-reset: reference-counter;
}

.references li {
    counter-increment: reference-counter;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
}

.references li::before {
    content: "[" counter(reference-counter) "]";
    font-weight: bold;
    color: var(--accent);
    margin-right: 0.5rem;
}

/* Footnotes */
.footnotes {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 800px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-medium);
    font-size: 0.9rem;
}

.footnotes h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footnotes ol {
    counter-reset: footnote-counter;
}

.footnotes li {
    counter-increment: footnote-counter;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
}

.footnotes li::before {
    content: "[" counter(footnote-counter) "]";
    font-weight: bold;
    color: var(--accent);
    margin-right: 0.5rem;
}

/* Responsive design for articles */
@media (max-width: 768px) {
    .article-content {
        position: relative;
        max-width: 800px;
        margin: 0 auto;
        padding: 0;
        line-height: 1.7;
    }
    
    .article-content h2 {
        font-size: 1.5rem;
    }
    
    .article-content h3 {
        font-size: 1.3rem;
    }
}