/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
    /* Colors - Unique Tech Art Palette */
    --color-bg-primary: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #21262d;
    --color-bg-card: rgba(33, 38, 45, 0.7);

    --color-text-primary: #f0f6fc;
    --color-text-secondary: #c9d1d9;
    --color-text-muted: #8b949e;

    --color-accent-primary: #ff6b35;
    --color-accent-secondary: #f7931e;
    --color-accent-cyan: #58a6ff;
    --color-accent-teal: #56d4dd;
    --color-accent-purple: #bc8cff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --gradient-secondary: linear-gradient(135deg, #58a6ff 0%, #56d4dd 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #bc8cff 100%);
    --gradient-text: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #58a6ff 100%);

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

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

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);

    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;

    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   ANIMATED BACKGROUND CANVAS
   ============================================ */
#backgroundCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(13, 17, 23, 0.95);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid rgba(255, 107, 53, 0.2);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: var(--font-size-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.logo-bracket {
    color: var(--color-accent-primary);
    font-weight: 700;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-base);
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

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

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.title-line:nth-child(1) {
    animation-delay: 0.1s;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

.title-line:nth-child(3) {
    animation-delay: 0.5s;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradientShift 3s ease infinite;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.7s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.9s forwards;
    opacity: 0;
}

.hero-visual {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.visual-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.3) 0%, rgba(88, 166, 255, 0.15) 30%, transparent 70%);
    filter: blur(40px);
    z-index: -1;
    pointer-events: none;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.rotating-cube {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-xl);
    opacity: 0.15;
    animation: rotate3d 20s linear infinite;
    box-shadow: 0 0 80px rgba(255, 107, 53, 0.4);
    border: 1px solid rgba(255, 107, 53, 0.2);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 107, 53, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 107, 53, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.shape {
    position: absolute;
    border: 2px solid rgba(255, 107, 53, 0.3);
    border-radius: 8px;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 10%;
    right: 15%;
    animation: float 6s ease-in-out infinite;
    transform: rotate(45deg);
}

.shape-2 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 10%;
    animation: float 8s ease-in-out infinite 1s;
    border-radius: 50%;
    border-color: rgba(88, 166, 255, 0.3);
}

.shape-3 {
    width: 80px;
    height: 80px;
    top: 60%;
    right: 25%;
    animation: float 7s ease-in-out infinite 2s;
    transform: rotate(30deg);
    border-color: rgba(188, 140, 255, 0.3);
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: pulse 4s ease-in-out infinite;
}

.glow-orb-1 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.6) 0%, transparent 70%);
    top: 20%;
    left: 10%;
}

.glow-orb-2 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(88, 166, 255, 0.5) 0%, transparent 70%);
    bottom: 15%;
    right: 15%;
    animation-delay: 2s;
}

.particle-field {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: fadeIn 1s ease 1.5s forwards;
    opacity: 0;
}

.scroll-arrow {
    width: 24px;
    height: 36px;
    border: 2px solid var(--color-accent-primary);
    border-radius: 12px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-accent-primary);
    border-radius: 2px;
    animation: scrollDown 2s ease infinite;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 107, 53, 0.6);
}

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

.btn-secondary:hover {
    background: rgba(255, 107, 53, 0.1);
    border-color: var(--color-accent-secondary);
    transform: translateY(-2px);
}

/* ============================================
   SECTIONS
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-3xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-number {
    font-family: var(--font-mono);
    font-size: var(--font-size-xl);
    color: var(--color-accent-primary);
    font-weight: 600;
}

/* ============================================
   WORK SECTION
   ============================================ */
.work-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: var(--spacing-xl);
}

.project-card {
    background: var(--color-bg-card);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: all var(--transition-base);
    backdrop-filter: blur(var(--blur-sm));
    position: relative;
    /* Essential for stretched link */
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 107, 53, 0.4);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(255, 107, 53, 0.2);
}

.project-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    background: var(--gradient-primary);
    pointer-events: none;
    /* Let clicks pass through to the card if needed, though stretched link handles it */
}

.project-image img,
.project-image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img,
.project-card:hover .project-image video {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 39, 0.8) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-info {
    padding: var(--spacing-xl);
}

.project-tags {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
    /* Keep tags clickable if they become links later */
    pointer-events: none;
    /* Actually, they are spans now, so pass through */
}

.tag {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 107, 53, 0.1);
    color: var(--color-accent-primary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.project-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.project-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

/* Stretched link to make whole card clickable */
.project-link::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 1;
}

.project-link:hover {
    gap: var(--spacing-md);
}

.project-link svg {
    transition: transform var(--transition-base);
}

.project-link:hover svg {
    transform: translateX(4px);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

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

.skill-category {
    background: var(--color-bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(255, 107, 53, 0.15);
    backdrop-filter: blur(var(--blur-sm));
    transition: all var(--transition-base);
}

.skill-category:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 107, 53, 0.4);
    box-shadow: var(--shadow-md), 0 0 20px rgba(255, 107, 53, 0.1);
}

.skill-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    animation: float 3s ease-in-out infinite;
}

.skill-category:nth-child(2) .skill-icon {
    animation-delay: 0.5s;
}

.skill-category:nth-child(3) .skill-icon {
    animation-delay: 1s;
}

.skill-category:nth-child(4) .skill-icon {
    animation-delay: 1.5s;
}

.skill-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-accent-primary);
    font-weight: bold;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.about-intro {
    font-size: var(--font-size-2xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 107, 53, 0.15);
    backdrop-filter: blur(var(--blur-sm));
}

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

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-visual {
    position: relative;
}

.code-window {
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.2);
    box-shadow: var(--shadow-lg);
}

.code-header {
    background: rgba(13, 17, 23, 0.8);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
}

.code-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-text-muted);
}

.code-dots span:nth-child(1) {
    background: #ff5f56;
}

.code-dots span:nth-child(2) {
    background: #ffbd2e;
}

.code-dots span:nth-child(3) {
    background: #27c93f;
}

.code-title {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.code-content {
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.8;
}

.code-keyword {
    color: #c792ea;
}

.code-function {
    color: #82aaff;
}

.code-comment {
    color: #676e95;
    font-style: italic;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-card);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 107, 53, 0.15);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
    backdrop-filter: blur(var(--blur-sm));
}

.contact-method:hover {
    border-color: var(--color-accent-primary);
    background: rgba(255, 107, 53, 0.1);
    transform: translateX(4px);
}

.contact-method svg {
    color: var(--color-accent-primary);
    flex-shrink: 0;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(255, 107, 53, 0.1);
}

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

.footer-logo {
    font-family: var(--font-mono);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

.footer-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

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

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes rotate3d {
    from {
        transform: translate(-50%, -50%) rotate(0deg) rotateY(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg) rotateY(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

@keyframes scrollDown {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }

    50% {
        transform: translateX(-50%) translateY(12px);
        opacity: 0;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero {
        padding-top: var(--spacing-3xl);
        height: auto;
        min-height: 100vh;
    }

    .hero-text {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 4rem);
    }

    .hero-visual {
        height: 500px;
        order: -1;
    }

    .code-overlay {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 600px;
        height: 80vh;
        max-height: 600px;
        z-index: 2000;
    }

    .code-overlay.hidden {
        transform: translate(-20px, -50%) scale(0.95);
        opacity: 0;
        pointer-events: none;
    }

    .work-grid {
        grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }

    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(13, 17, 23, 0.98);
        backdrop-filter: blur(var(--blur-lg));
        flex-direction: column;
        justify-content: center;
        align-items: center;
        padding: var(--spacing-2xl);
        gap: var(--spacing-xl);
        transform: translateX(100%);
        transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid rgba(255, 107, 53, 0.1);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: var(--font-size-xl);
    }

    .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(7px, -6px);
    }

    .hero-visual {
        height: 400px;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

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

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

    .about-stats {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--font-size-2xl);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-visual {
        height: 350px;
    }

    .project-info {
        padding: var(--spacing-lg);
    }

    .project-title {
        font-size: var(--font-size-xl);
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }
}

/* ============================================
   SHADER PREVIEW & UTILITIES
   ============================================ */
#shaderContainer {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#heroShaderCanvas {
    width: 100% !important;
    height: 100% !important;
    z-index: 2;
}

.code-overlay {
    position: absolute;
    top: 40%;
    left: 0;
    transform: translate(0, -50%);
    width: 48%;
    max-width: 600px;
    height: 600px;
    max-height: 66%;
    background: rgba(13, 17, 23, 0.95);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    z-index: 20;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    pointer-events: auto;
    display: flex;
    flex-direction: column;
}

.code-overlay.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translate(-20px, -50%) scale(0.95);
}

.editor-wrapper {
    flex: 1;
    width: 100%;
    overflow: hidden;
    position: relative;
    background: rgba(0, 0, 0, 0.3);
}

#shaderEditor,
#highlighting {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0 !important;
    border: none !important;
    padding: 20px !important;
    font-family: 'JetBrains Mono', 'Consolas', monospace !important;
    font-size: 11px !important;
    line-height: 1.6 !important;
    white-space: pre !important;
    word-wrap: normal !important;
    tab-size: 4 !important;
    box-sizing: border-box !important;
}

#shaderEditor {
    overflow: auto;
    z-index: 2;
    background: transparent;
    color: transparent;
    caret-color: #fff;
    resize: none;
    outline: none;
    -webkit-text-fill-color: transparent;
}

#highlighting {
    z-index: 1;
    pointer-events: none;
    background: transparent !important;
    color: #c9d1d9;
    overflow: hidden !important;
}

/* macOS-style Close Button */
.macos-close-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.macos-close-btn svg {
    opacity: 0;
    width: 6px;
    height: 6px;
    stroke: #8b0000;
}

.macos-close-btn:hover svg {
    opacity: 1;
}

/* Shader Controls */
.shader-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-regenerate {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 4px;
    color: #ff6b35;
    font-size: 11px;
    cursor: pointer;

}

.code-header-simple {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    flex-shrink: 0;
}

#highlighting-content .token.comment {
    color: #6a737d;
}

#highlighting-content .token.keyword {
    color: #f97583;
}

#highlighting-content .token.function {
    color: #b392f0;
}

#highlighting-content .token.number {
    color: #79b8ff;
}

#highlighting-content .token.operator {
    color: #ffab70;
}

#highlighting-content .token.punctuation {
    color: #e1e4e8;
}

#highlighting-content .token.string {
    color: #9ecbff;
}