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

/* Page Load Animation - Slide Up from Bottom */
@keyframes slideUpFadeIn {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered animation delays for different elements */
.animate-on-load {
    opacity: 0;
    animation: slideUpFadeIn 0.8s ease-out forwards;
}

.animate-on-load:nth-child(1) { animation-delay: 0.1s; }
.animate-on-load:nth-child(2) { animation-delay: 0.2s; }
.animate-on-load:nth-child(3) { animation-delay: 0.3s; }
.animate-on-load:nth-child(4) { animation-delay: 0.4s; }
.animate-on-load:nth-child(5) { animation-delay: 0.5s; }
.animate-on-load:nth-child(6) { animation-delay: 0.6s; }
.animate-on-load:nth-child(7) { animation-delay: 0.7s; }
.animate-on-load:nth-child(8) { animation-delay: 0.8s; }
.animate-on-load:nth-child(9) { animation-delay: 0.9s; }
.animate-on-load:nth-child(10) { animation-delay: 1.0s; }

/* Specific section delays */
.hero-section { animation-delay: 0.1s; }
.about-section { animation-delay: 0.2s; }
.experience-section { animation-delay: 0.3s; }
.projects-section { animation-delay: 0.4s; }
.skills-section { animation-delay: 0.5s; }
.education-section { animation-delay: 0.6s; }
.certifications-section { animation-delay: 0.7s; }
.achievements-section { animation-delay: 0.8s; }
.blogs-section { animation-delay: 0.9s; }
.publications-section { animation-delay: 1.0s; }
.contact-section { animation-delay: 1.1s; }

/* Navbar animation */
.navbar { animation-delay: 0.05s; }

/* Project cards staggered animation */
.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

/* Skill tags staggered animation */
.skill-tag:nth-child(1) { animation-delay: 0.1s; }
.skill-tag:nth-child(2) { animation-delay: 0.15s; }
.skill-tag:nth-child(3) { animation-delay: 0.2s; }
.skill-tag:nth-child(4) { animation-delay: 0.25s; }
.skill-tag:nth-child(5) { animation-delay: 0.3s; }
.skill-tag:nth-child(6) { animation-delay: 0.35s; }
.skill-tag:nth-child(7) { animation-delay: 0.4s; }
.skill-tag:nth-child(8) { animation-delay: 0.45s; }
.skill-tag:nth-child(9) { animation-delay: 0.5s; }
.skill-tag:nth-child(10) { animation-delay: 0.55s; }
.skill-tag:nth-child(11) { animation-delay: 0.6s; }
.skill-tag:nth-child(12) { animation-delay: 0.65s; }
.skill-tag:nth-child(13) { animation-delay: 0.7s; }
.skill-tag:nth-child(14) { animation-delay: 0.75s; }
.skill-tag:nth-child(15) { animation-delay: 0.8s; }
.skill-tag:nth-child(16) { animation-delay: 0.85s; }
.skill-tag:nth-child(17) { animation-delay: 0.9s; }
.skill-tag:nth-child(18) { animation-delay: 0.95s; }
.skill-tag:nth-child(19) { animation-delay: 1.0s; }
.skill-tag:nth-child(20) { animation-delay: 1.05s; }

/* Contact icons staggered animation */
.contact-icon:nth-child(1) { animation-delay: 0.1s; }
.contact-icon:nth-child(2) { animation-delay: 0.2s; }
.contact-icon:nth-child(3) { animation-delay: 0.3s; }
.contact-icon:nth-child(4) { animation-delay: 0.4s; }
.contact-icon:nth-child(5) { animation-delay: 0.5s; }

/* Achievement items staggered animation */
.achievement-item:nth-child(1) { animation-delay: 0.1s; }
.achievement-item:nth-child(2) { animation-delay: 0.2s; }
.achievement-item:nth-child(3) { animation-delay: 0.3s; }
.achievement-item:nth-child(4) { animation-delay: 0.4s; }
.achievement-item:nth-child(5) { animation-delay: 0.5s; }
.achievement-item:nth-child(6) { animation-delay: 0.6s; }
.achievement-item:nth-child(7) { animation-delay: 0.7s; }
.achievement-item:nth-child(8) { animation-delay: 0.8s; }
.achievement-item:nth-child(9) { animation-delay: 0.9s; }
.achievement-item:nth-child(10) { animation-delay: 1.0s; }

/* Blog cards staggered animation */
.blog-card:nth-child(1) { animation-delay: 0.1s; }
.blog-card:nth-child(2) { animation-delay: 0.2s; }
.blog-card:nth-child(3) { animation-delay: 0.3s; }

/* Publication cards staggered animation */
.publication-card:nth-child(1) { animation-delay: 0.1s; }
.publication-card:nth-child(2) { animation-delay: 0.2s; }
.publication-card:nth-child(3) { animation-delay: 0.3s; }
.publication-card:nth-child(4) { animation-delay: 0.4s; }
.publication-card:nth-child(5) { animation-delay: 0.5s; }
.publication-card:nth-child(6) { animation-delay: 0.6s; }

/* Custom Scrollbar Styling - Thick Amber Theme */
::-webkit-scrollbar {
    width: 16px; /* Increased from 12px for thicker scrollbar */
    height: 16px; /* For horizontal scrollbars */
}

::-webkit-scrollbar-track {
    background: #0f172a; /* Same as page background color */
    border-radius: 8px; /* Slightly larger radius for thicker scrollbar */
}

::-webkit-scrollbar-thumb {
    background: #f59e0b !important; /* Solid amber color with !important */
    border-radius: 8px; /* Slightly larger radius for thicker scrollbar */
    border: none; /* Remove border for full width */
    min-height: 30px; /* Increased minimum thumb height */
    min-width: 16px; /* Ensure minimum thumb width */
}

::-webkit-scrollbar-thumb:hover {
    background: #fbbf24 !important; /* Brighter amber on hover */
}

::-webkit-scrollbar-thumb:active {
    background: #d97706 !important; /* Darker amber when active */
}

/* Additional scrollbar styling for better compatibility */
* {
    scrollbar-width: auto; /* Changed from thin to auto for thicker scrollbar */
    scrollbar-color: #f59e0b #0f172a;
}

/* Firefox scrollbar styling */
html {
    scrollbar-width: auto; /* Changed from thin to auto for thicker scrollbar */
    scrollbar-color: #f59e0b #0f172a; /* Solid amber thumb, page background track */
}

/* Ensure scrollbar is visible */
body {
    overflow-y: scroll; /* Force vertical scrollbar to always show */
}

/* Safari-specific scrollbar styling */
@supports (-webkit-appearance: none) {
    ::-webkit-scrollbar {
        width: 18px; /* Even thicker for Safari */
    }
    
    ::-webkit-scrollbar-thumb {
        background: #f59e0b !important;
        border-radius: 9px;
        min-height: 40px; /* Larger minimum height for Safari */
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .animate-on-load {
        animation: none;
        opacity: 1;
    }
}

html {
    scroll-behavior: smooth;
}

/* Unified Theme Variables */
:root {
    --brand-50: #eff6ff;
    --brand-100: #dbeafe;
    --brand-200: #bfdbfe;
    --brand-300: #93c5fd;
    --brand-400: #60a5fa;
    --brand-500: #3b82f6;
    --brand-600: #2563eb;
    --brand-700: #1d4ed8;
    --brand-800: #1e40af;
    --surface-0: #0f172a;
    --surface-1: #0b1222;
    --text-0: #e2e8f0;
    --text-muted: #94a3b8;
    --border-soft: rgba(96, 165, 250, 0.25);
    --accent-amber-400: #fbbf24;
    --accent-amber-500: #f59e0b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-0);
    background: radial-gradient(1200px 800px at 10% 10%, rgba(59, 130, 246, 0.05), transparent 60%),
                radial-gradient(1000px 700px at 90% 20%, rgba(37, 99, 235, 0.045), transparent 60%),
                linear-gradient(180deg, var(--surface-0) 0%, var(--surface-1) 50%, var(--surface-0) 100%);
    overflow-x: hidden;
    position: relative;
}

/* Full-page animated background layer */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.05), rgba(37, 99, 235, 0.035), rgba(99, 102, 241, 0.05));
    background-size: 100% 300%;
    animation: bgFlow 30s ease-in-out infinite;
    pointer-events: none;
}

/* Soft moving blobs for depth */
body::after {
    content: '';
    position: fixed;
    inset: -20% -10% -20% -10%;
    z-index: -2;
    background:
        radial-gradient(35% 25% at 15% 20%, rgba(59, 130, 246, 0.08), transparent 60%),
        radial-gradient(30% 22% at 80% 15%, rgba(37, 99, 235, 0.08), transparent 60%),
        radial-gradient(28% 20% at 70% 85%, rgba(99, 102, 241, 0.08), transparent 60%),
        linear-gradient(180deg, var(--surface-0) 0%, var(--surface-1) 50%, var(--surface-0) 100%);
    filter: blur(25px);
    transform: translate3d(0,0,0);
    animation: blobDrift 60s ease-in-out infinite;
}

@keyframes bgFlow {
    0% { background-position: 50% 0%; }
    50% { background-position: 50% 100%; }
    100% { background-position: 50% 0%; }
}

@keyframes blobDrift {
    0%   { transform: translateY(0) translateX(0); }
    25%  { transform: translateY(-1%) translateX(0.5%); }
    50%  { transform: translateY(0.75%) translateX(-0.5%); }
    75%  { transform: translateY(-0.5%) translateX(0.25%); }
    100% { transform: translateY(0) translateX(0); }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    body::before,
    body::after {
        animation: none !important;
    }
}

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

/* Scroll Animations */
.animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
}

.animate-on-scroll.animate-in {
    opacity: 1;
    transform: none;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(96, 165, 250, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(96, 165, 250, 0.6);
    }
}

/* Animation Classes */
.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

.animate-slide-in-bottom {
    animation: slideInFromBottom 0.7s ease-out forwards;
}

/* Staggered animations */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* Initial hidden state for scroll animations */
.project-item,
.education-item,
.contact-tile,
.v-timeline-item {
    opacity: 0;
}

/* Ensure skill tags are always visible */
.skill-tag {
    opacity: 1 !important;
}

/* Override for elements that should be visible initially */
.hero-content,
.about-content {
    opacity: 1;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #1e40af;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Container */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* About Layout - Desktop */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem; /* Reduced by 70% from 4rem */
    align-items: center;
    min-height: 30vh; /* Reduced by 70% from 70vh */
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 0.45rem; /* Reduced by 70% from 1.5rem */
}

.greeting {
    font-size: 1.8rem;
    color: #94a3b8;
    font-weight: 400;
    margin: 0;
    margin-bottom: 0.15rem; /* Reduced spacing */
}

.main-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    color: var(--accent-amber-400);
    line-height: 1.1;
}

.tagline {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-style: italic;
    letter-spacing: 0.5px;
}

.about-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.desktop-about-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 1rem;
    display: block; /* Show on desktop by default */
}

.mobile-about-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 1rem;
    display: none; /* Hide on desktop by default */
}

/* Mobile responsive styles for about headings */

.about-description {
    font-size: 1.1rem;
    color: #94a3b8;
    line-height: 1.6;
    margin: 0;
}

.resume-link {
    margin-top: 1rem;
}

.resume-section {
    margin-top: 1rem;
}

/* Desktop and Mobile Resume Button Visibility */
.desktop-resume {
    display: block;
}

.mobile-resume {
    display: none;
}

/* Mobile About Content */
.mobile-about-content {
    display: none;
}

.mobile-about-heading {
    font-size: 1.5rem;
    color: #e2e8f0;
    margin-bottom: 1rem;
    text-align: center;
}

.mobile-about-description {
    color: #94a3b8;
    line-height: 1.6;
    text-align: left;
    margin: 0;
}

.resume-button {
    display: inline-block;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    color: #ffffff;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.3);
    border: none;
    cursor: pointer;
}

.resume-button:hover {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(96, 165, 250, 0.4);
}

.resume-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(96, 165, 250, 0.3);
}

.about-image {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.about-image .tagline {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-muted);
    font-style: italic;
    letter-spacing: 0.5px;
    max-width: 300px;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(15, 23, 42, 0.8);
    z-index: 1002;
    border-bottom: 1px solid rgba(245, 158, 11, 0.2);
}

.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #f59e0b, #fbbf24, #f59e0b);
    width: 0%;
    transition: width 0.1s ease-out;
    position: relative;
    overflow: hidden;
}

.scroll-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Navigation */
.nav-container {
    position: fixed;
    top: 8px; /* a bit more gap under progress bar */
    left: 0;
    right: 0;
    background: transparent; /* keep fully transparent to avoid full-width bar */
    z-index: 1001;
    padding: 0.5rem 0; /* tighter to look like floating */
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: block; /* Ensure it's visible */
}

.nav-container.scrolled {
    top: 8px; /* Stay below progress bar when scrolled */
    background: transparent; /* transparent so only the centered box is visible */
    box-shadow: none;
    z-index: 1001;
}

.nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    max-width: max-content;
    margin: 0 auto;
    padding: 0.6rem 1rem;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(96, 165, 250, 0.25);
    border-radius: 16px; /* rounded rectangle */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35), inset 0 0 0 1px rgba(2, 132, 199, 0.08);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none; /* Hidden by default, shown only on mobile */
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    padding: 0;
    z-index: 1002;
    box-shadow: 0 4px 15px rgba(96, 165, 250, 0.3);
    transition: all 0.3s ease;
    position: fixed;
    top: 1rem;
    right: 1rem;
}

.mobile-menu-btn:hover {
    background: linear-gradient(135deg, #93c5fd, #60a5fa);
    box-shadow: 0 6px 20px rgba(96, 165, 250, 0.4);
    transform: translateY(-2px);
}

.hamburger-line {
    width: 20px;
    height: 3px;
    background: #ffffff;
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translateY(6px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translateY(-6px);
}

/* Mobile Menu Panel */
.mobile-menu-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1001;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-panel.active {
    right: 0;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.mobile-nav-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
    background: rgba(96, 165, 250, 0.1);
    border: 2px solid transparent;
}

.mobile-nav-link:hover {
    background: rgba(96, 165, 250, 0.2);
    border-color: #60a5fa;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(96, 165, 250, 0.3);
}

.mobile-nav-link.active {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    border-color: #60a5fa;
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(96, 165, 250, 0.4);
}

/* Mobile Close Button */
.mobile-close-btn {
    display: none;
    position: fixed;
    top: 1rem;
    right: 1rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    z-index: 1003;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
    transition: all 0.3s ease;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.mobile-close-btn:hover {
    background: linear-gradient(135deg, #f87171, #ef4444);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

.close-line {
    width: 20px;
    height: 3px;
    background: #ffffff;
    border-radius: 3px;
    transition: all 0.3s ease;
    position: absolute;
}

.close-line:nth-child(1) {
    transform: rotate(45deg);
}

.close-line:nth-child(2) {
    transform: rotate(-45deg);
}

/* Mobile Responsive Styles */

/* Extra small devices */
@media (max-width: 480px) {
    .mobile-menu-btn {
        display: flex !important;
        width: 45px !important;
        height: 45px !important;
        top: 0.75rem !important;
        right: 0.75rem !important;
    }
    
    .mobile-close-btn {
        display: flex !important;
        width: 45px !important;
        height: 45px !important;
        top: 0.75rem !important;
        right: 0.75rem !important;
    }
}

.nav-link {
    color: #e2e8f0;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--brand-500);
    background: rgba(var(--brand-500-rgb), 0.08);
    transform: translateY(-2px);
}

.nav-link:focus {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
}

.nav-link.active {
    color: var(--brand-500);
    background: rgba(var(--brand-500-rgb), 0.12);
    border-bottom: 2px solid var(--brand-500);
}

/* Main Content */
main {
    padding-top: 100px; /* Account for navigation and progress bar */
}

/* Section Titles */
section h2 {
    scroll-margin-top: 100px; /* Ensure section titles are visible when navigated to */
}

/* Remove inter-section gradients/curves for seamless transitions */
.about::before, .about::after,
.skills::before, .skills::after,
.experience::before, .experience::after,
.projects::before, .projects::after,
.education::before, .education::after,
.certifications::before, .certifications::after,
.blogs::before, .blogs::after,
.publications::before, .publications::after,
.contact::before, .contact::after {
    content: none !important;
    display: none !important;
    background: none !important;
    height: 0 !important;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    overflow: hidden;
    flex: 1;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
    width: 100%;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #94a3b8;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border-color: #3b82f6;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.4);
    animation: glow 2s infinite;
}

.btn-secondary {
    background: transparent;
    color: #60a5fa;
    border-color: #60a5fa;
}

.btn-secondary:hover {
    background: #60a5fa;
    color: #0f172a;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 25px rgba(96, 165, 250, 0.3);
}

.btn-outline {
    background: transparent;
    color: #e2e8f0;
    border-color: #475569;
}

.btn-outline:hover {
    background: #475569;
    color: white;
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 20px rgba(71, 85, 105, 0.3);
}

/* Sections */
section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-0);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 72px;
    height: 4px;
    margin: 10px auto 0 auto;
    border-radius: 9999px;
    background: linear-gradient(90deg, var(--accent-amber-400), var(--accent-amber-500));
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.35);
}

/* About Section */
.about {
    background: transparent; /* inherit animated body background */
    position: relative;
    padding: 6rem 0 4rem 0;
    overflow: hidden;
    min-height: 100vh;
}

.about::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(30, 41, 59, 0.3) 30%, 
        rgba(30, 41, 59, 0.6) 60%, 
        rgba(30, 41, 59, 0.9) 80%, 
        #1e293b 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(96, 165, 250, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
    align-items: start;
}

.about-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.profile-pic {
    width: 380px;
    height: 460px;
    border-radius: 18px;
    border: none;
    background: rgba(15, 23, 42, 0.5);
    object-fit: cover;
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.35), 0 0 20px rgba(15, 23, 42, 0.2), 0 0 30px rgba(156, 163, 175, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    filter: drop-shadow(0 0 20px rgba(156, 163, 175, 0.3));
}

.profile-pic:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 40px rgba(96, 165, 250, 0.3), 0 0 20px rgba(148, 163, 184, 0.4), 0 0 30px rgba(96, 165, 250, 0.2);
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: #cbd5e1;
    line-height: 1.7;
}

/* Skills Section */
.skills {
    background: transparent;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #1e293b 0%, 
        rgba(30, 41, 59, 0.9) 20%, 
        rgba(30, 41, 59, 0.6) 40%, 
        rgba(30, 41, 59, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.skills::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(51, 65, 85, 0.3) 30%, 
        rgba(51, 65, 85, 0.6) 60%, 
        rgba(51, 65, 85, 0.9) 80%, 
        #334155 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


.skills-grid {
    display: grid;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.skill-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #60a5fa;
    text-align: center;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 0.75rem;
}

.skill-tag {
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* Ensure skills are never hidden by scroll animations */
.skills .skill-category {
    opacity: 1 !important;
    transform: none !important;
}

.skill-category {
    opacity: 1 !important;
    transform: none !important;
}

.skill-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.3), transparent);
    transition: left 0.6s;
}

.skill-tag:hover::before {
    left: 100%;
}

.skill-tag:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
    border-color: rgba(96, 165, 250, 0.5);
}

/* Experience Section */
.experience {
    background: transparent;
    position: relative;
    padding: 4rem 0;
    overflow: hidden;
}

.experience::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #1e293b 0%, 
        rgba(30, 41, 59, 0.9) 20%, 
        rgba(30, 41, 59, 0.6) 40%, 
        rgba(30, 41, 59, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.experience::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(51, 65, 85, 0.3) 30%, 
        rgba(51, 65, 85, 0.6) 60%, 
        rgba(51, 65, 85, 0.9) 80%, 
        #334155 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


/* Vertical Timeline */
.vertical-timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
}

.vertical-timeline::before {
    content: '';
    position: absolute;
    left: 150px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, #60a5fa, #3b82f6);
    border-radius: 2px;
}

.timeline-time {
    position: relative;
    font-size: 1rem;
    font-weight: 600;
    color: #fbbf24;
    text-align: right;
    padding-right: 24px;
    white-space: nowrap;
    /* Ensure the time cell stretches to the row height so the dot centers to card */
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.timeline-time::before {
    content: '';
    position: absolute;
    right: -16px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: #fbbf24;
    border: 4px solid #0f172a;
    border-radius: 50%;
    z-index: 2;
    box-shadow: 0 0 0 4px #60a5fa;
}

.timeline-content {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.timeline-content ul {
    margin: 0.5rem 0 0 1.25rem;
    color: #94a3b8;
}

.timeline-content:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.4);
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #60a5fa;
    margin: 0 0 0.5rem 0;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fbbf24;
    margin: 0 0 1rem 0;
}

.timeline-content p {
    color: #94a3b8;
    line-height: 1.6;
    margin: 0;
}

/* Vertical Timeline */
.v-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 1.75rem;
}

.v-timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(59,130,246,0.5), rgba(59,130,246,0.1));
}

.v-timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.v-timeline-dot {
    position: absolute;
    left: -2px;
    top: 0.4rem;
    width: 14px;
    height: 14px;
    background: #60a5fa;
    border: 3px solid #0f172a;
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.3);
}

.v-timeline-content {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 1rem 1.25rem;
}

.v-timeline-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #60a5fa;
    margin-bottom: 0.25rem;
}

.v-timeline-content p { color: #cbd5e1; }

.v-timeline-meta {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-bottom: 0.25rem;
}

.experience-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.experience-item p {
    color: #cbd5e1;
    line-height: 1.6;
}

/* Projects Section */

.projects {
    background: transparent;
    position: relative;
    padding: 4rem 0;
    overflow: hidden;
}

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #334155 0%, 
        rgba(51, 65, 85, 0.9) 20%, 
        rgba(51, 65, 85, 0.6) 40%, 
        rgba(51, 65, 85, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.projects::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(30, 41, 59, 0.3) 30%, 
        rgba(30, 41, 59, 0.6) 60%, 
        rgba(30, 41, 59, 0.9) 80%, 
        #1e293b 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-item {
    background: rgba(30, 41, 59, 0.5);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.project-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.1), transparent);
    transition: left 0.8s;
}

.project-item:hover::before {
    left: 100%;
}

.project-item:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(96, 165, 250, 0.2);
}

.project-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #f1f5f9;
    margin-bottom: 0.75rem;
}

.project-item p {
    color: #cbd5e1;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

/* Demos Section */
/* Education Section */
.education {
    background: transparent;
    position: relative;
    padding: 4rem 0;
    overflow: hidden;
}

.education::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #334155 0%, 
        rgba(51, 65, 85, 0.9) 20%, 
        rgba(51, 65, 85, 0.6) 40%, 
        rgba(51, 65, 85, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.education::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(30, 41, 59, 0.3) 30%, 
        rgba(30, 41, 59, 0.6) 60%, 
        rgba(30, 41, 59, 0.9) 80%, 
        #1e293b 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


.education-grid {
    display: grid;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.education-item {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.education-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.1), transparent);
    transition: left 0.8s;
}

.education-item:hover::before {
    left: 100%;
}

.education-item:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), 0 0 15px rgba(96, 165, 250, 0.15);
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.education-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #60a5fa;
    margin: 0;
}

.education-period {
    background: rgba(96, 165, 250, 0.1);
    color: #93c5fd;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.education-institution {
    color: #cbd5e1;
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.education-details {
    color: #e2e8f0;
}


.coursework h4 {
    color: #f1f5f9;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.coursework ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.5rem;
}

.coursework li {
    color: #cbd5e1;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    background: rgba(30, 41, 59, 0.3);
    border-radius: 6px;
    border-left: 3px solid #60a5fa;
    transition: all 0.2s ease;
}

.coursework li:hover {
    background: rgba(30, 41, 59, 0.5);
    transform: translateX(4px);
}

/* Certifications Section */
.certifications {
    background: transparent;
    position: relative;
    padding: 4rem 0;
    overflow: hidden;
}

.certifications::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #1e293b 0%, 
        rgba(30, 41, 59, 0.9) 20%, 
        rgba(30, 41, 59, 0.6) 40%, 
        rgba(30, 41, 59, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.certifications::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(51, 65, 85, 0.3) 30%, 
        rgba(51, 65, 85, 0.6) 60%, 
        rgba(51, 65, 85, 0.9) 80%, 
        #334155 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


.cert-carousel-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.cert-carousel {
    overflow: hidden;
    border-radius: 16px;
    background: rgba(30, 41, 59, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(96, 165, 250, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}


.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 1rem 0;
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

.carousel-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.7);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.4);
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

.carousel-indicator.active {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.carousel-indicator:hover {
    background: rgba(96, 165, 250, 0.6);
    transform: scale(1.1);
}


.cert-item {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(245, 158, 11, 0.28);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    opacity: 1;
    height: 100%;
    min-width: 100%;
    flex-shrink: 0;
}

.cert-content h3 {
    color: var(--text-0);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.cert-skills .skill-tag {
    background: linear-gradient(135deg, var(--accent-amber-400), var(--accent-amber-500));
    color: #111827;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(245, 158, 11, 0.35);
}

.cert-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.cert-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(245, 158, 11, 0.15);
}

.cert-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.cert-value {
    color: #e2e8f0;
    font-size: 0.875rem;
    font-weight: 600;
}

.cert-actions {
    margin-top: auto;
}

.cert-link {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(59, 130, 246, 0.35);
}

.cert-link:hover {
    background: linear-gradient(135deg, var(--brand-600), var(--brand-800));
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
    text-decoration: none;
    color: white;
}

.cert-item:hover {
    transform: translateY(-5px);
    border-color: rgba(245, 158, 11, 0.45);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), 0 0 15px rgba(245, 158, 11, 0.18);
}

.cert-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.12), transparent);
    transition: left 0.8s;
}

.cert-item:hover::before {
    left: 100%;
}

.cert-item:hover {
    transform: scale(1.02);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2), 0 0 15px rgba(96, 165, 250, 0.15);
}

.cert-image {
    width: 100%;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(30, 41, 59, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(59, 130, 246, 0.2);
    flex-shrink: 0;
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: rgba(30, 41, 59, 0.5);
}

/* Fallback for missing images */
.cert-image img:not([src]),
.cert-image img[src=""] {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #60a5fa;
    font-size: 0.9rem;
    text-align: center;
    padding: 1rem;
}

.cert-image img:not([src])::before,
.cert-image img[src=""]::before {
    content: "Certificate Image";
    display: block;
}

.cert-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
}

.cert-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #60a5fa;
    margin: 0;
    line-height: 1.3;
}

.cert-content p {
    color: #cbd5e1;
    margin: 0;
    line-height: 1.6;
    font-size: 0.95rem;
    flex: 1;
}

.cert-date {
    font-size: 0.9rem;
    color: #fbbf24;
    font-weight: 600;
    background: rgba(251, 191, 36, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    display: inline-block;
    align-self: flex-start;
}

/* Slideshow specific styles */
.slideshow-container .cert-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease-in-out;
}

.slideshow-container .cert-item.active {
    opacity: 1;
    transform: translateY(0);
}

.slideshow-container .cert-item.fade-out {
    opacity: 0;
    transform: translateY(-20px);
}


/* Removed demos section styles */

/* Contact Section */
.contact {
    background: transparent;
    position: relative;
    padding: 4rem 0;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #334155 0%, 
        rgba(51, 65, 85, 0.9) 20%, 
        rgba(51, 65, 85, 0.6) 40%, 
        rgba(51, 65, 85, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}


/* Contact Icons Grid */
.contact-icons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    max-width: 600px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    color: #94a3b8;
    margin-bottom: 2rem;
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(30, 41, 59, 0.6);
    border: 2px solid rgba(59, 130, 246, 0.25);
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.8s;
}

.contact-icon:hover::before {
    left: 100%;
}

.contact-icon:hover {
    transform: translateY(-4px) scale(1.1);
    border-color: rgba(96, 165, 250, 0.5);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3), 0 0 15px rgba(96, 165, 250, 0.3);
}

.contact-icon:hover .icon-svg {
    color: #60a5fa;
}

.contact-icon:nth-child(2):hover .icon-svg {
    color: #f59e0b;
}

.contact-icon:nth-child(4):hover .icon-svg {
    color: #000000;
}

.contact-icon:nth-child(5):hover .icon-svg {
    color: #FF0000;
}

.icon-svg {
    width: 24px;
    height: 24px;
    color: #f1f5f9;
    z-index: 1;
    position: relative;
}

/* Email Modal */
.email-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.email-modal.active {
    opacity: 1;
    visibility: visible;
}

.email-modal-content {
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 16px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    position: relative;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.email-modal.active .email-modal-content {
    transform: scale(1);
}

.email-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.email-modal-header h3 {
    color: #f1f5f9;
    margin: 0;
    font-size: 1.5rem;
}

.email-modal-close {
    background: none;
    border: none;
    color: #94a3b8;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.email-modal-close:hover {
    color: #f1f5f9;
    background: rgba(59, 130, 246, 0.1);
}

.email-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.email-icon {
    width: 50px;
    height: 50px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.email-icon svg {
    width: 24px;
    height: 24px;
    color: #60a5fa;
}

.email-details h4 {
    color: #f1f5f9;
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.email-address {
    color: #60a5fa;
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0 0 1rem 0;
    font-family: 'Courier New', monospace;
}

.email-note {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    padding: 0.75rem;
    margin: 0 0 1rem 0;
}

.email-note p {
    color: #cbd5e1;
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.4;
}

.email-note strong {
    color: #60a5fa;
}

.copy-email-btn {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.copy-email-btn:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-1px);
}

.copy-email-btn.copied {
    background: linear-gradient(135deg, #10b981, #059669);
}

/* Achievements Section */
.achievements {
    background: transparent;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.achievements::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(var(--brand-500-rgb), 0.05) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.achievements::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 70%, rgba(var(--brand-600-rgb), 0.05) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.achievements .container {
    position: relative;
    z-index: 2;
}

.achievements-timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

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

.achievement-year:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 2rem;
    top: 4rem;
    bottom: -3rem;
    width: 2px;
    background: linear-gradient(180deg, var(--brand-500), transparent);
    opacity: 0.3;
}

.year-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-500);
    margin-bottom: 2rem;
    position: relative;
    padding-left: 3rem;
}

.year-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1.5rem;
    height: 1.5rem;
    background: var(--brand-500);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(var(--brand-500-rgb), 0.2);
}

.achievement-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-left: 3rem;
}

.achievement-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(var(--brand-500-rgb), 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.achievement-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(var(--brand-500-rgb), 0.1), transparent);
    transition: left 0.8s;
}

.achievement-item:hover {
    transform: translateY(-2px);
    border-color: var(--brand-500);
    box-shadow: 0 8px 25px rgba(var(--brand-500-rgb), 0.15);
}

.achievement-item:hover::before {
    left: 100%;
}

.achievement-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--brand-500-rgb), 0.1);
    border-radius: 50%;
    border: 1px solid rgba(var(--brand-500-rgb), 0.2);
}

.achievement-content {
    flex: 1;
}

.achievement-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.achievement-content p {
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.achievement-date {
    display: inline-block;
    background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.achievement-link {
    margin-top: 0.5rem;
}

.achievement-link .btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .achievements {
        padding: 3rem 0;
    }
    
    .achievement-year {
        margin-bottom: 2rem;
    }
    
    .achievement-year:not(:last-child)::after {
        left: 1.5rem;
    }
    
    .year-title {
        font-size: 1.5rem;
        padding-left: 2.5rem;
    }
    
    .year-title::before {
        width: 1.25rem;
        height: 1.25rem;
        box-shadow: 0 0 0 3px rgba(var(--brand-500-rgb), 0.2);
    }
    
    .achievement-items {
        margin-left: 2.5rem;
        gap: 1rem;
    }
    
    .achievement-item {
        padding: 1rem;
        gap: 1rem;
    }
    
    .achievement-icon {
        font-size: 1.5rem;
        width: 2.5rem;
        height: 2.5rem;
    }
    
    .achievement-content h4 {
        font-size: 1.125rem;
    }
}

/* Blogs Section */
.blogs {
    padding: 4rem 0;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.blogs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #334155 0%, 
        rgba(51, 65, 85, 0.9) 20%, 
        rgba(51, 65, 85, 0.6) 40%, 
        rgba(51, 65, 85, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.blogs::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(30, 41, 59, 0.3) 30%, 
        rgba(30, 41, 59, 0.6) 60%, 
        rgba(30, 41, 59, 0.9) 80%, 
        #1e293b 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


/* Publications Section */
.publications {
    padding: 4rem 0;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.publications::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        #1e293b 0%, 
        rgba(30, 41, 59, 0.9) 20%, 
        rgba(30, 41, 59, 0.6) 40%, 
        rgba(30, 41, 59, 0.3) 70%, 
        transparent 100%
    );
    clip-path: ellipse(100% 100% at 50% 0%);
    z-index: 1;
}

.publications::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(51, 65, 85, 0.3) 30%, 
        rgba(51, 65, 85, 0.6) 60%, 
        rgba(51, 65, 85, 0.9) 80%, 
        #334155 100%
    );
    clip-path: ellipse(100% 100% at 50% 100%);
    z-index: 1;
}


.publications-intro {
    text-align: center;
    color: #94a3b8;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.publication-item {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.publication-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.1), transparent);
    transition: left 0.8s;
}

.publication-item:hover::before {
    left: 100%;
}

.publication-item:hover {
    transform: translateY(-4px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2), 0 0 20px rgba(96, 165, 250, 0.15);
}

.publication-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.publication-date {
    background: rgba(96, 165, 250, 0.1);
    color: #60a5fa;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
}

.publication-venue {
    background: rgba(251, 191, 36, 0.1);
    color: #fbbf24;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 600;
}

.publication-item h3 {
    color: #e2e8f0;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.publication-item p {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blogs-intro {
    text-align: center;
    color: #94a3b8;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.blog-item {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.blog-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6, #06b6d4);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.blog-item:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.blog-item:hover::before {
    opacity: 1;
}

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

.blog-date {
    color: #60a5fa;
    font-weight: 500;
}

.blog-category {
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.blog-item h3 {
    color: #f1f5f9;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    line-height: 1.4;
}

.blog-item p {
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #2563eb, #1e40af);
}

.back-to-top:focus {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
}

/* Footer */
footer {
    background: #1e293b;
    padding: 1rem 0;
    text-align: center;
    border-top: 1px solid rgba(59, 130, 246, 0.2);
    margin-top: 2rem;
}

footer p {
    color: #94a3b8;
    margin: 0;
    font-size: 0.875rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
        max-width: 100%;
    }
    
    .nav-container {
        display: none;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        backdrop-filter: blur(10px);
        opacity: 0;
        transform: translateX(-20px);
    }
    
    .nav-links.active {
        left: 0;
        opacity: 1;
        transform: translateX(0);
    }
    
    .nav-link {
        font-size: 1.2rem;
        padding: 1rem 2rem;
        color: #e2e8f0;
        text-decoration: none;
        transition: all 0.3s ease;
        opacity: 0;
        transform: translateY(20px);
    }
    
    .nav-links.active .nav-link {
        opacity: 1;
        transform: translateY(0);
    }
    
    .nav-links.active .nav-link:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active .nav-link:nth-child(2) { transition-delay: 0.2s; }
    .nav-links.active .nav-link:nth-child(3) { transition-delay: 0.3s; }
    .nav-links.active .nav-link:nth-child(4) { transition-delay: 0.4s; }
    .nav-links.active .nav-link:nth-child(5) { transition-delay: 0.5s; }
    .nav-links.active .nav-link:nth-child(6) { transition-delay: 0.6s; }
    .nav-links.active .nav-link:nth-child(7) { transition-delay: 0.7s; }
    .nav-links.active .nav-link:nth-child(8) { transition-delay: 0.8s; }
    .nav-links.active .nav-link:nth-child(9) { transition-delay: 0.9s; }
    
    .nav-link:hover {
        color: var(--brand-500);
        transform: translateY(-2px);
    }
    
    .mobile-menu-btn {
        display: flex !important; /* Show hamburger menu on mobile */
        position: fixed !important;
        top: 1rem !important;
        right: 1rem !important;
        z-index: 1002 !important;
    }
    
    .mobile-menu-btn.active {
        display: flex !important; /* Keep showing when active */
    }
    
    .mobile-close-btn {
        display: flex !important;
        position: fixed !important;
        top: 1rem !important;
        right: 1rem !important;
        z-index: 1003 !important;
    }
    
    .mobile-menu-panel {
        display: flex !important;
    }
    
    .main {
        padding-top: 0;
        margin-top: -2rem; /* Pull content up closer to top */
    }
    
    .section h2 {
        scroll-margin-top: 20px;
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    /* About Section - Mobile Layout */
    .about-layout {
        display: flex;
        flex-direction: column;
        gap: 0.6rem; /* Reduced by 70% from 2rem */
        text-align: center;
        padding: 0.18rem 0; /* Reduced by 70% from 0.6rem (now 0.18rem) */
    }
    
    .about-text {
        padding: 0 1rem;
        order: 1;
        margin-top: -1rem; /* Pull text up closer to top */
    }
    
    .about-text .about-description {
        display: none;
    }
    
    .about-image {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        order: 2;
        margin-bottom: 2rem; /* Add space below profile picture */
        gap: 1.5rem;
    }
    
    .about-image .tagline {
        font-size: 0.95rem;
        max-width: 250px;
    }
    
    .mobile-about-content {
        display: block;
        padding: 0 1rem;
        order: 3;
    }
    
    .resume-section {
        margin-top: 0;
        order: 4;
    }
    
    /* Mobile Resume Button Visibility */
    .desktop-resume {
        display: none;
    }
    
    .mobile-resume {
        display: block;
    }
    
    .greeting {
        font-size: 1.6rem;
        margin-bottom: 0.5rem;
        color: #94a3b8;
    }
    
    .main-title {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-bottom: 0.5rem;
        background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    
    .tagline {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .about-heading {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }
    
    .desktop-about-heading {
        display: none; /* Hide desktop version on mobile */
    }
    
    .mobile-about-heading {
        display: block; /* Show mobile version on mobile */
        font-size: 1.5rem;
        margin-bottom: 1rem;
        color: #e2e8f0;
    }
    
    .about-description {
        font-size: 0.95rem;
        line-height: 1.6;
        color: #94a3b8;
        margin-bottom: 1.5rem;
        text-align: left;
        max-width: 100%;
    }
    
    .resume-button {
        font-size: 0.9rem;
        padding: 0.8rem 1.5rem;
        align-self: flex-start;
    }
    
    .profile-pic {
        width: 280px;
        height: 340px;
        border-radius: 16px;
        border: none;
        box-shadow: 0 8px 32px rgba(15, 23, 42, 0.3);
    }
    
    /* Timeline - Mobile */
    .vertical-timeline {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .vertical-timeline::before {
        left: 15px;
    }
    
    .timeline-time::before {
        left: 3px;
        right: auto;
    }
    
    .timeline-time {
        text-align: left;
        padding-left: 2rem;
        margin-top: 0;
        font-size: 0.85rem;
        font-weight: 600;
    }
    
    .timeline-content {
        margin-left: 2rem;
        padding: 1.5rem;
    }
    
    .timeline-content h3 {
        font-size: 1.1rem;
    }
    
    .timeline-content h4 {
        font-size: 0.95rem;
    }
    
    .timeline-content p {
        font-size: 0.9rem;
    }
    
    /* Projects Grid - Tablet */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .project-item {
        padding: 1.5rem;
    }
    
    .project-item h3 {
        font-size: 1.2rem;
    }
    
    .project-item p {
        font-size: 0.9rem;
    }
}

/* Tablet Responsive */
@media (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    /* Projects Grid - Mobile */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-item {
        padding: 1.5rem;
    }
    
    .project-item h3 {
        font-size: 1.2rem;
    }
    
    .project-item p {
        font-size: 0.9rem;
    }
    
    /* Skills Grid - Mobile */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
    
    .skill-category h3 {
        font-size: 1.1rem;
    }
    
    .skill-tags {
        gap: 0.5rem;
    }
    
    .skill-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    /* Education Grid - Mobile */
    .education-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .education-item {
        padding: 1.5rem;
    }
    
    .education-item h3 {
        font-size: 1.2rem;
    }
    
    .education-item h4 {
        font-size: 1rem;
    }
    
    .coursework ul {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .coursework li {
        font-size: 0.85rem;
    }
    
    /* Certifications - Mobile */
    .cert-carousel-wrapper {
        max-width: 100%;
        margin: 0 auto;
        padding: 0 1rem;
        overflow: hidden;
    }
    
    .cert-carousel {
        border-radius: 12px;
    }
    
    .carousel-container {
        border-radius: 12px;
        overflow: hidden;
    }
    
    .carousel-track {
        display: flex;
        transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .cert-item {
        padding: 1.25rem;
        margin: 0;
        min-width: 100%;
        width: 100%;
        flex-shrink: 0;
        box-sizing: border-box;
    }
    
    .cert-content h3 {
        font-size: 1.1rem;
        line-height: 1.3;
        margin-bottom: 0.75rem;
    }
    
    .cert-skills {
        gap: 0.4rem;
        margin-bottom: 0.75rem;
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .cert-skills .skill-tag {
        font-size: 0.75rem;
        padding: 0.2rem 0.6rem;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .cert-details {
        gap: 0.5rem;
    }
    
    .cert-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
        width: 100%;
        overflow: hidden;
    }
    
    .cert-label {
        font-size: 0.8rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        width: 100%;
    }
    
    .cert-value {
        font-size: 0.8rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        width: 100%;
    }
    
    .cert-link {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
        width: 100%;
        justify-content: center;
    }
    
    .carousel-indicators {
        gap: 0.4rem;
        margin-top: 1rem;
        flex-wrap: wrap;
    }
    
    .carousel-indicator {
        width: 16px;
        height: 16px;
    }
    
    .carousel-indicator.active {
        transform: scale(1.1);
    }
    
    /* Blogs Grid - Mobile */
    .blogs-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .blog-item {
        padding: 1.5rem;
    }
    
    .blog-item h3 {
        font-size: 1.1rem;
    }
    
    .blog-item p {
        font-size: 0.9rem;
    }
    
    /* Publications Grid - Mobile */
    .publications-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .publication-item {
        padding: 1.5rem;
    }
    
    .publication-item h3 {
        font-size: 1.1rem;
    }
    
    .publication-item p {
        font-size: 0.9rem;
    }
    
    /* Contact Icons - Mobile */
    .contact-icons {
        gap: 1.5rem;
        max-width: 400px;
    }
    
    .contact-icon {
        width: 60px;
        height: 60px;
        border-radius: 12px;
    }
    
    .icon-svg {
        width: 20px;
        height: 20px;
    }
    
    /* Back to Top Button - Mobile */
    .back-to-top {
        right: 1rem;
        bottom: 1rem;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    
    .publications-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .publication-item {
        padding: 1.5rem;
    }
    
    .publication-item h3 {
        font-size: 1.3rem;
    }
}

/* Extra Small Mobile Screens */
@media (max-width: 480px) {
    .cert-item {
        padding: 1rem;
        margin: 0;
        min-width: 100%;
        width: 100%;
        box-sizing: border-box;
    }
    
    .cert-content h3 {
        font-size: 1rem;
        line-height: 1.2;
    }
    
    .cert-skills .skill-tag {
        font-size: 0.7rem;
        padding: 0.15rem 0.5rem;
    }
    
    .cert-info {
        gap: 0.2rem;
    }
    
    .cert-label,
    .cert-value {
        font-size: 0.75rem;
    }
    
    .cert-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .carousel-indicator {
        width: 14px;
        height: 14px;
    }
    
    .carousel-indicators {
        gap: 0.3rem;
    }
}

@media (min-width: 768px) {
    .about-grid { grid-template-columns: 180px 1fr; }
    .contact-icons { 
        gap: 2.5rem;
        max-width: 700px;
    }
    
    .contact-icon {
        width: 90px;
        height: 90px;
        border-radius: 18px;
    }
    
    .icon-svg {
        width: 28px;
        height: 28px;
    }

    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .demos-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1.75rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-animation {
        display: none;
    }
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 2px solid #60a5fa;
    outline-offset: 2px;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #60a5fa;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 0.6rem; /* Reduced by 70% from 2rem */
        text-align: center;
    }

    .about-text {
        order: 1;
    }

    .about-image {
        order: 2;
        margin-bottom: 2rem; /* Add space below profile picture */
    }

    .mobile-about-content {
        order: 3;
    }

    .resume-section {
        order: 4;
    }

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

    .greeting {
        font-size: 1.6rem;
    }

    .about-heading {
        font-size: 1.2rem;
    }

    .about-description {
        font-size: 1rem;
    }

        .profile-pic {
            width: 300px;
            height: 360px;
        }

    /* Timeline Mobile */
    .vertical-timeline {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .vertical-timeline::before {
        left: 15px;
    }

    .timeline-time {
        text-align: left;
        padding-left: 2rem;
        padding-right: 0;
        margin-top: 0;
        font-size: 0.9rem;
        width: auto;
    }

    .timeline-time::before {
        left: 3px;
        right: auto;
    }

    .timeline-content {
        margin-left: 2rem;
    }

    .nav-links {
        gap: 0.8rem;
        padding: 0 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }

    main {
        padding-top: 80px; /* Account for mobile nav and progress bar */
    }

    section h2 {
        scroll-margin-top: 80px; /* Adjusted for mobile */
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .notebook-spine {
        display: none;
    }
}