/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec4899;
    --accent-color: #14b8a6;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-surface: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;
    
    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

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

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

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Language Toggle
   =================================== */
.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 5px;
    background: var(--dark-card);
    padding: 5px;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
}

.lang-btn {
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition-base);
}

.lang-btn:hover {
    color: var(--text-primary);
}

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

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    z-index: 999;
    padding: 20px 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    padding: 15px 0;
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition-base);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--section-padding);
    padding-top: 120px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-base);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
}

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

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

.hero-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--dark-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-base);
    border: 1px solid var(--border-color);
}

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

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

.profile-card {
    position: relative;
    width: 350px;
    height: 350px;
}

.profile-image-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.2;
    animation: pulse 3s ease-in-out infinite;
}

.profile-icon {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--dark-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: var(--primary-color);
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.3;
    }
}

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

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* ===================================
   Section Styling
   =================================== */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 15px;
}

.section-line {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--dark-card);
}

.about-info h3 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    color: var(--primary-light);
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.highlight-card {
    background: var(--dark-bg);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

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

.highlight-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.highlight-card h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.highlight-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--dark-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item span {
    color: var(--text-secondary);
}

/* ===================================
   Skills Section
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.skill-category {
    background: var(--dark-card);
    padding: 35px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.skill-category h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.skill-category i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

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

.skill-tag {
    padding: 8px 16px;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* ===================================
   Experience Section - Timeline
   =================================== */
.experience {
    background: var(--dark-card);
    position: relative;
    overflow: hidden;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 0;
}

/* Vertical Timeline Line */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, 
        transparent 0%,
        var(--primary-color) 10%,
        var(--secondary-color) 90%,
        transparent 100%
    );
    transform: translateX(-50%);
}

/* Timeline Item */
.timeline-item {
    position: relative;
    display: flex;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

/* Left Timeline Items */
.timeline-left {
    justify-content: flex-end;
    padding-right: calc(50% + 40px);
}

.timeline-left .timeline-content {
    text-align: right;
}

/* Right Timeline Items */
.timeline-right {
    justify-content: flex-start;
    padding-left: calc(50% + 40px);
}

.timeline-right .timeline-content {
    text-align: left;
}

/* Center Timeline Items (Current Focus) */
.timeline-center {
    justify-content: center;
    padding: 0 40px;
}

.timeline-center .timeline-content {
    text-align: center;
    max-width: 600px;
}

/* Timeline Dot */
.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--dark-bg);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition-base);
}

.timeline-dot i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.timeline-item:hover .timeline-dot {
    transform: translateX(-50%) scale(1.15);
    background: var(--primary-color);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
}

.timeline-item:hover .timeline-dot i {
    color: white;
}

/* Pulsing Dot for Current Focus */
.timeline-dot-pulse {
    animation: pulse 2s infinite;
    border-color: var(--secondary-color);
    background: var(--secondary-color);
}

.timeline-dot-pulse i {
    color: white;
}

/* Timeline Content */
.timeline-content {
    background: var(--dark-bg);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    max-width: 450px;
    width: 100%;
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.timeline-current {
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.1) 0%, 
        rgba(236, 72, 153, 0.1) 100%
    );
    border-color: var(--secondary-color);
}

.timeline-date {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    color: var(--primary-light);
    margin-bottom: 15px;
    font-weight: 500;
}

.timeline-list {
    list-style: none;
    margin: 20px 0;
}

.timeline-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-left .timeline-list li {
    padding-left: 0;
    padding-right: 25px;
}

.timeline-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.timeline-left .timeline-list li::before {
    left: auto;
    right: 0;
    content: '◂';
}

.timeline-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.timeline-left .timeline-technologies {
    justify-content: flex-end;
}

.timeline-center .timeline-technologies {
    justify-content: center;
}

.tech-tag {
    padding: 6px 14px;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: var(--transition-base);
}

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

/* ===================================
   Skills Section
   =================================== */
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.05);
}

/* ===================================
   Portfolio Preview Section
   =================================== */
.portfolio-preview {
    background: var(--dark-bg);
}

.portfolio-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.portfolio-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.featured-project {
    position: relative;
    background: var(--dark-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    cursor: pointer;
}

.featured-project:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.featured-project .project-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.featured-project .project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

.project-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 6px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
}

.featured-project h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: 20px;
    margin-bottom: 10px;
}

.featured-project p {
    color: var(--text-muted);
    margin: 0 20px 20px;
    font-size: 0.95rem;
}

.portfolio-cta {
    text-align: center;
    margin-top: 50px;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-large i {
    transition: var(--transition-base);
}

.btn-large:hover i {
    transform: translateX(5px);
}

/* ===================================
   Portfolio Full Page
   =================================== */
.portfolio-hero {
    padding: 150px 0 80px;
    background: var(--dark-card);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.portfolio-hero-content {
    position: relative;
    z-index: 1;
}

.portfolio-hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 20px;
}

.portfolio-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.portfolio-section {
    padding: 80px 0;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 28px;
    background: var(--dark-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-base);
    cursor: pointer;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
}

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

.portfolio-back {
    text-align: center;
    margin-top: 60px;
}

/* Portfolio Item Animation for Filtering */
.portfolio-item.hide {
    display: none;
}

.portfolio-item.show {
    animation: fadeInUp 0.5s ease-out;
}

/* ===================================
   Portfolio Section (Full Page)
   =================================== */
.portfolio {
    background: var(--dark-card);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 35px;
}

.portfolio-item {
    background: var(--dark-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

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

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: var(--dark-surface);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark-surface) 0%, var(--dark-card) 100%);
}

.portfolio-placeholder i {
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(99, 102, 241, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
    padding: 20px;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: white;
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.portfolio-links {
    display: flex;
    gap: 15px;
}

.portfolio-link {
    width: 45px;
    height: 45px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition-base);
}

.portfolio-link:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.portfolio-info {
    padding: 25px;
}

.portfolio-info h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.portfolio-tech {
    color: var(--primary-light);
    font-size: 0.875rem;
    margin-bottom: 12px;
    font-weight: 500;
}

.portfolio-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===================================
   GitHub Activity Section
   =================================== */
.github-activity {
    background: var(--dark-bg);
    position: relative;
}

.github-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.stat-card {
    background: var(--dark-card);
    padding: 30px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-base);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* GitHub Repos Section */
.github-repos-section {
    margin-top: 50px;
}

.subsection-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
    text-align: center;
}

/* Loading State */
.github-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 20px;
}

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

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

.github-loading p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Error State */
.github-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 15px;
    text-align: center;
}

.github-error i {
    font-size: 3rem;
    color: var(--secondary-color);
}

.github-error p {
    color: var(--text-muted);
    max-width: 500px;
}

/* Repositories Grid */
.github-repos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.repo-card {
    background: var(--dark-card);
    padding: 25px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
}

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

.repo-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.repo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.repo-link {
    width: 32px;
    height: 32px;
    background: var(--dark-bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition-base);
    font-size: 0.875rem;
}

.repo-link:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.repo-name {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.repo-name a {
    color: var(--text-primary);
    transition: color 0.3s;
}

.repo-name a:hover {
    color: var(--primary-color);
}

.repo-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
    min-height: 48px;
}

.repo-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.repo-stats {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.repo-language {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.language-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.repo-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.repo-stat i {
    font-size: 0.75rem;
}

.repo-updated {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.repo-updated i {
    font-size: 0.7rem;
}

/* No Repos State */
.no-repos {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 15px;
}

.no-repos i {
    font-size: 3rem;
    color: var(--text-muted);
}

.no-repos p {
    color: var(--text-muted);
}

/* GitHub CTA */
.github-cta {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

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

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

/* API Info Notice */
.api-info {
    margin-top: 30px;
    padding: 20px;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.api-info i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

.contact-info-section h3 {
    font-size: 1.75rem;
    margin-bottom: 30px;
    color: var(--primary-light);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-detail {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--dark-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.contact-detail:hover {
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--dark-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-text h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-text p,
.contact-text a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-text a:hover {
    color: var(--primary-light);
}

/* Contact Form */
.contact-form {
    background: var(--dark-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group label {
    position: absolute;
    left: 15px;
    top: 15px;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition-base);
    background: var(--dark-bg);
    padding: 0 5px;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 0.75rem;
    color: var(--primary-color);
}

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

.contact-form button {
    width: 100%;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--dark-card);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-text p {
    color: var(--text-muted);
}

.footer-social {
    display: flex;
    gap: 15px;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 0;
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    /* Timeline Responsive */
    .timeline-line {
        left: 30px;
    }
    
    .timeline-item {
        padding-left: 80px !important;
        padding-right: 0 !important;
    }
    
    .timeline-left,
    .timeline-right {
        justify-content: flex-start;
    }
    
    .timeline-left .timeline-content,
    .timeline-right .timeline-content {
        text-align: left;
    }
    
    .timeline-dot {
        left: 30px;
    }
    
    .timeline-left .timeline-list li,
    .timeline-right .timeline-list li {
        padding-left: 25px;
        padding-right: 0;
    }
    
    .timeline-left .timeline-list li::before,
    .timeline-right .timeline-list li::before {
        left: 0;
        right: auto;
        content: '▸';
    }
    
    .timeline-left .timeline-technologies,
    .timeline-right .timeline-technologies {
        justify-content: flex-start;
    }
    
    .timeline-center {
        padding-left: 80px !important;
        justify-content: flex-start;
    }
    
    .timeline-center .timeline-content {
        text-align: left;
    }
    
    .timeline-center .timeline-technologies {
        justify-content: flex-start;
    }
    
    /* Skills & Portfolio */
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-preview-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    /* GitHub Section Responsive */
    .github-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .github-repos-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }

    .api-info {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .language-toggle {
        top: 10px;
        right: 10px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .profile-card {
        width: 250px;
        height: 250px;
    }
    
    .profile-icon {
        width: 150px;
        height: 150px;
        font-size: 60px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading Animation */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    background: linear-gradient(90deg, var(--dark-card) 0%, var(--dark-surface) 50%, var(--dark-card) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}