/* Modern Portfolio CSS - kiranpatil.tech - Optimized */

/* ============================================
   CSS Variables & Reset
   ============================================ */

:root {
    --primary-color: #199cdb;
    --primary-dark: #1580b3;
    --primary-light: #4db3e3;
    --secondary-color: #2c3e50;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --text-lighter: #999999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e5e5e5;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Preloader
   ============================================ */

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.preloader-content p {
    color: var(--text-light);
    font-size: 14px;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo a:hover {
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

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

.nav-link.btn-download {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 25px;
    transition: var(--transition);
}

.nav-link.btn-download::after {
    display: none;
}

.nav-link.btn-download:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

/* Hero Background Optimization */
.hero-background-picture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.hero-background-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transform: translateZ(0); /* GPU acceleration */
    backface-visibility: hidden;
    will-change: transform;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: scroll; /* Changed from fixed for better performance */
    background-repeat: no-repeat;
    z-index: -2;
    will-change: auto; /* Only use when animating */
    transform: translateZ(0); /* GPU acceleration */
    backface-visibility: hidden;
    /* Optimize image loading */
    content-visibility: auto;
    contain-intrinsic-size: 1920px;
    /* Fallback if picture element not supported */
    background-image: url('img/kiran.sunrise.bright.jpg');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(25, 156, 219, 0.9) 0%, rgba(44, 62, 80, 0.85) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 2rem;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Performance Optimizations */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Reduce repaints and improve rendering */
.hero-background,
.hero-background-img,
.hero-overlay,
.timeline-content,
.experience-card,
.navbar,
.hero-content {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
    will-change: transform;
}

/* Optimize hero image loading */
.hero-background-img {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

.hero-background-img.loaded {
    opacity: 1;
}

/* Optimize animations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Content Visibility API for off-screen content */
@media (min-width: 769px) {
    .expertise-section,
    .experience-section,
    .skills-section,
    .portfolio-section,
    .contact-section {
        content-visibility: auto;
        contain-intrinsic-size: 500px;
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    min-height: 2rem;
}

.typing-text {
    display: inline-block;
}

.typing-text::after {
    content: '|';
    animation: blink 1s infinite;
}

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

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.scroll-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
}

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

section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   About Section
   ============================================ */

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

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: start;
}

.about-intro h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.about-intro p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

.about-highlights {
    margin: 2rem 0;
}

.highlight-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.highlight-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.highlight-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.highlight-content p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.95rem;
}

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

.about-image {
    position: sticky;
    top: 100px;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

/* Image Optimization */
img[loading="lazy"] {
    content-visibility: auto;
}

.hero-background,
.image-wrapper img {
    content-visibility: auto;
    contain-intrinsic-size: 800px;
}

.image-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.badge-text {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.badge-subtext {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ============================================
   Expertise Section
   ============================================ */

.expertise-section {
    background: var(--bg-light);
}

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

.expertise-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.expertise-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1.5rem;
}

.expertise-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.expertise-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   Experience Section
   ============================================ */

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

.experience-container {
    position: relative;
}

.experience-timeline-desktop {
    display: block;
}

.experience-cards-mobile {
    display: none;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
}

.timeline-item:first-child {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.timeline-item:first-child .timeline-content {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    min-height: auto !important;
    max-height: none !important;
}

.timeline-item:first-child .timeline-content * {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.timeline-item:first-child .timeline-content p,
.timeline-item:first-child .timeline-content h3,
.timeline-item:first-child .timeline-content h4,
.timeline-item:first-child .timeline-content h5,
.timeline-item:first-child .timeline-content h6 {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.timeline-item:first-child .project-list,
.timeline-item:first-child .project-item {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.timeline-item:first-child .tech-tags {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.timeline-marker {
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 4px solid white;
    box-shadow: 0 0 0 3px var(--primary-color);
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: visible;
    word-wrap: break-word;
    overflow-wrap: break-word;
    min-height: auto;
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.timeline-content h3,
.timeline-content h4,
.timeline-content h5,
.timeline-content h6 {
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.timeline-date {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.current-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tag {
    display: inline-block;
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    transition: var(--transition);
}

.tech-tag:hover {
    background: var(--primary-color);
    color: white;
}

.project-list {
    margin-top: 1rem;
}

.project-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.project-item h6 {
    color: var(--text-dark);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-item p {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
    font-size: 0.95rem;
}

.timeline-content ul {
    margin-top: 0.5rem;
}

.timeline-content ul li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

/* VFS Global Specific Styles */
.vfs-global-item {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.vfs-content {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.projects-heading {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.responsibilities-heading {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.responsibilities-list {
    margin-left: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
    list-style-type: disc;
}

/* ============================================
   Skills Section
   ============================================ */

.skills-section {
    background: var(--bg-light);
}

.skills-category {
    margin-bottom: 4rem;
}

.category-title {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
    text-align: center;
}

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

.skill-category-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.skill-category-card h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.7;
}

.skill-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.skills-bar-grid {
    display: grid;
    gap: 1.5rem;
}

.skill-bar-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.skill-name {
    font-weight: 600;
    color: var(--text-dark);
}

.skill-percentage {
    color: var(--primary-color);
    font-weight: 700;
}

.skill-bar {
    height: 8px;
    background: var(--bg-light);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 4px;
    width: 0;
    transition: width 1s ease-out;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.cert-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.cert-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.cert-card h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.cert-date {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* ============================================
   Portfolio Section
   ============================================ */

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

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 25px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.portfolio-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    opacity: 1;
    transform: scale(1);
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.portfolio-content {
    padding: 2rem;
}

.portfolio-tag {
    display: inline-block;
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.portfolio-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   FAQ Section (AEO Optimization)
   ============================================ */

.faq-section {
    background: var(--bg-white);
    padding: 5rem 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.faq-answer {
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* ============================================
   Credentials Section
   ============================================ */

.credentials-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 5rem 0;
}

.credentials-section .section-tag,
.credentials-section .section-title {
    color: white;
}

.credentials-slider {
    max-width: 800px;
    margin: 0 auto 3rem;
    min-height: 200px;
    position: relative;
}

.credential-slide {
    display: none;
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

.credential-slide.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.credential-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.credential-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    opacity: 0.95;
}

.credentials-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.cred-nav-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.cred-nav-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.cred-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

/* ============================================
   Tech Stack Section
   ============================================ */

.tech-stack-section {
    background: var(--bg-light);
}

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

.tech-stack-category {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.tech-stack-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tech-stack-category h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

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

.tech-item {
    display: inline-block;
    background: var(--bg-light);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.tech-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ============================================
   Contact Section
   ============================================ */

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-details p {
    color: var(--text-light);
    line-height: 1.7;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-social h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-dark);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--secondary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-content p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.footer-quote {
    font-style: italic;
    opacity: 0.8;
}

/* ============================================
   Back to Top Button
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
        gap: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        position: static;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    /* Force VFS Global to display on tablet/mobile */
    .vfs-global-item,
    .vfs-global-item *,
    .vfs-content,
    .vfs-content * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .project-list,
    .vfs-content .project-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .tech-tags {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    /* Experience Section Mobile - Card Layout */
    .experience-timeline-desktop {
        display: none;
    }
    
    .experience-cards-mobile {
        display: block;
    }
    
    .experience-card {
        background: white;
        border-radius: 16px;
        padding: 1.5rem;
        margin-bottom: 1.5rem;
        box-shadow: var(--shadow-sm);
        border-left: 4px solid var(--primary-color);
        transition: var(--transition);
    }
    
    .experience-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    
    .experience-card-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .experience-card-date {
        color: var(--primary-color);
        font-weight: 600;
        font-size: 0.875rem;
        flex-shrink: 0;
    }
    
    .experience-card-title {
        font-size: 1.125rem;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 0.25rem;
        line-height: 1.4;
    }
    
    .experience-card-company {
        font-size: 1rem;
        color: var(--text-light);
        font-weight: 500;
        margin-bottom: 0.75rem;
    }
    
    .experience-card-content {
        color: var(--text-light);
        line-height: 1.7;
        font-size: 0.95rem;
    }
    
    .experience-card-content p {
        margin-bottom: 0.75rem;
    }
    
    .experience-card-content p:last-child {
        margin-bottom: 0;
    }
    
    .experience-card-projects {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .experience-card-projects h5 {
        font-size: 1rem;
        color: var(--primary-color);
        margin-bottom: 0.75rem;
        font-weight: 600;
    }
    
    .experience-card-project {
        background: var(--bg-light);
        padding: 0.875rem;
        border-radius: 8px;
        margin-bottom: 0.75rem;
        border-left: 3px solid var(--primary-color);
    }
    
    .experience-card-project h6 {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-dark);
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }
    
    .experience-card-project p {
        font-size: 0.85rem;
        color: var(--text-light);
        line-height: 1.6;
        margin: 0;
    }
    
    .experience-card-responsibilities {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .experience-card-responsibilities h5 {
        font-size: 1rem;
        color: var(--primary-color);
        margin-bottom: 0.75rem;
        font-weight: 600;
    }
    
    .experience-card-responsibilities ul {
        margin-left: 1.25rem;
        padding-left: 0;
    }
    
    .experience-card-responsibilities li {
        font-size: 0.875rem;
        color: var(--text-light);
        line-height: 1.7;
        margin-bottom: 0.5rem;
    }
    
    .experience-card-tech-tags {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .current-badge-mobile {
        background: var(--primary-color);
        color: white;
        padding: 0.25rem 0.75rem;
        border-radius: 12px;
        font-size: 0.75rem;
        font-weight: 600;
        display: inline-block;
    }
    
    /* Ensure VFS card displays on mobile */
    .vfs-card {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-card * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-card .experience-card-projects,
    .vfs-card .experience-card-project,
    .vfs-card .experience-card-responsibilities,
    .vfs-card .experience-card-tech-tags {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-card .experience-card-tech-tags {
        display: flex !important;
    }
    
    .vfs-card ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-card ul li {
        display: list-item !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-marker {
        left: -0.5rem;
        width: 14px;
        height: 14px;
        border: 3px solid white;
        box-shadow: 0 0 0 2px var(--primary-color);
    }
    
    .timeline-content {
        padding: 1.5rem;
        margin-left: 0;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: visible;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative;
        z-index: 1;
    }
    
    .timeline-item:first-child {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: auto !important;
        min-height: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }
    
    .timeline-item:first-child .timeline-content * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content p,
    .timeline-item:first-child .timeline-content h3,
    .timeline-item:first-child .timeline-content h4,
    .timeline-item:first-child .timeline-content h5,
    .timeline-item:first-child .timeline-content h6 {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .project-list,
    .timeline-item:first-child .project-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .tech-tags {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content ul li {
        display: list-item !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-content:hover {
        transform: none;
    }
    
    .timeline-content h3 {
        font-size: 1.125rem;
        line-height: 1.4;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .timeline-content h4 {
        font-size: 0.95rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .timeline-content h5 {
        font-size: 1rem;
        margin-top: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .timeline-content h6 {
        font-size: 0.9rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .timeline-content p {
        font-size: 0.9rem;
        line-height: 1.6;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .project-list {
        margin-top: 1rem;
        display: block;
        width: 100%;
    }
    
    .project-item {
        padding: 0.875rem;
        margin-bottom: 1.25rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
    }
    
    .project-item h6 {
        font-size: 0.95rem;
        line-height: 1.4;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .project-item p {
        font-size: 0.875rem;
        line-height: 1.6;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .tech-tags {
        gap: 0.375rem;
        margin-top: 0.75rem;
        display: flex;
        flex-wrap: wrap;
        width: 100%;
    }
    
    .tech-tag {
        font-size: 0.7rem;
        padding: 0.3rem 0.7rem;
        display: inline-block;
    }
    
    .timeline-content ul {
        padding-left: 1.25rem;
        margin-top: 0.75rem;
        display: block;
        width: 100%;
        box-sizing: border-box;
    }
    
    .timeline-content ul {
        padding-left: 1.25rem;
        margin-top: 0.75rem;
        display: block;
        width: 100%;
        box-sizing: border-box;
        margin-left: 0 !important;
    }
    
    .timeline-content ul li {
        font-size: 0.875rem;
        line-height: 1.6;
        margin-bottom: 0.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: list-item;
    }
    
    /* Fix inline styles on mobile */
    .timeline-content h5[style],
    .projects-heading,
    .responsibilities-heading {
        font-size: 1rem !important;
        margin-top: 1rem !important;
        margin-bottom: 0.75rem !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-content ul[style],
    .responsibilities-list {
        display: block !important;
        margin-left: 1.25rem !important;
        padding-left: 0 !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    /* VFS Global Mobile Fixes */
    .vfs-global-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .vfs-content * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .project-list,
    .vfs-content .project-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .tech-tags {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content ul li {
        display: list-item !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    /* Timeline Extra Small Mobile Fixes */
    .timeline {
        padding-left: 1.25rem;
    }
    
    .timeline::before {
        left: 6px;
        width: 1.5px;
    }
    
    .timeline-item {
        padding-left: 1.5rem;
        margin-bottom: 1.5rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
    }
    
    .timeline-marker {
        left: -0.375rem;
        width: 12px;
        height: 12px;
        border: 2px solid white;
        box-shadow: 0 0 0 2px var(--primary-color);
    }
    
    .timeline-content {
        padding: 1.25rem;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: visible;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        position: relative;
        z-index: 1;
        height: auto !important;
        min-height: auto !important;
    }
    
    .timeline-item:first-child {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: auto !important;
        min-height: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }
    
    .timeline-item:first-child .timeline-content * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content p,
    .timeline-item:first-child .timeline-content h3,
    .timeline-item:first-child .timeline-content h4,
    .timeline-item:first-child .timeline-content h5,
    .timeline-item:first-child .timeline-content h6 {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .project-list,
    .timeline-item:first-child .project-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .tech-tags {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-item:first-child .timeline-content ul li {
        display: list-item !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-content h3 {
        font-size: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .timeline-content h4 {
        font-size: 0.875rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .timeline-content h5 {
        font-size: 0.95rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .timeline-content h6 {
        font-size: 0.85rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .timeline-content p {
        font-size: 0.875rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .project-list {
        display: block !important;
        width: 100%;
        margin-top: 1rem;
    }
    
    .project-item {
        padding: 0.75rem;
        display: block !important;
        width: 100%;
        box-sizing: border-box;
    }
    
    .project-item h6 {
        font-size: 0.9rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .project-item p {
        font-size: 0.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: block;
    }
    
    .tech-tags {
        display: flex !important;
        flex-wrap: wrap;
        width: 100%;
    }
    
    .tech-tag {
        font-size: 0.65rem;
        padding: 0.25rem 0.6rem;
        display: inline-block;
    }
    
    .timeline-content ul {
        padding-left: 1rem;
        display: block !important;
        width: 100%;
        box-sizing: border-box;
    }
    
    .timeline-content ul {
        padding-left: 1rem;
        display: block !important;
        width: 100%;
        box-sizing: border-box;
        margin-left: 0 !important;
    }
    
    .timeline-content ul li {
        font-size: 0.8rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
        display: list-item;
    }
    
    /* Fix inline styles on small mobile */
    .timeline-content h5[style],
    .projects-heading,
    .responsibilities-heading {
        font-size: 0.95rem !important;
        margin-top: 1rem !important;
        margin-bottom: 0.75rem !important;
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .timeline-content ul[style],
    .responsibilities-list {
        display: block !important;
        margin-left: 1rem !important;
        padding-left: 0 !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    /* VFS Global Small Mobile Fixes */
    .vfs-global-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .vfs-content * {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .project-list,
    .vfs-content .project-item {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content .tech-tags {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content ul {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .vfs-content ul li {
        display: list-item !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .current-badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.6rem;
        display: inline-block;
    }
}