/* ========================================
   CSS Variables & Theme Configuration
======================================== */
:root {
    /* Colors - Dark Theme (Default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --bg-card: #15151f;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #a855f7;
    --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 50%;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f5f5f7;
    --bg-card: #ffffff;
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.12);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

/* ========================================
   Base Styles & Reset
======================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) var(--bg-secondary);
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

ul {
    list-style: none;
}

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

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

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

/* ========================================
   Cursor Glow Effect
======================================== */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ========================================
   Navigation
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 15px 0;
    box-shadow: var(--shadow-md);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-bracket {
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

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

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

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

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.theme-toggle:hover {
    background: var(--accent-primary);
    color: white;
    transform: rotate(360deg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    justify-content: center;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(168, 85, 247, 0.05) 0%, transparent 70%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.floating-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: var(--radius-full);
    filter: blur(60px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--accent-primary);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--accent-secondary);
    top: 60%;
    right: 10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: var(--accent-tertiary);
    bottom: 10%;
    left: 30%;
    animation-delay: -10s;
}

.shape-4 {
    width: 150px;
    height: 150px;
    background: var(--accent-primary);
    top: 30%;
    right: 30%;
    animation-delay: -15s;
}

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

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 25px;
    animation: fadeInUp 0.6s ease forwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.greeting {
    display: block;
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
    animation: fadeInUp 0.6s ease 0.1s forwards;
    opacity: 0;
}

.name-wrapper {
    position: relative;
    display: inline-block;
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
    min-height: 36px;
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.cursor {
    color: var(--accent-primary);
    animation: blink 1s infinite;
}

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

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 550px;
    margin-bottom: 35px;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.hero-description strong {
    color: var(--text-primary);
}

.hero-cta {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.5s forwards;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary i {
    transition: transform var(--transition-normal);
}

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

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-3px);
}

.hero-social {
    display: flex;
    gap: 15px;
    animation: fadeInUp 0.6s ease 0.6s forwards;
    opacity: 0;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    z-index: 1;
    animation: fadeInRight 0.8s ease 0.3s forwards;
    opacity: 0;
}

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

.profile-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.profile-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--accent-primary), transparent 30%);
    animation: rotate 4s linear infinite;
    opacity: 0.1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.profile-image {
    position: relative;
    width: 180px;
    height: 180px;
    margin: 0 auto 25px;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
    border: 4px solid var(--bg-tertiary);
}

.profile-ring {
    position: absolute;
    inset: -10px;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    border-top-color: var(--accent-primary);
    border-right-color: var(--accent-secondary);
    animation: rotate 3s linear infinite;
}

.profile-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat {
    padding: 10px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.code-snippet {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 300px;
    animation: float 6s ease-in-out infinite;
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 15px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
}

.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #febc2e; }
.code-dot.green { background: #28c840; }

.code-title {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
    font-family: var(--font-mono);
}

.code-content {
    padding: 15px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.6;
    overflow-x: auto;
}

.code-content .keyword { color: #c678dd; }
.code-content .variable { color: #e06c75; }
.code-content .property { color: #e5c07b; }
.code-content .string { color: #98c379; }
.code-content .boolean { color: #56b6c2; }
.code-content .method { color: #61afef; }

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

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

/* ========================================
   Section Headers
======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 15px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ========================================
   About Section
======================================== */
.about-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-image-wrapper img {
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

.about-image-wrapper:hover img {
    transform: scale(1.05);
}

.about-image-border {
    position: absolute;
    inset: -10px;
    border: 2px solid var(--accent-primary);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.about-experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--accent-gradient);
    padding: 20px 30px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
    color: white;
}

.badge-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.badge-text {
    font-size: 0.85rem;
    opacity: 0.9;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-text strong {
    color: var(--accent-primary);
}

.about-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.detail-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

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

.detail-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.detail-item span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ========================================
   Skills Section
======================================== */
.skills {
    background: var(--bg-secondary);
}

.skills-content {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.skills-category {
    animation: fadeInUp 0.6s ease forwards;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.category-title i {
    width: 45px;
    height: 45px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 25px;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent-primary);
    transition: all var(--transition-normal);
}

.skill-card:hover .skill-icon {
    background: var(--accent-gradient);
    color: white;
    transform: scale(1.1);
}

.skill-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.skill-level {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.level-bar {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    width: 0;
    transition: width 1s ease;
}

.skill-card:hover .level-bar {
    width: var(--level);
}

/* ========================================
   Experience Section
======================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    justify-content: flex-end;
    padding-left: 50%;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-left: 0;
    padding-right: 50%;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    z-index: 1;
    box-shadow: var(--shadow-glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    margin-left: 40px;
    position: relative;
    transition: all var(--transition-normal);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 40px;
}

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

.timeline-badge {
    display: inline-block;
    padding: 5px 12px;
    background: var(--accent-gradient);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-company {
    display: block;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 5px;
}

.timeline-date {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tags span {
    padding: 5px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

/* ========================================
   Education Section
======================================== */
.education {
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    display: flex;
    gap: 25px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-gradient);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
}

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

.education-card:hover::before {
    transform: scaleY(1);
}

.education-icon {
    width: 70px;
    height: 70px;
    min-width: 70px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.education-content {
    flex: 1;
}

.education-badge {
    display: inline-block;
    padding: 5px 12px;
    background: var(--accent-gradient);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.education-content h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.education-institution {
    display: block;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 5px;
}

.education-date {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.education-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.education-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.education-tags span {
    padding: 5px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

/* ========================================
   Projects Section
======================================== */
.projects {
    background: var(--bg-secondary);
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 25px;
    border-radius: var(--radius-xl);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.3);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.project-image {
    position: relative;
    height: 200px;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    transition: all var(--transition-normal);
}

.project-card:hover .project-placeholder {
    transform: scale(1.1);
    filter: blur(8px);
    opacity: 0.3;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

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

.project-links {
    display: flex;
    gap: 15px;
    position: relative;
    z-index: 10;
}

.project-link {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.project-card:hover .project-link {
    transform: translateY(0);
    opacity: 1;
}

.project-card:hover .project-link:nth-child(2) {
    transition-delay: 0.1s;
}

.project-link:hover {
    transform: scale(1.1) !important;
}

.project-content {
    padding: 25px;
}

.project-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.project-tech span {
    padding: 5px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.projects-more {
    text-align: center;
    margin-top: 50px;
}

/* ========================================
   Contact Section
======================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

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

.contact-icon {
    width: 55px;
    height: 55px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-text span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.contact-text a,
.contact-text p {
    color: var(--text-primary);
    font-weight: 500;
}

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

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

.social-btn {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.social-btn:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: white;
    transform: translateY(-5px);
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-normal);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--bg-secondary);
    position: relative;
    padding-top: 80px;
}

.footer-wave {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    overflow: hidden;
}

.footer-wave svg {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100%;
    fill: var(--bg-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: var(--text-secondary);
    max-width: 300px;
}

.footer-links h4,
.footer-social h4 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-social .social-links {
    display: flex;
    gap: 12px;
}

.footer-social .social-links a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.footer-social .social-links a:hover {
    background: var(--accent-gradient);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom i {
    color: var(--accent-primary);
}

/* ========================================
   Back to Top Button
======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

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

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 0;
        margin-bottom: 40px;
    }
    
    .hero-description {
        margin: 0 auto 35px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .code-snippet {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-image {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .about-details {
        max-width: 500px;
        margin: 30px auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }
    
    .timeline-marker {
        left: 20px;
        transform: translateX(-50%);
    }
    
    .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 0;
        margin-right: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: none;
    }
    
    .footer-links ul {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .footer-social .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .about-details {
        grid-template-columns: 1fr;
    }
    
    .profile-stats {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .projects-filter {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .education-card {
        flex-direction: column;
        text-align: center;
    }
    
    .education-icon {
        margin: 0 auto;
    }
}

/* ========================================
   Print Styles
======================================== */
@media print {
    .navbar,
    .back-to-top,
    .hero-bg,
    .cursor-glow {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}