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

:root {
    /* Color Palette */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1a2332;
    
    --accent-primary: #3b82f6;
    --accent-secondary: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.3);
    
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    
    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-primary: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    --section-padding-mobile: 80px;
    
    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

body.loaded {
    animation: fadeIn 0.5s ease;
}

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

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ===================================
   Utility Classes
   =================================== */

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo a {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
    transition: var(--transition-smooth);
}

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

.logo-dot {
    color: var(--accent-primary);
    font-size: 36px;
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    transition: var(--transition-smooth);
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

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

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

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

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

.hero .container {
    position: relative;
    z-index: 100;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

/* Particle Canvas */
#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    top: -15%;
    left: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    bottom: -15%;
    right: -8%;
    animation-delay: 7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    top: 40%;
    right: 15%;
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    33% {
        transform: translate(40px, -40px) scale(1.15) rotate(120deg);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.85) rotate(240deg);
    }
}

/* Wave Animation */
.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave {
    position: relative;
    width: 100%;
    height: 150px;
    animation: waveMove 15s ease-in-out infinite;
}

.wave-path {
    animation: wavePath 8s ease-in-out infinite;
}

@keyframes waveMove {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-25px); }
}

@keyframes wavePath {
    0%, 100% { d: path("M0,160L48,144C96,128,192,96,288,106.7C384,117,480,171,576,176C672,181,768,139,864,122.7C960,107,1056,117,1152,138.7C1248,160,1344,192,1392,208L1440,224L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"); }
    50% { d: path("M0,128L48,138.7C96,149,192,171,288,165.3C384,160,480,128,576,128C672,128,768,160,864,181.3C960,203,1056,213,1152,197.3C1248,181,1344,139,1392,117.3L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"); }
}

/* Geometric Shapes */
.geometric-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    opacity: 0.08;
}

.shape {
    position: absolute;
    animation: shapeFloat 20s infinite ease-in-out;
}

.shape-circle {
    width: 80px;
    height: 80px;
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.shape-square {
    width: 60px;
    height: 60px;
    border: 3px solid var(--accent-secondary);
    top: 60%;
    right: 20%;
    animation-delay: 5s;
    transform: rotate(45deg);
}

.shape-triangle {
    width: 0;
    height: 0;
    border-left: 40px solid transparent;
    border-right: 40px solid transparent;
    border-bottom: 70px solid var(--accent-primary);
    top: 30%;
    right: 10%;
    animation-delay: 10s;
}

.shape-hexagon {
    width: 70px;
    height: 40px;
    background: transparent;
    border-top: 3px solid var(--accent-secondary);
    border-bottom: 3px solid var(--accent-secondary);
    position: absolute;
    top: 70%;
    left: 25%;
    animation-delay: 7s;
}

.shape-hexagon::before,
.shape-hexagon::after {
    content: '';
    position: absolute;
    width: 0;
    border-left: 35px solid transparent;
    border-right: 35px solid transparent;
    left: 0;
}

.shape-hexagon::before {
    bottom: 100%;
    border-bottom: 20px solid var(--accent-secondary);
}

.shape-hexagon::after {
    top: 100%;
    border-top: 20px solid var(--accent-secondary);
}

@keyframes shapeFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.15;
    }
    25% {
        transform: translate(30px, -30px) rotate(90deg);
        opacity: 0.25;
    }
    50% {
        transform: translate(-20px, 20px) rotate(180deg);
        opacity: 0.15;
    }
    75% {
        transform: translate(20px, 30px) rotate(270deg);
        opacity: 0.25;
    }
}

/* Grid Overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 100;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -2px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 24px);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-family: var(--font-mono);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 18px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition-smooth);
    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 ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px var(--accent-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

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

section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.section-background > * {
    position: relative;
    z-index: 1;
}

section > .container {
    position: relative;
    z-index: 100;
}

/* Floating Icons Animation */
.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-icon {
    position: absolute;
    font-size: 48px;
    opacity: 0.05;
    animation: floatIcon 15s infinite ease-in-out;
    filter: blur(1px);
}
/* ===================================
   About Section - Circular Profile Image
   =================================== */

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about .image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.about .image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    display: block;
}

/* Circular Animated Frame */
.about .image-border {
    position: absolute;
    top: -12px;
    left: -12px;
    right: -12px;
    bottom: -12px;
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
    opacity: 0.4;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

/* Subtle Pulse Animation */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.6;
    }
}


@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.5;
    }
}

.image-wrapper {
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}



@keyframes floatIcon {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 0.1;
    }
    25% {
        transform: translate(20px, -30px) rotate(90deg) scale(1.2);
        opacity: 0.15;
    }
    50% {
        transform: translate(-15px, 15px) rotate(180deg) scale(0.9);
        opacity: 0.08;
    }
    75% {
        transform: translate(25px, 20px) rotate(270deg) scale(1.1);
        opacity: 0.12;
    }
}

/* Code Rain Effect */
.code-rain {
    position: absolute;
    width: 100%;
    height: 100%;
}

.code-line {
    position: absolute;
    top: -10%;
    font-family: var(--font-mono);
    font-size: 24px;
    color: var(--accent-primary);
    opacity: 0.08;
    animation: codeRain 12s infinite linear;
}

@keyframes codeRain {
    0% {
        top: -10%;
        opacity: 0;
    }
    10% {
        opacity: 0.08;
    }
    90% {
        opacity: 0.08;
    }
    100% {
        top: 110%;
        opacity: 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    margin: 0 auto;
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: dividerShine 3s infinite;
}

@keyframes dividerShine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-top: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
    align-items: start;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.image-wrapper img {
    width: 100%;
    border-radius: 20px;
    display: block;
}

.image-border {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 3px solid var(--accent-primary);
    border-radius: 24px;
    opacity: 0.3;
    z-index: -1;
}

.about-paragraph {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: 8px;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    align-items: stretch;
}

.skill-category {
    display: flex;
    height: 100%;
}

@media (max-width: 1200px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

.skill-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 320px;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.3), 0 0 60px rgba(59, 130, 246, 0.2);
}

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

.skill-card:hover .skill-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.skill-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 16px;
    margin-bottom: 24px;
    color: white;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.skill-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    flex-shrink: 0;
}

.skill-description {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-shrink: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: auto;
}

.skill-tag {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-secondary);
    transition: var(--transition-smooth);
}

.skill-tag:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Additional Skills Section */
.additional-skills {
    margin-top: 60px;
    text-align: center;
}

.additional-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.learning-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.learning-tag {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 15px;
    font-weight: 600;
    color: #10b981;
    transition: var(--transition-smooth);
}

.learning-tag:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: #10b981;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

/* ===================================
   Projects Section
   =================================== */

.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 80px rgba(59, 130, 246, 0.3);
    border-color: var(--accent-primary);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.project-link {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    border-radius: 50%;
    color: white;
    transition: var(--transition-smooth);
}

.project-link:hover {
    transform: scale(1.1) rotate(45deg);
    background: var(--accent-secondary);
}

.project-content {
    padding: 30px;
}

.project-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.project-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-secondary);
}

.project-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition-smooth);
}

.project-btn:hover {
    gap: 12px;
    color: var(--accent-secondary);
}

/* ===================================
   Education Section
   =================================== */

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
}

.timeline-marker {
    position: absolute;
    left: -50px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border: 4px solid var(--bg-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    transition: var(--transition-smooth);
}

.timeline-content:hover {
    transform: translateX(10px);
    border-color: var(--accent-primary);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
}

.timeline-date {
    display: inline-block;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-secondary);
    margin-bottom: 16px;
    font-family: var(--font-mono);
}

.timeline-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.timeline-institution {
    font-size: 16px;
    font-weight: 500;
    color: var(--accent-primary);
    margin-bottom: 16px;
}

.timeline-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.timeline-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.highlight-tag {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    color: #10b981;
}

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

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-smooth);
}

.contact-card:hover {
    transform: translateX(10px);
    border-color: var(--accent-primary);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
}

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 12px;
    flex-shrink: 0;
    color: white;
}

.contact-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

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

.contact-form-wrapper {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input,
.form-textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 14px 18px;
    font-size: 15px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: var(--transition-smooth);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    padding: 16px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.form-submit::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 ease;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.form-submit:hover::before {
    left: 100%;
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.spinner {
    animation: spin 1s linear infinite;
}

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

.form-message {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

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

.footer {
    background: var(--bg-primary);
    padding: 40px 0;
    border-top: 1px solid var(--glass-border);
}

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

.footer-text {
    color: var(--text-muted);
    font-size: 15px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-3px);
}

/* ===================================
   Scroll to Top Button
   =================================== */

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 30px var(--accent-glow);
}

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

@media (max-width: 968px) {
    :root {
        --section-padding: var(--section-padding-mobile);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        padding: 40px;
        transition: right 0.3s ease;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
    }

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

    .nav-toggle {
        display: flex;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .timeline {
        padding-left: 40px;
    }

    .timeline::before {
        left: 10px;
    }

    .timeline-marker {
        left: -40px;
    }
}

@media (max-width: 640px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

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

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

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===================================
   Loading States & Animations
   =================================== */

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