/* ===================================
   CSS Custom Properties (Theme)
   =================================== */
:root {
    /* Colors from brand palette */
    --color-primary: #1A73E8;
    --color-primary-light: #4AA8FF;
    --color-accent: #F5A623;
    --color-dark: #0D1B2A;
    --color-dark-lighter: #1B2838;
    --color-bg: #F8FAFC;
    --color-gray: #64748B;
    --color-gray-light: #94A3B8;
    --color-white: #FFFFFF;

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

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --nav-height: 72px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
    list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.section-title.centered {
    text-align: center;
}

.section-title.light {
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray);
    max-width: 600px;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle.light {
    color: rgba(255, 255, 255, 0.9);
}

.centered .section-subtitle,
.section-subtitle:only-of-type {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(248, 250, 252, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-dark);
    transition: color var(--transition-fast);
}

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-md);
}

.nav-cta:hover {
    background: var(--color-primary-light);
    color: var(--color-white) !important;
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    transition: all var(--transition-fast);
}

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

.hero-background {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.circuit-traces {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(26, 115, 232, 0.03) 1px, transparent 1px),
        linear-gradient(rgba(26, 115, 232, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: circuitPulse 20s linear infinite;
}

@keyframes circuitPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* Terminal Styles */
.hero-terminal {
    background: var(--color-dark);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: terminalFloat 6s ease-in-out infinite;
}

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

.terminal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-sm);
    background: var(--color-dark-lighter);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

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

.terminal-btn.red { background: #FF5F56; }
.terminal-btn.yellow { background: #FFBD2E; }
.terminal-btn.green { background: #27C93F; }

/* Terminal button hover states with macOS icons */
.terminal-btn {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: bold;
    color: transparent;
    transition: all var(--transition-fast);
}

.terminal-btn:hover {
    transform: scale(1.1);
}

.terminal-btn.red:hover {
    color: rgba(0, 0, 0, 0.5);
}
.terminal-btn.red:hover::after {
    content: '\00D7';
}

.terminal-btn.yellow:hover {
    color: rgba(0, 0, 0, 0.5);
}
.terminal-btn.yellow:hover::after {
    content: '\2212';
}

.terminal-btn.green:hover {
    color: rgba(0, 0, 0, 0.5);
}
.terminal-btn.green:hover::after {
    content: '\002B';
}

.terminal-btn:active {
    transform: scale(0.9);
    filter: brightness(0.8);
}

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-gray-light);
    margin-left: auto;
    margin-right: auto;
}

.terminal-body {
    padding: var(--spacing-md);
    min-height: 280px;
}

.terminal-content {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
}

.terminal-line {
    display: flex;
    align-items: center;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.prompt {
    color: var(--color-accent);
    margin-right: var(--spacing-xs);
}

.command {
    color: var(--color-primary-light);
}

.cursor {
    color: var(--color-accent);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

@keyframes blink {
    50% { opacity: 0; }
}

.terminal-output {
    color: var(--color-gray-light);
}

.terminal-output .output-line {
    margin-bottom: 4px;
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
}

.terminal-output .success {
    color: #27C93F;
}

.terminal-output .info {
    color: var(--color-primary-light);
}

.terminal-output .warning {
    color: var(--color-accent);
}

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

/* Terminal Container for WinBox */
.hero-terminal-container {
    position: relative;
    width: 100%;
    max-width: 540px;
    min-height: 380px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Reopen Terminal Button */
.terminal-reopen-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-dark);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
    margin: var(--spacing-lg) auto;
    animation: pulseGlow 2s ease-in-out infinite;
}

.terminal-reopen-btn svg {
    width: 20px;
    height: 20px;
}

.terminal-reopen-btn:hover {
    background: var(--color-dark-lighter);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.4); }
    50% { box-shadow: 0 0 20px 5px rgba(26, 115, 232, 0.2); }
}

/* Minimized Terminal Dock */
.terminal-dock {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 999;
}

.terminal-dock-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-dark);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-xl);
    animation: bounceIn 0.3s ease-out;
}

.terminal-dock-item:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

@keyframes bounceIn {
    0% { transform: translateY(100px) scale(0.5); opacity: 0; }
    60% { transform: translateY(-10px) scale(1.02); }
    100% { transform: translateY(0) scale(1); opacity: 1; }
}

/* WinBox Customization */
.winbox {
    background: var(--color-dark) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xl) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    position: absolute !important; /* Stay in place when scrolling */
}

.winbox.no-animation {
    transition: none !important;
}

.winbox .wb-header {
    background: var(--color-dark-lighter) !important;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.winbox .wb-title {
    font-family: var(--font-mono) !important;
    font-size: 0.8125rem !important;
    color: var(--color-gray-light) !important;
}

.winbox .wb-body {
    background: var(--color-dark) !important;
    border-radius: var(--radius-lg) !important;
    overflow: hidden !important;
}

/* Hide default WinBox header and controls */
.winbox .wb-header {
    display: none !important;
}

.winbox .wb-control {
    display: none !important;
}

.winbox.no-header .wb-header {
    height: 0 !important;
    min-height: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
}

/* Custom terminal header inside WinBox */
.winbox .terminal-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem var(--spacing-sm);
    background: var(--color-dark-lighter);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    cursor: move;
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    touch-action: none;
    position: relative;
    z-index: 10;
}

.winbox.dragging {
    cursor: move !important;
}

.winbox.dragging * {
    cursor: move !important;
}

@media (max-width: 1024px) {
    .winbox .terminal-header {
        cursor: default;
    }
}

/* Maximized state */
.winbox.max {
    border-radius: 0 !important;
}

.winbox.max .wb-header {
    border-radius: 0 !important;
}

.winbox.max .wb-body {
    border-radius: 0 !important;
}

/* Hero Content */
.hero-content {
    max-width: 540px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-image-wrapper {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--color-primary-light);
    box-shadow: var(--shadow-lg);
}

.about-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text {
    max-width: 650px;
}

.about-lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.about-text p {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.about-education {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    color: var(--color-gray);
    margin-top: var(--spacing-sm);
}

.about-education .icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

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

.service-card-primary {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
    color: var(--color-white);
}

.service-card-primary p {
    color: var(--color-gray-light);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.service-card-primary .service-icon {
    color: var(--color-accent);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.service-card-primary h3 {
    color: var(--color-white);
    font-size: 1.75rem;
}

.service-card p {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.service-features li {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
    background: rgba(26, 115, 232, 0.1);
    color: var(--color-primary);
    border-radius: var(--radius-full);
}

.service-card-primary .service-features li {
    background: rgba(245, 166, 35, 0.15);
    color: var(--color-accent);
}

/* ===================================
   Experience Section
   =================================== */
.experience {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: var(--spacing-xl);
}

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

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

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

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--spacing-xl) - 6px);
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-dark);
    box-shadow: 0 0 0 3px var(--color-primary);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-header h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-white);
}

.timeline-date {
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 500;
}

.timeline-role {
    color: var(--color-primary-light);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    color: var(--color-gray-light);
    line-height: 1.7;
}

/* ===================================
   Open Source Section
   =================================== */
.opensource {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.opensource-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.featured-project {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.project-icon {
    width: 32px;
    height: 32px;
    color: var(--color-dark);
}

.project-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark);
    font-family: var(--font-mono);
}

.project-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.project-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.stat {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9375rem;
    color: var(--color-gray);
}

.stat svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-primary);
}

.project-link svg {
    width: 16px;
    height: 16px;
}

.github-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
    border-radius: var(--radius-lg);
    height: 100%;
}

.arctic-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(74, 168, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--color-primary-light);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.arctic-badge svg {
    width: 20px;
    height: 20px;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-white);
    color: var(--color-dark);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-base);
}

.github-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-dark);
}

.github-link svg {
    width: 24px;
    height: 24px;
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.contact-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-white);
    font-size: 1.125rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

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

.contact-method svg {
    width: 24px;
    height: 24px;
}

.contact-company {
    text-align: right;
    color: var(--color-white);
}

.contact-logo {
    height: 48px;
    width: auto;
    margin-left: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.contact-company p {
    opacity: 0.9;
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--spacing-md) 0;
    background: var(--color-dark);
    text-align: center;
}

.footer p {
    color: var(--color-gray);
    font-size: 0.875rem;
}

/* ===================================
   Scroll Animations
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablet (768px) */
@media (max-width: 1024px) {
    :root {
        --spacing-3xl: 4rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .hero-terminal-container {
        max-width: 500px;
        margin: 0 auto;
        order: 2;
    }

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

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

    .hero-title {
        font-size: 2.75rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        display: flex;
        justify-content: center;
    }

    .about-text {
        max-width: 100%;
    }

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

    .service-card-primary {
        grid-column: span 1;
    }

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

    .github-profile {
        padding: var(--spacing-lg);
    }

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

    .contact-company {
        text-align: center;
    }

    .contact-logo {
        margin-left: auto;
        margin-right: auto;
    }
}

/* Mobile (768px) */
@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2.5rem;
    }

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

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: flex;
    }

    .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 {
        min-height: auto;
        padding: calc(var(--nav-height) + var(--spacing-xl)) 0 var(--spacing-xl);
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .terminal-body {
        min-height: 200px;
        padding: var(--spacing-sm);
    }

    .terminal-content {
        font-size: 0.75rem;
    }

    .about-image-wrapper {
        width: 200px;
        height: 200px;
    }

    .timeline {
        padding-left: var(--spacing-lg);
    }

    .timeline-marker {
        left: calc(-1 * var(--spacing-lg) - 6px);
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-method {
        font-size: 1rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* Small Mobile (480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

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

    .hero-title {
        font-size: 1.875rem;
    }

    .service-card {
        padding: var(--spacing-md);
    }

    .timeline-content {
        padding: var(--spacing-md);
    }

    .project-stats {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}