/* ========================================
   CSS Design System for Developer Portfolio
   ======================================== */

/* ----------------------------------------
   CSS Custom Properties (Design Tokens)
   ---------------------------------------- */
:root {
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgb(99 102 241 / 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* Light Theme Colors */
[data-theme="light"] {
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-secondary: #10b981;
    --color-secondary-light: #34d399;
    --color-accent: #f59e0b;
    
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    
    --color-text-primary: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-tertiary: #94a3b8;
    --color-text-inverse: #f1f5f9;
    
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);
    --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
}

/* Dark Theme Colors (Default) */
[data-theme="dark"] {
    --color-primary: #818cf8;
    --color-primary-light: #a5b4fc;
    --color-primary-dark: #6366f1;
    --color-secondary: #34d399;
    --color-secondary-light: #6ee7b7;
    --color-accent: #fbbf24;
    
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-surface: #1e293b;
    --color-surface-elevated: #334155;
    
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-tertiary: #64748b;
    --color-text-inverse: #1e293b;
    
    --color-border: #334155;
    --color-border-light: #475569;
    
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(51, 65, 85, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #c084fc 100%);
    --gradient-secondary: linear-gradient(135deg, #34d399 0%, #2dd4bf 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-primary);
}

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

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

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

ul, ol {
    list-style: none;
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-24) 0;
}

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

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgb(99 102 241 / 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgb(99 102 241 / 0.5);
    color: white;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

.btn-full {
    width: 100%;
}

/* ----------------------------------------
   Navigation
   ---------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    background: transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-3) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

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

.logo-bracket {
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--space-2) 0;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    position: relative;
    transition: all var(--transition-normal);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-normal);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    transform: rotate(180deg);
}

.theme-toggle svg {
    color: var(--color-text-secondary);
    transition: color var(--transition-normal);
}

.theme-toggle:hover svg {
    color: var(--color-primary);
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

[data-theme="light"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: block;
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-24) 0;
}

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-secondary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: var(--radius-full);
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.hero-name {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    line-height: 1.1;
}

.hero-title {
    font-size: var(--text-2xl);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.hero-headline {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-8);
}

.hero-social {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-4px);
}

/* Video Container */
.hero-video {
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.video-container {
    padding: var(--space-4);
    overflow: hidden;
}

.video-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-3);
}

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

.video-dot.red {
    background: #ff5f56;
}

.video-dot.yellow {
    background: #ffbd2e;
}

.video-dot.green {
    background: #27c93f;
}

.video-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-left: var(--space-4);
}

.video-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-tertiary);
    animation: bounce 2s infinite;
}

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

/* ----------------------------------------
   Section Headers
   ---------------------------------------- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
}

/* ----------------------------------------
   About Section
   ---------------------------------------- */
.about {
    background: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.about-text {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.8;
}

.about-text strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.about-location {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-tertiary);
    font-size: var(--text-sm);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.stat-card {
    padding: var(--space-6);
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ----------------------------------------
   Skills Section
   ---------------------------------------- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
}

.skill-category {
    padding: var(--space-6);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    color: white;
}

.backend-icon {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.database-icon {
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.frontend-icon {
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

.cloud-icon {
    background: linear-gradient(135deg, #3b82f6, #6366f1);
}

.testing-icon {
    background: linear-gradient(135deg, #ec4899, #f43f5e);
}

.skill-category-title {
    font-size: var(--text-lg);
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.skill-tag i {
    font-size: 1.1em;
}

/* ----------------------------------------
   Experience Timeline
   ---------------------------------------- */
.experience {
    background: var(--color-bg-alt);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
}

.timeline-item {
    position: relative;
    padding-left: var(--space-10);
    margin-bottom: var(--space-8);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -7px;
    top: var(--space-6);
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border: 3px solid var(--color-bg-alt);
    border-radius: var(--radius-full);
    z-index: 1;
}

.timeline-content {
    padding: var(--space-6);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
    gap: var(--space-2);
}

.timeline-company h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.timeline-role {
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-weight: 500;
}

.timeline-date {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

.timeline-project {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.timeline-achievements {
    margin-bottom: var(--space-4);
}

.timeline-achievements li {
    position: relative;
    padding-left: var(--space-5);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.timeline-achievements li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
}

.timeline-achievements li strong {
    color: var(--color-text-primary);
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.timeline-tech span {
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

/* ----------------------------------------
   Projects Section
   ---------------------------------------- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.project-card {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
}

.project-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: white;
}

.project-badge {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.project-badge.featured {
    background: var(--color-accent);
    color: white;
}

.project-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.project-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
    flex-grow: 1;
}

.project-metrics {
    display: flex;
    gap: var(--space-6);
    margin-bottom: var(--space-4);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-secondary);
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.project-tech span {
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    font-family: var(--font-mono);
}

/* Utility Apps Section */
.utility-apps-section {
    text-align: center;
}

.subsection-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.subsection-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.utility-apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.utility-card {
    padding: var(--space-6);
    text-align: center;
    position: relative;
}

.utility-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
}

.utility-card h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.utility-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.coming-soon-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}

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

.education-card {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-8);
    display: flex;
    gap: var(--space-6);
    align-items: center;
}

.education-icon {
    color: var(--color-primary);
    flex-shrink: 0;
}

.education-content h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.education-institution {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.education-details {
    display: flex;
    gap: var(--space-6);
}

.education-year,
.education-gpa {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

/* ----------------------------------------
   Contact Section
   ---------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
}

.contact-intro {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    text-decoration: none;
}

.contact-method-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: white;
    flex-shrink: 0;
}

.contact-method-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.contact-method-value {
    color: var(--color-text-primary);
    font-weight: 500;
}

.contact-social {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.contact-social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.contact-social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.download-resume-btn {
    width: auto;
}

/* Contact Form */
.contact-form {
    padding: var(--space-8);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgb(99 102 241 / 0.2);
}

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

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

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
    padding: var(--space-12) 0;
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
}

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

.footer-logo {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

.footer-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-video {
        order: 2;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-headline {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        order: -1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
        --text-3xl: 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-6);
        background: var(--color-surface);
        padding: var(--space-8);
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        z-index: var(--z-modal);
    }
    
    .nav-link {
        font-size: var(--text-lg);
    }
    
    .hero-name {
        font-size: var(--text-4xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .timeline::before {
        left: 8px;
    }
    
    .timeline-marker {
        left: 0;
    }
    
    .timeline-item {
        padding-left: var(--space-8);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .education-card {
        flex-direction: column;
        text-align: center;
    }
    
    .education-details {
        justify-content: center;
    }
    
    .contact-social {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .section {
        padding: var(--space-16) 0;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .utility-apps-grid {
        grid-template-columns: 1fr;
    }
}