/* ========================
   Variables & Root
======================== */
:root {
    /* Colors */
    --primary: #0969da;
    --primary-dark: #0860ca;
    --secondary: #6366f1;
    --accent: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    /* Neutrals */
    --bg: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #f0f3f6;
    --text: #24292f;
    --text-secondary: #57606a;
    --text-tertiary: #656d76;
    --border: #d1d9e0;
    --border-light: #e5e7eb;

    /* Dark mode colors */
    --dark-bg: #0d1117;
    --dark-bg-secondary: #161b22;
    --dark-bg-tertiary: #21262d;
    --dark-text: #c9d1d9;
    --dark-text-secondary: #8b949e;
    --dark-border: #30363d;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.25);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px;

    /* Animations */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* Dark Mode Variables */
body.dark-mode {
    --bg: var(--dark-bg);
    --bg-secondary: var(--dark-bg-secondary);
    --bg-tertiary: var(--dark-bg-tertiary);
    --text: var(--dark-text);
    --text-secondary: var(--dark-text-secondary);
    --border: var(--dark-border);
}

/* ========================
   Base Styles
======================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* ========================
   Performance Metrics Badge
======================== */
.perf-metrics {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 12px;
    font-family: var(--font-mono);
    display: flex;
    gap: 12px;
    z-index: 100;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.5s 2s forwards;
}

.metric {
    color: var(--text-secondary);
}

.metric span {
    color: var(--accent);
    font-weight: 600;
}

/* ========================
   Terminal Loader
======================== */
.terminal-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--dark-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

.terminal-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.terminal {
    width: 600px;
    max-width: 90%;
    background: var(--dark-bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.terminal-header {
    background: var(--dark-bg-tertiary);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
    margin-left: auto;
    color: var(--dark-text-secondary);
    font-size: 13px;
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    color: var(--accent);
    min-height: 100px;
}

.prompt {
    color: var(--dark-text-secondary);
}

.typed-text {
    color: var(--dark-text);
}

.cursor {
    animation: blink 1s infinite;
}

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

/* ========================
   Navigation
======================== */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: var(--transition);
}

body.dark-mode .nav {
    background: rgba(13, 17, 23, 0.9);
}

.nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-brackets {
    color: var(--text-secondary);
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-fast);
    font-weight: 500;
}

.nav-link:hover {
    background: var(--bg-secondary);
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

.nav-icon {
    font-size: 0.875rem;
}

.nav-link span:not(.nav-icon) {
    font-size: 0.875rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

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

.nav-burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-burger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition-fast);
}

/* ========================
   Hero Section
======================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 80px;
    position: relative;
    overflow: hidden;
}

.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.hero-container {
    max-width: var(--container-width);
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--accent);
    border-radius: 20px;
    margin-bottom: 24px;
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    margin-bottom: 16px;
}

.hero-greeting {
    display: block;
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.hero-name {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-top: 8px;
}

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

.hero-role {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--text-secondary);
}

.role-dynamic {
    color: var(--primary);
    font-weight: 600;
}

.role-text {
    display: inline-block;
    min-width: 200px;
}

.hero-bio {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.highlight {
    color: var(--text);
    font-weight: 600;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

/* Code Editor */
.code-editor {
    background: var(--dark-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s;
}

.hero-visual:hover .code-editor {
    transform: perspective(1000px) rotateY(0);
}

.editor-header {
    background: var(--dark-bg-secondary);
    padding: 12px 16px;
    border-bottom: 1px solid var(--dark-border);
}

.editor-tabs {
    display: flex;
    gap: 16px;
}

.tab {
    color: var(--dark-text-secondary);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
}

.tab.active {
    background: var(--dark-bg);
    color: var(--dark-text);
}

.editor-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

.editor-body pre {
    margin: 0;
}

.editor-body code {
    display: block;
}

.line-number {
    color: var(--dark-text-secondary);
    margin-right: 16px;
    user-select: none;
}

.keyword { color: #ff79c6; }
.class { color: #50fa7b; }
.type { color: #8be9fd; }
.string { color: #f1fa8c; }
.function { color: #50fa7b; }
.annotation { color: #ff79c6; }

.editor-footer {
    background: var(--dark-bg-secondary);
    padding: 8px 16px;
    border-top: 1px solid var(--dark-border);
    display: flex;
    gap: 24px;
    font-size: 0.75rem;
    color: var(--dark-text-secondary);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-secondary);
    border-radius: 12px;
    position: relative;
    margin: 0 auto 8px;
}

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

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ========================
   Sections
======================== */
section {
    padding: var(--section-padding) 20px;
}

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

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 24px;
}

.title-number {
    color: var(--primary);
    font-family: var(--font-mono);
    font-size: 1.25rem;
}

.title-line {
    flex: 1;
    height: 1px;
    background: var(--border-light);
    max-width: 300px;
}

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

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateX(-20px);
    animation: fadeInLeft 0.6s forwards;
}

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

@keyframes fadeInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.timeline-dot {
    position: absolute;
    left: -44px;
    top: 8px;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--bg-secondary);
}

.timeline-date {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.timeline-card {
    background: var(--bg);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

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

.company-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.company-badge,
.award-badge {
    padding: 4px 8px;
    background: var(--accent);
    color: white;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.award-badge {
    background: var(--warning);
}

.role-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.role-location {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.role-description {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.role-highlights {
    list-style: none;
    margin-bottom: 20px;
}

.role-highlights li {
    padding-left: 24px;
    position: relative;
    margin-bottom: 8px;
    color: var(--text);
}

.role-highlights li i {
    position: absolute;
    left: 0;
    top: 4px;
    color: var(--primary);
    font-size: 0.75rem;
}

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

.tech-tag {
    padding: 4px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
}

/* ========================
   Skills Section
======================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.skill-category {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.category-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text);
}

.category-title i {
    color: var(--primary);
}

.skill-item {
    margin-bottom: 20px;
}

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

.skill-name {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 4px;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 2s ease;
}

.skill-level {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Architecture Skills */
.architecture-skills {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.subsection-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text);
}

.arch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.arch-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg);
    border-radius: 8px;
    border: 1px solid var(--border-light);
    transition: var(--transition-fast);
}

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

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

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 60px;
}

.project-card {
    background: var(--bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    height: 200px;
    background: var(--gradient-primary);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-fast);
}

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

.project-link {
    color: white;
    font-size: 2rem;
    transition: var(--transition-fast);
}

.project-link:hover {
    transform: scale(1.2);
}

.project-type {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
}

.project-content {
    padding: 24px;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

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

.project-tech span {
    padding: 4px 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text);
}

/* Dynamic Project Additions */
.project-stars {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 12px;
    background: rgba(255, 215, 0, 0.9);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text);
}

.project-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.project-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.project-stats i {
    font-size: 0.75rem;
}

.project-overlay a {
    margin: 0 8px;
}

/* Open Source Contributions */
.contributions-section {
    margin-top: 60px;
    background: var(--bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.contributions-grid {
    display: grid;
    gap: 24px;
    margin-top: 24px;
}

.contribution-card {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

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

.contribution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.contribution-repo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.contribution-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.contribution-status.merged {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent);
}

.contribution-status.open {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.contribution-status.closed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.contribution-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.contribution-title a {
    color: var(--text);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contribution-title a:hover {
    color: var(--primary);
}

.contribution-title i {
    font-size: 0.85rem;
    margin-left: 8px;
    opacity: 0.5;
}

.contribution-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.contribution-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.contribution-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.contribution-stats i {
    color: var(--primary);
    font-size: 0.75rem;
}

.contribution-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.contribution-impact,
.contribution-date {
    display: flex;
    align-items: center;
    gap: 6px;
}

.contribution-impact i {
    color: var(--warning);
}

.contribution-note {
    background: rgba(99, 102, 241, 0.05);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: flex;
    gap: 12px;
    align-items: start;
    margin-top: 24px;
}

.contribution-note i {
    color: var(--primary);
    margin-top: 2px;
}

.contribution-note p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* GitHub Stats */
.github-stats {
    background: var(--bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    margin-top: 32px;
}

.github-calendar {
    margin-top: 24px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

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

.contact-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.contact-text {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-link:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.contact-link i {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

/* Contact Form */
.contact-form {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group label {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    transition: var(--transition-fast);
    pointer-events: none;
}

.form-group textarea + label {
    top: 20px;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: -10px;
    left: 12px;
    font-size: 0.75rem;
    background: var(--bg-secondary);
    padding: 0 4px;
    color: var(--primary);
}

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

/* ========================
   Footer
======================== */
.footer {
    background: var(--bg-secondary);
    padding: 40px 20px;
    border-top: 1px solid var(--border-light);
}

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

.footer-text p {
    color: var(--text);
    margin-bottom: 4px;
}

.footer-tech {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.footer-links a {
    width: 40px;
    height: 40px;
    background: var(--bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateY(-4px);
}

/* ========================
   Back to Top
======================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    background: var(--primary-dark);
}

/* ========================
   Animations
======================== */
@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ========================
   Responsive Design
======================== */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .nav-menu {
        position: fixed;
        top: 64px;
        left: -100%;
        width: 100%;
        background: var(--bg);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s;
    }

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

    .nav-burger {
        display: flex;
    }

    .nav-link span:not(.nav-icon) {
        display: inline;
    }
}

@media (max-width: 640px) {
    .hero-name {
        font-size: 2.5rem;
    }

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

    .timeline {
        padding-left: 20px;
    }

    .timeline-dot {
        left: -24px;
    }

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