:root {
    /* Modern Professional Palette */
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --text-color: #1e293b;
    --light-text-color: #64748b;
    --bg-color: #f8fafc;
    --light-bg-color: #ffffff;
    --dark-bg-color: #0f172a;
    --dark-text-color: #f1f5f9;
    --dark-light-text-color: #94a3b8;
    --border-color: #e2e8f0;
    --section-padding: 100px 0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* Dark theme with premium aesthetic */
.dark-theme {
    --primary-color: #60a5fa;
    --secondary-color: #a78bfa;
    --accent-color: #22d3ee;
    --success-color: #34d399;
    --text-color: #f1f5f9;
    --light-text-color: #94a3b8;
    --bg-color: #0f172a;
    --light-bg-color: #1e293b;
    --dark-bg-color: #020617;
    --border-color: #334155;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #0a0a14;
    /* Dark navy background base */
    background-image:
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    transition: var(--transition);
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Space Grotesk', 'JetBrains Mono', monospace;
    letter-spacing: -0.5px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    color: var(--light-text-color);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.divider {
    display: block;
    height: 4px;
    width: 60px;
    background: var(--gradient);
    margin: 16px auto;
    border-radius: 2px;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(59, 130, 246, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* Header/Navigation with glassmorphism */
header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1050px;
    padding: 0 8px;
    z-index: 1000;
    background: transparent;
    border: none;
    box-shadow: none;
}

header .container {
    padding: 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.logo-detached {
    margin-right: auto;
    display: flex;
    align-items: center;
    transform: translateX(-16px);
}

nav {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-shell,
.header-controls {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border-radius: 50px;
    transition: var(--transition);
}

.nav-shell {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 8px 18px;
}

.header-controls {
    flex: 0 0 auto;
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
}

body.menu-open {
    overflow: hidden;
}

body.menu-open header {
    z-index: 1500;
}

.dark-theme .nav-shell,
.dark-theme .header-controls {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

header.scrolled .nav-shell,
header.scrolled .header-controls {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.dark-theme header.scrolled .nav-shell,
.dark-theme header.scrolled .header-controls {
    background: rgba(15, 23, 42, 0.85);
}

.logo img {
    max-height: 58px;
    width: auto;
    display: block;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}


.logo img:hover {
    transform: scale(1.2);
}

/* Logo Toggling Logic */
/* Default (Light Theme) -> Show White Logo (logo_white.png), Hide Dark Logo (logo_dark.png) */
.light-mode-logo {
    display: block !important;
}

.dark-mode-logo {
    display: none !important;
}

/* Dark Theme -> Show Dark Logo (logo_dark.png), Hide White Logo (logo_white.png) */
.dark-theme .light-mode-logo {
    display: none !important;
}

.dark-theme .dark-mode-logo {
    display: block !important;
}

.menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 8px;
}

.menu li {
    position: relative;
}

.menu li a {
    text-decoration: none;
    color: var(--text-color);
    font-family: 'Space Grotesk', 'JetBrains Mono', monospace;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    letter-spacing: -0.5px;
}

.menu li a:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.1) translateY(-2px);
}

.menu li a.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    font-weight: 600;
}

.dark-theme .menu li a:hover,
.dark-theme .menu li a.active {
    background: rgba(255, 255, 255, 0.1);
}

.menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 8px;
}

.menu li {
    display: flex;
    align-items: center;
}

.menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 8px;
}

.menu a i {
    margin-right: 8px;
    font-size: 1rem;
}

.menu a:hover,
.menu a.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.menu-btn {
    display: none;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 1.35rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.menu-btn:hover,
.menu-btn.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.12);
}

.menu-btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

#theme-toggle,
.lang-switch {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.15rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

#theme-toggle:hover,
.lang-switch:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
}

.controls-separator {
    display: inline-block;
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
    margin: 0 8px;
}

/* Hero Section with modern gradient background */
/* Hero Section */
.hero {
    padding-top: 160px;
    padding-bottom: 120px;
    background: transparent;
    position: relative;
    overflow: hidden;
}

/* Particle Canvas Background - Fixed */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

#particle-canvas canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Ensure hero content is above particle canvas */
.hero .container {
    position: relative;
    z-index: 1;
}

.hero .scroll-down {
    z-index: 1;
}


.hero-content {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 64px;
}

.hero-text {
    flex: 1;
    min-width: 400px;
}

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-color);
    line-height: 1.1;
}

.hero-text h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    color: var(--text-color);
}

.typed-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 8px;
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 1.5rem;
    background-color: var(--primary-color);
    margin-left: 4px;
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.hero-text p {
    margin-bottom: 32px;
    font-size: 1.125rem;
    color: var(--light-text-color);
    line-height: 1.8;
    max-width: 580px;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--light-bg-color);
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow);
    font-size: 1.2rem;
}

.social-links a:hover {
    background: var(--gradient);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.5);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 300px;
}

.image-container {
    position: relative;
    width: 380px;
    height: 380px;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 3px solid var(--border-color);
}

.image-container:hover img {
    transform: scale(1.03);
}

.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.scroll-down i {
    font-size: 1.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-20px);
    }

    60% {
        transform: translateY(-10px);
    }
}

/* About Section with enhanced cards */
.about {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 64px;
}

.about-text {
    flex: 6;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 24px;
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1.05rem;
}

.about-text h3 {
    color: var(--primary-color);
    font-size: 1.75rem;
    margin: 32px 0 24px;
}

.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.service-item {
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    padding: 32px;
    border-radius: 20px;
    transition: var(--transition);
}

body:not(.dark-theme) .service-item {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.service-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-item i {
    font-size: 2.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.service-item h4 {
    margin-bottom: 12px;
    font-size: 1.25rem;
    color: var(--text-color);
}

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

.why-work-with-me {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.why-work-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);

    padding: 24px;
    border-radius: 16px;
    transition: var(--transition);
}

body:not(.dark-theme) .why-work-item {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
}

.timeline-content {
    padding: 30px;
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    border-radius: 20px;
    position: relative;
    transition: var(--transition);
}

body:not(.dark-theme) .timeline-content {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
    border-color: var(--primary-color);
}

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

.why-work-item i {
    color: var(--success-color);
    font-size: 1.5rem;
    margin-top: 4px;
}

.why-work-item h4 {
    margin-bottom: 8px;
    color: var(--text-color);
}

.why-work-item p {
    color: var(--light-text-color);
}

/* Glassmorphism Utility */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    border-radius: 20px;
    transition: var(--transition);
}

.dark-theme .glass-card {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

/* Light mode glassmorphism - Darker tint as requested */
body:not(.dark-theme) .glass-card {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.25);
    border-color: var(--primary-color);
}

/* Bento Grid Layout for Skills */
.skills {
    flex: 4;
    min-width: 300px;
}

.skills h3 {
    margin-bottom: 32px;
    text-align: center;
    color: var(--primary-color);
    font-size: 1.75rem;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    padding: 10px;
}

.bento-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

/* Bento Item Sizes */
.span-2x2 {
    grid-column: span 2;
    grid-row: span 2;
}

.span-2x1 {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .hero-text .btn-group {
        justify-content: center;
    }

    .hero-text p,
    .btn-group,
    .social-links {
        justify-content: center;
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
    }

    footer .social-links {
        justify-content: center;
    }

    .span-2x2,
    .span-2x1 {
        grid-column: span 1;
        grid-row: span 1;
    }

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

.bento-item i {
    font-size: 2.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
}

.span-2x2 i {
    font-size: 4rem;
}

.bento-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    z-index: 1;
}

.span-2x2 h4 {
    font-size: 1.5rem;
}

.bento-item:hover i {
    transform: scale(1.1);
}

/* Remove old skill bars CSS */
.skill-categories,
.skill-category,
.skill-item,
.progress-bar,
.progress {
    display: none;
}

/* Experience Section */
/* Experience Section */
.experience {
    background: transparent;
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
    height: calc(100% - 30px);
}

.timeline-item {
    position: relative;
    width: 50%;
    margin-bottom: 110px;
    padding-right: 40px;
    clear: both;
}

.timeline-item:nth-child(even) {
    float: right;
    padding-right: 0;
    padding-left: 40px;
    margin-top: -140px;
}

.timeline-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    right: -25px;
    background-color: var(--light-bg-color);
    border: 4px solid var(--primary-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--light-bg-color);
}

.timeline-item:nth-child(even) .timeline-icon {
    left: -25px;
    right: auto;
}

.timeline-icon::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 4px;
    background-color: var(--primary-color);
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(even) .timeline-icon::after {
    left: auto;
    right: -20px;
}

.timeline-content {
    padding: 8px 12px;
    background-color: var(--light-bg-color);
    position: relative;
    border-radius: 16px;
    box-shadow: var(--shadow);
    height: calc(100% - 8px);
    margin-bottom: 3px;
    border-right: 4px solid var(--primary-color);
}

.timeline-item:nth-child(even) .timeline-content {
    border-right: none;
    border-left: 4px solid var(--primary-color);
}

.timeline-content::after {
    display: none;
}

.timeline-content ul {
    list-style-position: inside;
    color: var(--text-color);
    padding-left: 0;
    margin-top: 2px;
    margin-bottom: 0;
}

.timeline-content ul li {
    margin-bottom: 1px;
    list-style-type: none;
    position: relative;
    padding-left: 20px;
    font-size: 0.9rem;
}

.timeline-content ul li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.timeline-content h3 {
    margin-bottom: 0;
    color: var(--primary-color);
    font-size: 1.05rem;
}

.timeline-content .date {
    display: block;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 0;
    font-size: 0.82rem;
}

.timeline-content .company {
    display: block;
    margin-bottom: 2px;
    font-style: italic;
    color: var(--light-text-color);
    font-size: 0.82rem;
}

/* Education with modern cards */
.education {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.education-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.education-item {
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: var(--transition);
}

body:not(.dark-theme) .education-item {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.education-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.education-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-md);
}

.education-content h3 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 1.2rem;
}

.education-content .institution {
    display: block;
    margin-bottom: 12px;
    color: var(--light-text-color);
}

.education-content .date {
    display: block;
    color: var(--secondary-color);
    font-weight: 600;
}

/* Portfolio with enhanced grid */
.portfolio {
    background: transparent;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
    gap: 12px;
}

.filter-btn {
    padding: 12px 24px;
    background: var(--light-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    color: var(--text-color);
    font-size: 0.95rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

/* Support both .portfolio-item and .portfolio-card (JS uses portfolio-card) */
/* Support both .portfolio-item and .portfolio-card (JS uses portfolio-card) */
.portfolio-item,
.portfolio-card {
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

body:not(.dark-theme) .portfolio-item,
body:not(.dark-theme) .portfolio-card {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

/* Hidden items should not take space but maintain grid */
.portfolio-item.hidden,
.portfolio-card.hidden {
    display: none;
}

.portfolio-item:hover,
.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

/* Portfolio item content (script.js uses .portfolio-info) */
.portfolio-content,
.portfolio-info {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.portfolio-content h3,
.portfolio-info h3 {
    margin-bottom: 12px;
    color: var(--primary-color);
    font-size: 1.35rem;
}

.portfolio-content p,
.portfolio-info p {
    color: var(--light-text-color);
    margin-bottom: auto;
    line-height: 1.7;
    flex-grow: 1;
}

.repo-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--light-text-color);
    margin-top: auto;
}

.repo-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.lang-color {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    padding: 10px 20px;
    border-radius: 8px;
    background: rgba(6, 182, 212, 0.1);
    margin-top: auto;
}

.portfolio-link:hover {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    gap: 12px;
}

/* Contact Section */
.contact {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;

    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    padding: 28px;
    border-radius: 16px;
    transition: var(--transition);
}

body:not(.dark-theme) .contact-item {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.contact-item i {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-top: 4px;
}

.contact-item h3 {
    margin-bottom: 4px;
    color: var(--text-color);
    font-size: 1.15rem;
}

.contact-item p {
    color: var(--light-text-color);
}

.contact-form {
    /* Glassmorphism applied */
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    padding: 40px;
    border-radius: 20px;
    transition: var(--transition);
}
.modal-overlay,
.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1100;
}

.modal-overlay.active,
.menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.notification-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(99, 102, 241, 0.35);
    border-radius: 24px;
    width: min(420px, calc(100% - 48px));
    padding: 32px;
    box-shadow: 0 25px 50px rgba(2, 6, 23, 0.45);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 1300;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    color: var(--dark-text-color);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.notification-modal.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    pointer-events: auto;
}

.notification-icon {
    font-size: 3rem;
    color: var(--success-color);
    margin-bottom: 8px;
}

.notification-modal h3 {
    font-size: 1.4rem;
    color: white;
    margin: 0;
}

.notification-modal p {
    color: var(--dark-light-text-color);
    margin: 0;
    line-height: 1.6;
}

.notification-modal .modal-close {
    margin-top: 8px;
    min-width: 140px;
}

@media (max-width: 576px) {
    .notification-modal {
        padding: 24px;
        gap: 12px;
    }

    .notification-icon {
        font-size: 2.5rem;
    }
}

body:not(.dark-theme) .contact-form {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

.input-group {
    margin-bottom: 24px;
}

.input-group input,
.input-group textarea {
    width: 100%;
    background: var(--light-bg-color);
    border: 1px solid var(--border-color);
    padding: 14px 18px;
    border-radius: 12px;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group textarea {
    height: 150px;
    resize: vertical;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Footer - Compact Modern Design */
footer {
    background: var(--bg-color);
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    text-align: left;
}

.footer-content p {
    color: var(--light-text-color);
    margin: 0;
    font-size: 0.9rem;
}

footer .social-links {
    justify-content: flex-end;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 52px;
    height: 52px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-lg);
    font-size: 1.25rem;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.5);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-text {
        min-width: 100%;
    }

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

    .about-text,
    .skills {
        flex: 100%;
    }

    .timeline::after {
        left: 28px;
        margin-left: 0;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
        margin-bottom: 40px;
    }

    .timeline-item:nth-child(even) {
        float: none;
        padding-left: 70px;
        padding-right: 25px;
        margin-top: 0;
    }

    .timeline-icon {
        left: 8px !important;
        right: auto !important;
    }

    .timeline-icon::after,
    .timeline-item:nth-child(even) .timeline-icon::after {
        left: calc(100% - 4px);
        right: auto;
        width: 22px;
    }

    .timeline-content {
        border-right: none;
        border-left: 4px solid var(--primary-color);
    }

    .timeline-item:nth-child(even) .timeline-content {
        border-left: 4px solid var(--primary-color);
    }
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        max-width: 100%;
        padding: 0 16px;
    }

    .header-inner {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 10px;
    }

    .logo-detached,
    .nav-shell,
    .header-controls {
        flex: 0 0 auto;
        width: auto;
        border-radius: 999px;
        padding: 6px 14px;
    }

    .logo-detached {
        margin-right: 0;
        transform: none;
        justify-content: center;
    }

    .nav-shell {
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
        margin: 0;
        display: contents;
    }

    .header-controls {
        justify-content: center;
        gap: 6px;
        padding: 6px 12px;
    }

    .controls-separator {
        display: none;
    }

    .menu {
        position: fixed;
        top: 50vh;
        left: 50%;
        transform: translate(-50%, -50%) scale(0.9);
        width: min(360px, calc(100% - 40px));
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        background: rgba(255, 255, 255, 0.97);
        border: 1px solid rgba(15, 23, 42, 0.08);
        border-radius: 28px;
        flex-direction: column;
        padding: 32px 26px;
        gap: 12px;
        box-shadow: 0 25px 60px rgba(15, 23, 42, 0.4);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        z-index: 1200;
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .dark-theme .menu {
        background: rgba(15, 23, 42, 0.94);
        border-color: rgba(255, 255, 255, 0.08);
    }

    .menu.active {
        opacity: 1;
        pointer-events: auto;
        transform: translate(-50%, -50%) scale(1);
    }

    .menu li {
        width: 100%;
        margin: 0;
    }

    .menu a {
        width: 100%;
        padding: 14px;
        justify-content: center;
        text-align: center;
        border-radius: 16px;
    }

    .menu-btn {
        display: flex;
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .dark-theme .menu-btn {
        background: rgba(15, 23, 42, 0.6);
        border-color: rgba(255, 255, 255, 0.1);
    }
}