/* CSS Custom Properties */
:root {
    /* Colors */
    --primary-color: #00ff88;
    --secondary-color: #00d4ff;
    --accent-color: #ff6b6b;
    --warning-color: #ffeb3b;

    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
    --secondary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-gradient: linear-gradient(135deg, #ff6b6b 0%, #ffa726 100%);
    --tech-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);

    /* Dark Theme */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(255, 255, 255, 0.08);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --text-accent: var(--primary-color);

    /* Border & Effects */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(0, 255, 136, 0.3);
    --shadow-primary: 0 8px 32px rgba(0, 255, 136, 0.15);
    --shadow-secondary: 0 8px 32px rgba(0, 0, 0, 0.3);

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

    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 20px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Responsive */
    --max-width: 1200px;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

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

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

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: var(--bg-primary);
}

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

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease;
}

.loading-container {
    text-align: center;
    color: var(--text-primary);
}

.code-loader {
    margin-bottom: 20px;
}

.code-line {
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 8px auto;
    border-radius: 2px;
    animation: code-load 1.5s ease-in-out infinite;
    display: block;
}

.code-line:nth-child(2) {
    animation-delay: 0.3s;
    width: 80px;
}

.code-line:nth-child(3) {
    animation-delay: 0.6s;
    width: 40px;
}

@keyframes code-load {

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

    50% {
        opacity: 1;
        transform: scaleX(1.2);
    }
}

.loading-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    animation: loading-blink 1s ease-in-out infinite;
}

@keyframes loading-blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0.5;
    }
}

/* Animated Background */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 136, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: particle-float 8s ease-in-out infinite;
    box-shadow: 0 0 20px var(--primary-color);
}

.particle:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    left: 20%;
    animation-delay: 1s;
    animation-duration: 10s;
}

.particle:nth-child(3) {
    left: 30%;
    animation-delay: 2s;
    animation-duration: 12s;
}

.particle:nth-child(4) {
    left: 60%;
    animation-delay: 1.5s;
    animation-duration: 9s;
}

.particle:nth-child(5) {
    left: 80%;
    animation-delay: 0.5s;
    animation-duration: 11s;
}

.particle:nth-child(6) {
    left: 90%;
    animation-delay: 3s;
    animation-duration: 7s;
}

@keyframes particle-float {

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

    10% {
        opacity: 1;
        transform: translateY(90vh) scale(1);
    }

    90% {
        opacity: 1;
        transform: translateY(-10vh) scale(1);
    }
}

.tech-circles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.tech-circle {
    position: absolute;
    border: 2px solid rgba(0, 255, 136, 0.1);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.tech-circle:nth-child(1) {
    width: 200px;
    height: 200px;
    top: 20%;
    left: 10%;
    animation-duration: 15s;
}

.tech-circle:nth-child(2) {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 20%;
    animation-duration: 25s;
    animation-direction: reverse;
}

.tech-circle:nth-child(3) {
    width: 100px;
    height: 100px;
    bottom: 10%;
    left: 50%;
    animation-duration: 20s;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Navigation */
.navbar {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-smooth);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(30px);
    border-bottom-color: var(--border-accent);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    font-family: var(--font-mono);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-smooth);
}

.brand-bracket {
    color: var(--primary-color);
    font-weight: 400;
}

.brand-name {
    color: var(--text-primary);
    margin: 0 4px;
}

.navbar-brand:hover {
    color: var(--text-primary);
    transform: scale(1.05);
}

.navbar-toggler {
    border: none;
    padding: 0;
    width: 30px;
    height: 30px;
    position: relative;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.hamburger {
    width: 25px;
    height: 20px;
    position: relative;
    cursor: pointer;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--primary-color);
    border-radius: 1px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hamburger span:nth-child(1) {
    top: 0;
}

.hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger span:nth-child(3) {
    bottom: 0;
}

.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);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-smooth);
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 8px;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 400;
}

.nav-text {
    transition: all var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(0, 255, 136, 0.1);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
}

.hero-content {
    z-index: 2;
}

.hero-greeting {
    margin-bottom: 1rem;
}

.greeting-text {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-line {
    display: block;
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, 2rem);
    font-weight: 600;
    margin-bottom: 2rem;
    font-family: var(--font-mono);
}

.subtitle-bracket {
    color: var(--secondary-color);
    font-weight: 400;
}

.subtitle-text {
    color: var(--text-primary);
    margin: 0 8px;
}

.typing-text::after {
    content: '|';
    color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.highlight {
    color: var(--primary-color);
    font-weight: 600;
    position: relative;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 3rem;
}

.tech-tag {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

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

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 4rem;
}

.btn-primary-custom {
    background: var(--primary-gradient);
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    color: var(--bg-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-primary);
    position: relative;
    overflow: hidden;
}

.btn-primary-custom::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 0.6s;
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 255, 136, 0.4);
    color: var(--bg-primary);
}

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

.btn-secondary-custom {
    background: transparent;
    border: 2px solid var(--border-color);
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    transition: all var(--transition-smooth);
    backdrop-filter: blur(20px);
}

.btn-secondary-custom:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(0, 255, 136, 0.1);
    transform: translateY(-3px);
}

.hero-scroll {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.scroll-indicator {
    display: flex;
    align-items: center;
    gap: 15px;
}

.scroll-line {
    width: 30px;
    height: 2px;
    background: var(--primary-gradient);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {

    0%,
    100% {
        opacity: 0.5;
        transform: scaleX(1);
    }

    50% {
        opacity: 1;
        transform: scaleX(1.2);
    }
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-container {
    position: relative;
    max-width: 400px;
    width: 100%;
}

.profile-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    z-index: 2;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%) brightness(1.1);
}

.profile-border {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 3px solid;
    border-image: var(--primary-gradient) 1;
    border-radius: 50%;
    animation: profile-rotate 10s linear infinite;
    z-index: 1;
}

@keyframes profile-rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

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

.code-snippet {
    position: absolute;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
    backdrop-filter: blur(20px);
    animation: float-code 6s ease-in-out infinite;
}

.code-snippet.top-left {
    top: -20px;
    left: -40px;
    animation-delay: 0s;
}

.code-snippet.bottom-right {
    bottom: -20px;
    right: -40px;
    animation-delay: 3s;
}

.code-line {
    display: block;
    margin: 2px 0;
}

@keyframes float-code {

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

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

/* Section Styles */
.section-padding {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 0 auto;
    border-radius: 2px;
}

/* Glass Card Component */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.05), transparent);
    transition: left 0.6s;
}

.glass-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-primary);
}

.glass-card:hover::before {
    left: 100%;
}

/* Card Header */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-dots {
    display: flex;
    gap: 8px;
}

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

.dot.red {
    background: #ff5f57;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #28ca42;
}

.card-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.code-highlight {
    color: var(--primary-color);
    font-family: var(--font-mono);
    font-weight: 600;
    background: rgba(0, 255, 136, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--border-accent);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Skills Section */
.tech-section {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.02) 0%, rgba(0, 212, 255, 0.02) 100%);
    position: relative;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--border-accent);
}

.category-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    transition: all var(--transition-smooth);
}

.skill-item:hover {
    background: rgba(0, 255, 136, 0.05);
    transform: translateX(5px);
}

.skill-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: 8px;
    font-size: 1.2rem;
    color: var(--bg-primary);
    flex-shrink: 0;
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
    flex-grow: 1;
}

.skill-level {
    width: 80px;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.skill-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 3px;
    width: 0;
    transition: width 1.5s ease-out;
    position: relative;
}

.skill-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: skill-shine 2s ease-in-out infinite;
}

@keyframes skill-shine {
    0% {
        transform: translateX(-30px);
    }

    100% {
        transform: translateX(100px);
    }
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-smooth);
}

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

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

.service-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 1.5rem;
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: 12px;
    font-size: 1.5rem;
    color: var(--bg-primary);
    transition: all var(--transition-smooth);
}

.service-card:hover .service-icon {
    transform: rotateY(180deg);
}

.service-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.service-tech span {
    background: rgba(0, 255, 136, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Experience Section */
.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-gradient);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 21px;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    z-index: 2;
}

.timeline-date {
    position: absolute;
    left: -120px;
    top: 15px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.timeline-content {
    width: 100%;
}

.timeline-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

.timeline-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-primary);
}

.company-header {
    margin-bottom: 1rem;
}

.company-header h4 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.company-name {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
}

.timeline-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.timeline-tech span {
    background: rgba(0, 212, 255, 0.1);
    color: var(--secondary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Section */
.contact-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.05), transparent);
    transition: left 0.6s;
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-accent);
    box-shadow: var(--shadow-primary);
}

.contact-card:hover::before {
    left: 100%;
}

.contact-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: 16px;
    font-size: 1.8rem;
    color: var(--bg-primary);
    margin: 0 auto 1.5rem;
    transition: all var(--transition-smooth);
}

.contact-card:hover .contact-icon {
    transform: rotateY(360deg);
}

.contact-info h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-info a,
.contact-info span {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-smooth);
    font-weight: 500;
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 2rem;
}

.social-link {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.5rem;
    backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
}

.social-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: rgba(0, 255, 136, 0.1);
    transform: translateY(-5px) scale(1.1);
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animation Classes */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-up.animate {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1200px) {
    :root {
        --section-padding: 100px 0;
    }

    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media (max-width: 992px) {
    .timeline-container::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-item::before {
        left: 11px;
    }

    .timeline-date {
        left: -80px;
        writing-mode: horizontal-tb;
        text-orientation: initial;
        top: -30px;
    }

    .hero-section {
        text-align: center;
    }

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

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

    .navbar-nav {
        background: var(--bg-secondary);
        border-radius: 12px;
        padding: 1rem;
        margin-top: 1rem;
        border: 1px solid var(--border-color);
    }

    .nav-link {
        margin: 0;
        padding: 12px 16px;
        border-radius: 8px;
    }

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

    .hero-subtitle {
        font-size: 1.5rem;
    }

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

    .btn-primary-custom,
    .btn-secondary-custom {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

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

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

    .skills-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .timeline-date {
        position: static;
        margin-bottom: 1rem;
        text-align: left;
    }

    .timeline-item {
        padding-left: 0;
    }

    .timeline-container::before {
        display: none;
    }

    .timeline-item::before {
        display: none;
    }

    .code-snippet {
        display: none;
    }
}

@media (max-width: 576px) {
    .hero-description {
        font-size: 1rem;
    }

    .tech-tag {
        font-size: 0.8rem;
        padding: 6px 12px;
    }

    .glass-card {
        padding: 1.5rem;
    }

    .service-card {
        padding: 1.5rem;
    }

    .timeline-card {
        padding: 1.5rem;
    }

    .contact-card {
        padding: 1.5rem;
    }

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

    .social-links {
        gap: 15px;
    }

    .social-link {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    body {
        background: var(--bg-primary);
        color: var(--text-primary);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.3);
        --bg-glass: rgba(255, 255, 255, 0.15);
    }
}

/* Print styles */
@media print {

    .animated-bg,
    .navbar,
    .loading-overlay {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .glass-card {
        border: 1px solid #ccc;
        background: #f9f9f9;
    }
}

.navbar-nav .nav-link.active,
.navbar-nav .nav-link.show {
    color: #f9f9f9;
}