/* ================================================================
   DESIGN TOKENS & CSS VARIABLES
   ================================================================ */
:root {
    /* Color Palette - Deep Space Violet Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: rgba(26, 26, 46, 0.6);
    --bg-card-hover: rgba(36, 36, 66, 0.8);
    --bg-glass: rgba(16, 16, 28, 0.85);
    
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6c6c88;
    
    --accent-primary: #7c3aed;
    --accent-secondary: #a855f7;
    --accent-tertiary: #c084fc;
    --accent-glow: rgba(124, 58, 237, 0.4);
    --accent-glow-light: rgba(168, 85, 247, 0.2);
    
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #c084fc 100%);
    --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #3b82f6 50%, #06b6d4 100%);
    --gradient-card: linear-gradient(145deg, rgba(124,58,237,0.1) 0%, rgba(168,85,247,0.05) 100%);
    
    --border-subtle: rgba(124, 58, 237, 0.15);
    --border-hover: rgba(124, 58, 237, 0.4);
    
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent-primary);
    color: white;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================================================
   CURSOR GLOW EFFECT
   ================================================================ */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow-light) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ================================================================
   PARTICLE CANVAS
   ================================================================ */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ================================================================
   NAVBAR
   ================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
    z-index: 1001;
}

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

.logo-text {
    color: var(--text-primary);
    transition: var(--transition-base);
}

.nav-logo:hover .logo-bracket {
    color: var(--accent-tertiary);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    position: relative;
    transition: var(--transition-base);
}

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

.nav-link.active {
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-tertiary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ================================================================
   SECTION COMMON STYLES
   ================================================================ */
.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-secondary);
    display: inline-block;
    margin-bottom: 12px;
    background: rgba(124, 58, 237, 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 16px;
    border-radius: var(--radius-full);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ================================================================
   SCROLL ANIMATIONS
   ================================================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* ================================================================
   HERO SECTION
   ================================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 120px 24px 80px;
    gap: 60px;
}

.hero-content {
    max-width: 640px;
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
    background: rgba(124, 58, 237, 0.08);
    font-size: 0.85rem;
    color: var(--accent-tertiary);
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 24px;
}

.hero-greeting {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.hero-name {
    display: flex;
    gap: 12px;
}

.name-word {
    font-size: clamp(2.8rem, 6vw, 4.2rem);
    font-weight: 900;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
    line-height: 1.1;
}

.hero-role {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-top: 4px;
}

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

.typing-cursor {
    color: var(--accent-primary);
    animation: blink 1s step-end infinite;
    font-weight: 300;
}

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

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

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

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: 0.5s;
}

.btn-primary:hover::after {
    left: 100%;
}

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

.btn-outline:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--accent-secondary);
    transform: translateY(-2px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.stat-plus {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
}

/* Hero Visual (Code Window) */
.hero-visual {
    flex: 1;
    max-width: 520px;
}

.code-window {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 40px rgba(124, 58, 237, 0.1);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: var(--transition-slow);
}

.code-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.6),
                0 0 50px rgba(124, 58, 237, 0.15);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.code-dots {
    display: flex;
    gap: 6px;
}

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

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.code-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.code-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-body pre {
    margin: 0;
}

.code-keyword { color: #c084fc; }
.code-type { color: #67e8f9; }
.code-prop { color: #a5b4fc; }
.code-string { color: #86efac; }
.code-var { color: #fbbf24; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: float-bounce 2s ease-in-out infinite;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--border-hover);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

@keyframes float-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* ================================================================
   ABOUT SECTION
   ================================================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-intro {
    font-size: 1.15rem !important;
    color: var(--text-primary) !important;
    font-weight: 500;
}

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

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 32px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.highlight-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.highlight-item i {
    color: var(--accent-secondary);
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.info-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(124, 58, 237, 0.1);
}

.info-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(124, 58, 237, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.2rem;
    color: var(--accent-secondary);
    transition: var(--transition-base);
}

.info-card:hover .card-icon {
    background: rgba(124, 58, 237, 0.2);
    transform: scale(1.1);
}

.info-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.info-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ================================================================
   SKILLS SECTION
   ================================================================ */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-base);
}

.skill-category:hover {
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.08);
}

.category-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

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

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(124, 58, 237, 0.06);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: var(--transition-base);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.skill-tag:hover {
    border-color: var(--accent-primary);
    color: var(--accent-tertiary);
    background: rgba(124, 58, 237, 0.12);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
}

.skill-tag img {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.skill-tag i {
    font-size: 0.9rem;
}

.skill-bar {
    display: none;
}

.skill-tag.concept {
    background: rgba(168, 85, 247, 0.08);
    border-color: rgba(168, 85, 247, 0.2);
}

.skill-tag.concept:hover {
    background: rgba(168, 85, 247, 0.18);
    border-color: var(--accent-secondary);
}

/* ================================================================
   PROJECTS SECTION
   ================================================================ */
.project-featured {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 64px;
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.project-featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-hero);
}

.project-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: rgba(124, 58, 237, 0.12);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--accent-tertiary);
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid var(--border-subtle);
}

.project-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.project-description-card {
    margin-bottom: 24px;
}

.project-description-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.project-description-card strong {
    color: var(--accent-tertiary);
    font-weight: 600;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-pill {
    padding: 6px 14px;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--accent-tertiary);
    font-weight: 500;
    font-family: var(--font-mono);
    transition: var(--transition-base);
}

.tech-pill:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: var(--accent-primary);
}

.tech-pill.small {
    padding: 4px 10px;
    font-size: 0.75rem;
}

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

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--border-hover);
    color: var(--accent-tertiary);
    transition: var(--transition-base);
}

.project-link:hover {
    background: rgba(124, 58, 237, 0.15);
    transform: translateY(-2px);
}

/* Project Mockup */
.project-mockup {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    transition: var(--transition-slow);
}

.project-featured:hover .project-mockup {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.mockup-dots {
    display: flex;
    gap: 5px;
}

.mockup-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    opacity: 0.4;
}

.mockup-dots span:nth-child(1) { background: #ff5f57; opacity: 0.8; }
.mockup-dots span:nth-child(2) { background: #febc2e; opacity: 0.8; }
.mockup-dots span:nth-child(3) { background: #28c840; opacity: 0.8; }

.mockup-url {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    flex: 1;
    text-align: center;
}

.mockup-body {
    display: flex;
    height: 220px;
}

.mockup-sidebar {
    width: 50px;
    background: rgba(255, 255, 255, 0.02);
    border-right: 1px solid var(--border-subtle);
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mockup-nav-item {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
}

.mockup-nav-item.active {
    background: var(--accent-primary);
    box-shadow: 0 0 8px var(--accent-glow);
}

.mockup-content {
    flex: 1;
    padding: 12px;
}

.mockup-card-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.mockup-stat-card {
    flex: 1;
    height: 40px;
    border-radius: 6px;
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid rgba(124, 58, 237, 0.1);
    animation: shimmer-card 3s ease-in-out infinite;
}

.mockup-stat-card.c1 { animation-delay: 0s; }
.mockup-stat-card.c2 { animation-delay: 0.3s; }
.mockup-stat-card.c3 { animation-delay: 0.6s; }

@keyframes shimmer-card {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.mockup-table {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mockup-table-header {
    height: 14px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.06);
}

.mockup-table-row {
    height: 20px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-base);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(124, 58, 237, 0.12);
}

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

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.project-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(124, 58, 237, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-secondary);
    font-size: 1.2rem;
}

.project-card-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.project-card-links a:hover {
    color: var(--accent-secondary);
    transform: translateY(-2px);
}

.project-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.project-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

/* ================================================================
   EXPERIENCE & EDUCATION (TIMELINE)
   ================================================================ */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-primary), var(--border-subtle));
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

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

.timeline-marker {
    position: absolute;
    left: -60px;
    top: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    z-index: 2;
    transition: var(--transition-base);
}

.education-marker {
    background: rgba(124, 58, 237, 0.15);
    border: 2px solid var(--accent-primary);
    color: var(--accent-secondary);
}

.work-marker {
    background: rgba(59, 130, 246, 0.15);
    border: 2px solid #3b82f6;
    color: #60a5fa;
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition-base);
}

.timeline-item:hover .timeline-content {
    border-color: var(--border-hover);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.08);
}

.timeline-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    background: rgba(124, 58, 237, 0.12);
    color: var(--accent-tertiary);
    border: 1px solid var(--border-subtle);
}

.timeline-badge.work {
    background: rgba(59, 130, 246, 0.12);
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.2);
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-content h4 {
    font-size: 0.95rem;
    color: var(--accent-tertiary);
    font-weight: 500;
    margin-bottom: 8px;
}

.timeline-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.timeline-date i {
    font-size: 0.75rem;
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ================================================================
   CONTACT SECTION
   ================================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.contact-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(124, 58, 237, 0.12);
}

.contact-card:hover::before {
    transform: scaleX(1);
}

.contact-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: rgba(124, 58, 237, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent-secondary);
    transition: var(--transition-base);
}

.contact-card:hover .contact-icon {
    transform: scale(1.1) rotate(-5deg);
    background: rgba(124, 58, 237, 0.2);
}

.contact-icon.linkedin { color: #0a66c2; background: rgba(10, 102, 194, 0.12); }
.contact-icon.github { color: var(--text-primary); background: rgba(255, 255, 255, 0.08); }

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.contact-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    word-break: break-all;
}

.contact-action {
    font-size: 0.8rem;
    color: var(--accent-tertiary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-base);
}

.contact-card:hover .contact-action {
    gap: 10px;
}

/* ================================================================
   FOOTER
   ================================================================ */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-subtle);
    position: relative;
    z-index: 1;
    background: linear-gradient(to top, rgba(10, 10, 15, 0.95), transparent);
}

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

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.heart {
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: var(--accent-primary);
    color: var(--accent-tertiary);
    transform: translateY(-3px);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ================================================================
   RESPONSIVE DESIGN
   ================================================================ */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 24px 80px;
    }

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

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

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

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

    .code-window {
        transform: none;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .project-featured {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 16px;
        transform: translateX(100%);
        transition: var(--transition-base);
        z-index: 1000;
    }

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

    .nav-link {
        font-size: 1.2rem;
        padding: 12px 24px;
    }

    .nav-toggle {
        display: flex;
    }

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

    .hero-role {
        justify-content: center;
        flex-wrap: wrap;
    }

    .name-word {
        font-size: clamp(2rem, 8vw, 3.2rem);
    }

    .hero-stats {
        flex-wrap: wrap;
    }

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

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

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

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

    .project-featured {
        padding: 24px;
    }

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

    .timeline {
        padding-left: 40px;
    }

    .timeline::before {
        left: 14px;
    }

    .timeline-marker {
        left: -40px;
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 16px 60px;
    }

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

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

    .stat-divider {
        display: none;
    }

    .hero-stats {
        gap: 16px;
    }

    .code-window {
        display: none;
    }
}

/* ================================================================
   LOADING SCREEN
   ================================================================ */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.loader-logo {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    animation: loader-pulse 1.5s ease-in-out infinite;
}

@keyframes loader-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.96); }
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: rgba(124, 58, 237, 0.15);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.loader-progress {
    width: 0%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    animation: loader-fill 1.8s ease-in-out forwards;
}

@keyframes loader-fill {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

.loader-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

/* ================================================================
   HERO SUBTITLE
   ================================================================ */
.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent-tertiary);
    margin-top: 4px;
    letter-spacing: -0.3px;
}

/* ================================================================
   GHOST BUTTON
   ================================================================ */
.btn-ghost {
    color: var(--text-muted);
    background: transparent;
    padding: 14px 20px;
    font-weight: 500;
}

.btn-ghost:hover {
    color: var(--accent-tertiary);
    background: rgba(124, 58, 237, 0.08);
    transform: translateY(-2px);
}

.btn-ghost i {
    font-size: 0.9rem;
}

/* ================================================================
   BACK TO TOP BUTTON
   ================================================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}