/* ============================================
   Portfolio Styles - Mohammad Ali Hariri
   Modern, Professional, Dark/Light Theme
   ============================================ */

/* CSS Variables */
:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --accent-primary: #3b82f6;
    --accent-secondary: #6366f1;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 10px 40px rgba(0, 0, 0, 0.1);
    --code-bg: #1e293b;
    --code-text: #e2e8f0;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --badge-bg: #dbeafe;
    --badge-text: #1d4ed8;
    --tag-bg: #f1f5f9;
    --tag-text: #475569;
    --tag-primary-bg: #dbeafe;
    --tag-primary-text: #1d4ed8;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --accent-primary: #60a5fa;
    --accent-secondary: #818cf8;
    --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #818cf8 100%);
    --border-color: #334155;
    --card-bg: #1e293b;
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --card-shadow-hover: 0 10px 40px rgba(0, 0, 0, 0.4);
    --code-bg: #0f172a;
    --code-text: #e2e8f0;
    --nav-bg: rgba(15, 23, 42, 0.95);
    --badge-bg: rgba(59, 130, 246, 0.2);
    --badge-text: #60a5fa;
    --tag-bg: #334155;
    --tag-text: #cbd5e1;
    --tag-primary-bg: rgba(59, 130, 246, 0.2);
    --tag-primary-text: #60a5fa;
}

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

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

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

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

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

ul {
    list-style: none;
}

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

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 2px;
}

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

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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-normal);
    border-radius: var(--radius-full);
}

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

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

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

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.icon-sun, .icon-moon {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

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

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

.icon-sun {
    display: none;
}

.icon-moon {
    display: block;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    gap: 5px;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

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

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: calc(64px + var(--space-3xl)) 0 var(--space-3xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-content {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: var(--badge-bg);
    color: var(--badge-text);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.hero-highlight {
    display: block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

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

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
}

/* Code Window */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.code-window {
    width: 100%;
    max-width: 480px;
    background: var(--code-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--card-shadow-hover);
    text-align: left;
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

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

.code-content {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--code-text);
    overflow-x: auto;
    text-align: left;
}

.code-content .keyword { color: #c792ea; }
.code-content .type { color: #82aaff; }
.code-content .method { color: #82aaff; }
.code-content .string { color: #c3e88d; }

/* Typing Cursor Animation */
.code-content .cursor {
    color: #f8fafc;
    font-weight: 400;
    animation: none;
}

.code-content .cursor.blink {
    animation: blink 1s step-end infinite;
}

.code-content .cursor.cursor-done {
    animation: blink 1s step-end infinite;
    opacity: 0.7;
}

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

/* Code window minimum height during typing */
.code-content code {
    display: block;
    min-height: 280px;
    white-space: pre;
    word-break: normal;
    text-align: left;
}

/* ============================================
   Education Banner
   ============================================ */
.education-banner {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-lg) 0;
}

.education-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    text-align: center;
}

.education-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    color: white;
    flex-shrink: 0;
}

.education-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

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

/* ============================================
   Section Styles
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* ============================================
   Skills Section
   ============================================ */
.skills {
    padding: var(--space-3xl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
}

.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-primary);
}

.skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    margin-bottom: var(--space-lg);
}

.skill-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.skill-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--tag-bg);
    color: var(--tag-text);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
}

.skill-tag.primary {
    background: var(--tag-primary-bg);
    color: var(--tag-primary-text);
}

/* ============================================
   Projects Section
   ============================================ */
.projects {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-lg);
}

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

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

.project-card.featured {
    border-color: var(--accent-primary);
    border-width: 2px;
}

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

.project-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
}

.project-badge {
    padding: var(--space-xs) var(--space-md);
    background: var(--tag-primary-bg);
    color: var(--tag-primary-text);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-badge.side {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

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

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

.project-tech span {
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-secondary);
    color: var(--text-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

/* ============================================
   Experience Section
   ============================================ */
.experience {
    padding: var(--space-3xl) 0;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

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

.timeline-marker {
    position: absolute;
    left: -5px;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.timeline-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.timeline-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.timeline-company {
    color: var(--accent-primary);
    font-size: 0.95rem;
}

.timeline-date {
    display: block;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Strengths Section
   ============================================ */
.strengths {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.strength-item {
    text-align: center;
}

.strength-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: var(--space-lg);
}

.strength-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.strength-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ============================================
   Interests Section
   ============================================ */
.interests {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

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

.interests-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
}

.interests-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.interest-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-xl);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    min-width: 140px;
    transition: all var(--transition-normal);
}

.interest-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-primary);
}

.interest-item svg {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
}

.interest-item span {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--space-3xl) 0;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.contact-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.contact-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-item svg {
    color: var(--accent-primary);
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-primary);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

.contact-btn.linkedin:hover {
    background: #0077b5;
    color: white;
    border-color: #0077b5;
}

.contact-btn.github:hover {
    background: #333;
    color: white;
    border-color: #333;
}

[data-theme="dark"] .contact-btn.github:hover {
    background: #f5f5f5;
    color: #333;
    border-color: #f5f5f5;
}

.contact-btn.email:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.contact-btn.booking:hover {
    background: #00a2ff;
    color: white;
    border-color: #00a2ff;
}

/* Hero Booking Button */
.btn-booking {
    background: linear-gradient(135deg, #00a2ff 0%, #006fd6 100%);
    color: white;
    gap: var(--space-sm);
    box-shadow: 0 4px 14px rgba(0, 162, 255, 0.3);
}

.btn-booking:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 162, 255, 0.4);
}

.btn-booking svg {
    flex-shrink: 0;
}

/* ============================================
   Languages Section
   ============================================ */
.languages {
    padding: var(--space-xl) 0;
    background: var(--bg-secondary);
}

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

.languages-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.languages-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.language-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.language-name {
    font-weight: 600;
    color: var(--text-primary);
}

.language-level {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--space-xl) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer p {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
        width: 100%;
    }

    .code-window {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--nav-bg);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-lg);
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding-top: calc(64px + var(--space-xl));
        min-height: auto;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }

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

    .code-window {
        width: 100%;
    }

    .code-content {
        font-size: 0.7rem;
        padding: var(--space-md);
    }

    .code-content code {
        min-height: 220px;
        text-align: left;
    }

    .timeline::before {
        left: 6px;
    }

    .timeline-marker {
        left: 0;
    }

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

    .contact-links {
        flex-direction: column;
        align-items: stretch;
    }

    .contact-btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .skill-card,
    .project-card {
        padding: var(--space-lg);
    }

    .code-content {
        font-size: 0.65rem;
        padding: var(--space-md);
        overflow-x: auto;
    }

    .code-content code {
        min-height: 200px;
    }

    .code-window {
        border-radius: var(--radius-md);
    }

    .code-header {
        padding: var(--space-sm) var(--space-md);
    }

    .code-dot {
        width: 10px;
        height: 10px;
    }
}