/* ========================================
   ROOT VARIABLES & RESET
======================================== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    --error: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, rgba(6, 182, 212, 0.4) 100%);
    
    /* Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Border */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(99, 102, 241, 0.5);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
}

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

/* ========================================
   CUSTOM CURSOR
======================================== */
.cursor {
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10001;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease;
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
}

body:hover .cursor {
    opacity: 1;
}

.cursor.hover {
    width: 20px;
    height: 20px;
    background: var(--secondary);
}

.cursor-follower.hover {
    width: 60px;
    height: 60px;
    border-color: var(--secondary);
}

/* ========================================
   PARTICLE BACKGROUND
======================================== */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

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

/* ========================================
   NAVIGATION
======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    height: 70px;
    border-bottom-color: var(--border-color);
    background: rgba(10, 10, 15, 0.95);
}

.nav-brand .logo-text {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 30px;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
}

.lang-btn {
    background: none;
    border: none;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    transition: color var(--transition-fast);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--primary-light);
}

.lang-btn.active {
    color: var(--primary-light);
}

.lang-divider {
    color: var(--border-color);
    font-size: 0.75rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

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

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    flex-direction: column;
    gap: 8px;
    z-index: 999;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-normal);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 16px;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.mobile-link:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

/* ========================================
   BUTTONS
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-3px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1rem;
}

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

/* ========================================
   HERO SECTION
======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 48px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    animation: backgroundPulse 15s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-5%, -5%) rotate(5deg); }
}

.hero-content {
    flex: 1;
    max-width: 700px;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px 8px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.pulse {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    position: relative;
}

.pulse::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: var(--success);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    50% { transform: translate(-50%, -50%) scale(2.5); opacity: 0; }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .line {
    display: block;
    overflow: hidden;
}

.hero-title .word {
    display: inline-block;
    animation: slideUp 0.8s ease forwards;
    opacity: 0;
    transform: translateY(100%);
}

.hero-title .line:nth-child(1) .word {
    animation-delay: 0.2s;
}

.hero-title .line:nth-child(2) .word {
    animation-delay: 0.4s;
}

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

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

.typewriter-container {
    font-size: 1.5rem;
    margin-bottom: 24px;
    height: 40px;
    display: flex;
    align-items: center;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

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

.typewriter {
    color: var(--secondary);
    font-weight: 600;
    margin-left: 0.3em;
}

.typewriter-cursor {
    color: var(--primary);
    animation: blink 1s infinite;
}

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

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.8s forwards;
    opacity: 0;
}

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

.hero-description,
.hero-badge {
    transform: translateY(20px);
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease 1s forwards;
    opacity: 0;
    transform: translateY(20px);
}

.hero-stats {
    display: flex;
    gap: 48px;
    animation: fadeInUp 0.8s ease 1.2s forwards;
    opacity: 0;
    transform: translateY(20px);
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.code-window {
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: floatAnimation 6s ease-in-out infinite;
    max-width: 500px;
    width: 100%;
}

@keyframes floatAnimation {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.window-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

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

.window-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.btn-close { background: #ff5f56; }
.btn-minimize { background: #ffbd2e; }
.btn-maximize { background: #27ca3f; }

.window-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.code-content {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
}

.code-keyword { color: #c678dd; }
.code-variable { color: #e5c07b; }
.code-property { color: #e06c75; }
.code-string { color: #98c379; }
.code-function { color: #61afef; }
.code-this { color: #e06c75; font-style: italic; }

/* Skills Highlight Card */
.skills-highlight {
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: floatAnimation 6s ease-in-out infinite;
    max-width: 420px;
    width: 100%;
    padding: 28px;
}

.skills-highlight-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skills-highlight-header i {
    color: var(--primary-light);
    font-size: 1.1rem;
}

.skills-highlight-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.skill-highlight-info {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 130px;
    flex-shrink: 0;
}

.skill-highlight-info i {
    color: var(--primary-light);
    font-size: 1rem;
    width: 18px;
    text-align: center;
}

.skill-highlight-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.skill-highlight-bar-wrap {
    flex: 1;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 99px;
    overflow: hidden;
}

.skill-highlight-bar {
    height: 100%;
    width: calc(var(--years) / var(--max) * 100%);
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 99px;
}

.skill-highlight-years {
    font-size: 0.78rem;
    color: var(--text-muted);
    width: 36px;
    text-align: right;
    flex-shrink: 0;
}

/* Floating Icons */
.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    font-size: 1.5rem;
    backdrop-filter: blur(10px);
    animation: float 4s ease-in-out infinite;
}

.floating-icon i {
    color: var(--primary-light);
}

.icon-1 { top: 5%; left: 10%; animation-delay: 0s; }
.icon-2 { top: 20%; right: 5%; animation-delay: 0.5s; }
.icon-3 { bottom: 30%; left: 5%; animation-delay: 1s; }
.icon-4 { bottom: 10%; right: 15%; animation-delay: 1.5s; }
.icon-5 { top: 40%; left: -5%; animation-delay: 2s; }
.icon-6 { top: 60%; right: 0%; animation-delay: 2.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: fadeIn 1s ease 1.5s forwards;
    opacity: 0;
}

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

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    position: relative;
}

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

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.5; transform: translateX(-50%) translateY(12px); }
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ========================================
   SECTION STYLES
======================================== */
section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 1;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.avatar-graphic {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-ring {
    position: absolute;
    border: 2px solid var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: ringPulse 3s ease-in-out infinite;
}

.avatar-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    animation-delay: 0s;
}

.avatar-ring:nth-child(2) {
    width: 130%;
    height: 130%;
    animation-delay: 0.5s;
}

.avatar-ring:nth-child(3) {
    width: 160%;
    height: 160%;
    animation-delay: 1s;
}

@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.05); opacity: 0.5; }
}

.avatar-graphic i {
    font-size: 4rem;
    color: var(--primary);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient-primary);
    padding: 24px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-glow);
}

.experience-badge .years {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
}

.experience-badge .text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
}

.about-text h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.highlight {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all var(--transition-normal);
}

.highlight:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.highlight i {
    font-size: 1.5rem;
    color: var(--primary);
}

.highlight h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.highlight p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* ========================================
   SKILLS SECTION
======================================== */
.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 32px;
    transition: all var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.category-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.category-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.skill-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary-light);
}

.skill-name {
    font-size: 0.95rem;
    font-weight: 500;
    flex: 1;
}

.skill-level {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 99px;
    letter-spacing: 0.03em;
    flex-shrink: 0;
}

.level-expert {
    background: rgba(99, 179, 237, 0.15);
    color: #63b3ed;
    border: 1px solid rgba(99, 179, 237, 0.3);
}

.level-proficient {
    background: rgba(104, 211, 145, 0.12);
    color: #68d391;
    border: 1px solid rgba(104, 211, 145, 0.28);
}

.level-familiar {
    background: rgba(246, 173, 85, 0.12);
    color: #f6ad55;
    border: 1px solid rgba(246, 173, 85, 0.28);
}

/* ========================================
   EXPERIENCE SECTION
======================================== */
.experience {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
}

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

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

.timeline-marker {
    position: absolute;
    left: -8px;
    top: 0;
}

.marker-dot {
    width: 18px;
    height: 18px;
    background: var(--bg-primary);
    border: 3px solid var(--primary);
    border-radius: 50%;
    position: relative;
}

.marker-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all var(--transition-normal);
}

.timeline-content:hover {
    border-color: var(--primary);
    transform: translateX(10px);
    box-shadow: var(--shadow-glow);
}

.timeline-date {
    display: inline-block;
    padding: 6px 16px;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}

.timeline-date--education {
    background: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
}

.timeline-type-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #2dd4bf;
    border: 1px solid rgba(45, 212, 191, 0.35);
    background: rgba(45, 212, 191, 0.08);
    border-radius: 99px;
    padding: 2px 10px;
    margin-left: 8px;
    vertical-align: middle;
}

.timeline-item:has(.timeline-date--education) .marker-dot {
    border-color: #0d9488;
}

.timeline-item:has(.timeline-date--education) .marker-dot::before {
    background: #0d9488;
}

.timeline-item:has(.timeline-date--education) .timeline-content:hover {
    border-color: #0d9488;
    box-shadow: 0 0 30px rgba(13, 148, 136, 0.2);
}

.timeline-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-company {
    font-size: 1rem;
    color: var(--primary-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.timeline-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.tag {
    padding: 6px 14px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ========================================
   PROJECTS SECTION
======================================== */
.projects {
    background: var(--bg-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.project-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
}

.project-card.featured .project-image {
    height: 100%;
}

.project-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.placeholder-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.project-placeholder i {
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.5;
    z-index: 1;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    opacity: 0;
    transition: all var(--transition-normal);
}

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all var(--transition-normal);
    transform: translateY(20px);
}

.project-card:hover .project-link {
    transform: translateY(0);
}

.project-link:hover {
    background: var(--primary);
    border-color: var(--primary);
}

.project-content {
    padding: 28px;
}

.project-category {
    font-size: 0.8rem;
    color: var(--primary-light);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 12px 0;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.project-tech span {
    padding: 6px 14px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.projects-cta {
    text-align: center;
    margin-top: 60px;
}

/* ========================================
   ACHIEVEMENTS SECTION
======================================== */
.achievements {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.achievement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

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

/* --- Visualization area --- */
.achievement-visual {
    height: 140px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.ach-viz {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 24px;
}

/* Architecture viz */
.ach-viz--arch {
    gap: 12px;
}

.mono-box {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 14px;
    background: var(--bg-secondary);
    white-space: nowrap;
}

.ach-arrow {
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.micro-nodes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.micro-node {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 6px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--primary-light);
    text-align: center;
    white-space: nowrap;
}

.k8s-badge {
    background: rgba(6, 182, 212, 0.1);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--secondary);
    grid-column: span 2;
    text-align: center;
}

/* AI viz */
.ach-viz--ai {
    position: relative;
    flex-direction: column;
}

.ai-nodes {
    display: flex;
    align-items: center;
    gap: 0;
    position: relative;
    z-index: 1;
    width: 100%;
    justify-content: center;
}

.ai-lines {
    position: absolute;
    width: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.ai-node {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    position: relative;
    z-index: 2;
}

.ai-core {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 18px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.2));
    border: 1px solid rgba(139, 92, 246, 0.5);
    color: var(--primary-light);
    font-size: 0.65rem;
    font-weight: 700;
    position: relative;
    z-index: 2;
    margin: 0 32px;
}

.ai-core i {
    font-size: 1.3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-pulse {
    position: absolute;
    inset: -4px;
    border-radius: 14px;
    border: 1px solid rgba(139, 92, 246, 0.3);
    animation: pulseBorder 2s ease-in-out infinite;
}

@keyframes pulseBorder {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.04); }
}

/* Pipeline viz */
.ach-viz--pipeline {
    flex-direction: column;
}

.pipeline-steps {
    display: flex;
    align-items: center;
    gap: 0;
}

.pipe-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    font-size: 0.62rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 58px;
    text-align: center;
}

.pipe-step i {
    font-size: 1rem;
    color: var(--primary-light);
}

.pipe-step--ai {
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(6,182,212,0.1));
    border-color: rgba(99,102,241,0.4);
    color: var(--primary-light);
}

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

.pipe-connector {
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    flex-shrink: 0;
    position: relative;
}

.pipe-connector::after {
    content: '';
    position: absolute;
    right: -4px;
    top: -3px;
    border: 4px solid transparent;
    border-left-color: var(--secondary);
}

/* Data viz */
.ach-viz--data {
    padding: 16px 28px;
    position: relative;
}

.data-chart {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 8px;
    position: relative;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 70px;
}

.chart-bar {
    flex: 1;
    height: var(--h);
    background: rgba(99, 102, 241, 0.25);
    border-radius: 4px 4px 0 0;
    border: 1px solid rgba(99, 102, 241, 0.35);
    transition: height 1s ease;
}

.chart-bar--accent {
    background: linear-gradient(180deg, rgba(6,182,212,0.5), rgba(99,102,241,0.3));
    border-color: rgba(6, 182, 212, 0.5);
}

.chart-trend {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    pointer-events: none;
    opacity: 0.7;
}

/* --- Card content --- */
.achievement-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.achievement-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(6,182,212,0.15));
    border: 1px solid rgba(99,102,241,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary-light);
}

.achievement-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.achievement-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

@media (max-width: 768px) {
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   CONTACT SECTION
======================================== */
.contact {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    position: relative;
    z-index: 1;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: 32px;
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

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

.contact-text a,
.contact-text span {
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.contact-text a:hover {
    color: var(--primary);
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.25rem;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-5px);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: all var(--transition-normal);
    outline: none;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: 0;
    left: 12px;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--primary);
    background: var(--bg-card);
    padding: 0 8px;
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.form-group input:focus ~ .focus-border,
.form-group textarea:focus ~ .focus-border {
    width: 100%;
}

/* ========================================
   FOOTER
======================================== */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 8px;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-normal);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom i {
    color: var(--error);
}

.footer-bottom i.fa-coffee {
    color: var(--accent);
}

/* ========================================
   REVEAL ANIMATIONS
======================================== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.reveal-children > * {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-children.active > * {
    opacity: 1;
    transform: translateY(0);
}

.reveal-children.active > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-children.active > *:nth-child(2) { transition-delay: 0.2s; }
.reveal-children.active > *:nth-child(3) { transition-delay: 0.3s; }
.reveal-children.active > *:nth-child(4) { transition-delay: 0.4s; }
.reveal-children.active > *:nth-child(5) { transition-delay: 0.5s; }

/* ========================================
   RESPONSIVE DESIGN
======================================== */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        padding: 120px 24px 60px;
        text-align: center;
    }

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

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

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

    .hero-visual {
        margin-top: 60px;
    }

    .floating-icons {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

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

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

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

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

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

    .navbar {
        padding: 0 24px;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .typewriter-container {
        font-size: 1.2rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .stat {
        text-align: center;
    }

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

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

    .timeline::before {
        left: 8px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-marker {
        left: 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    /* Hide custom cursor on mobile */
    .cursor,
    .cursor-follower {
        display: none;
    }

    body {
        cursor: auto;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 16px 40px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-large {
        padding: 16px 28px;
    }

    .experience-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 24px;
        display: inline-block;
    }

    .about-text {
        text-align: center;
    }

    .contact-form-wrapper {
        padding: 24px;
    }
}

/* ========================================
   UTILITY CLASSES
======================================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow {
    box-shadow: var(--shadow-glow);
}