/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Chroma Green Theme - Glossy & Modern */
    --chroma-green: #00ff88;
    --chroma-green-dark: #00cc6a;
    --chroma-green-darker: #009951;
    --chroma-green-light: #33ffaa;
    --chroma-green-glow: rgba(0, 255, 136, 0.5);
    
    /* Dark Theme */
    --dark-bg: #0a0e1a;
    --dark-surface: #111827;
    --dark-elevated: #1f2937;
    --dark-border: #2d3748;
    
    /* Accent Colors */
    --accent-cyan: #00f5ff;
    --accent-purple: #8b5cf6;
    --accent-blue: #3b82f6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients */
    --gradient-chroma: linear-gradient(135deg, #00ff88 0%, #00f5ff 100%);
    --gradient-chroma-vertical: linear-gradient(180deg, #00ff88 0%, #00cc6a 100%);
    --gradient-dark: linear-gradient(135deg, #0a0e1a 0%, #1f2937 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Effects */
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(0, 255, 136, 0.3);
    --shadow-glow-lg: 0 0 80px rgba(0, 255, 136, 0.4);
    
    /* Glass Morphism */
    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Legacy support */
    --primary-color: #00ff88;
    --secondary-color: #00f5ff;
    --dark-color: #0a0e1a;
    --light-color: #f9fafb;
    --success: #00ff88;
}

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

html {
    scroll-behavior: smooth;
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--gray-100);
    background: var(--dark-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
    width: 100%;
}

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

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

ul {
    list-style: none;
}

/* ===========================
   Utility Classes
   =========================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--light-color);
}

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

.bg-dark {
    background-color: var(--dark-color);
    color: var(--white);
}

.bg-primary {
    background: var(--gradient-mixed);
    color: var(--white);
    position: relative;
}

.bg-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(0, 230, 118, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 176, 255, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

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

.highlight {
    color: var(--primary-color);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    padding: 0.8rem 0;
    margin: 0;
    box-shadow: 
        0 4px 30px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(0, 255, 136, 0.1);
    border-bottom: 1px solid rgba(0, 255, 136, 0.2);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
    display: flex;
    align-items: center;
}

.logo-image {
    height: 45px;
    width: auto;
    display: block;
}

.logo-text {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--white);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu a:hover {
    color: var(--chroma-green);
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

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

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

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--dark-color);
    min-width: 250px;
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-menu a:hover {
    background: rgba(0, 255, 136, 0.1);
    color: var(--chroma-green);
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.4);
    padding-left: 2rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */
.hero-video {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        radial-gradient(circle at 30% 50%, rgba(0, 255, 136, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0a0e1a 100%);
    overflow: hidden;
    margin: 0;
    padding: 0;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}

.hero-youtube-video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 115%;
    height: 115%;
    border: none;
    z-index: 0;
    min-width: 115%;
    min-height: 115%;
}

.hero-video::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    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;
    z-index: 0;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 5;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 
        0 0 20px rgba(0, 255, 136, 0.3),
        0 0 40px rgba(0, 255, 136, 0.2),
        2px 2px 8px rgba(0, 0, 0, 0.5);
    letter-spacing: -1px;
    text-transform: uppercase;
    font-style: normal;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 300;
    letter-spacing: 0.5px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--white);
    animation: bounce 2s infinite;
    z-index: 5;
}

.scroll-indicator i {
    font-size: 2rem;
    color: var(--white);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

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

.btn-white:hover {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
}

.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--white);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

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

.section-header.light .section-description {
    color: rgba(255, 255, 255, 0.8);
}

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

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-mixed);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    box-shadow: 0 5px 20px rgba(74, 20, 140, 0.3);
    position: relative;
}

.service-icon::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: var(--gradient-chroma);
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover .service-icon::after {
    opacity: 0.3;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.service-link:hover {
    gap: 1rem;
}

/* ===========================
   About Section
   =========================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.features-list {
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--gray);
    font-size: 0.95rem;
    margin: 0;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
}

/* ===========================
   Stats Section
   =========================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

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

.stat-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-suffix {
    font-size: 2.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--gray);
    font-weight: 500;
}

/* ===========================
   Portfolio Grid
   =========================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    aspect-ratio: 16/10;
    background: var(--gray-light);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

/* ===========================
   Advantages Grid
   =========================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 255, 136, 0.4);
    transform: translateY(-5px);
}

.advantage-card i {
    font-size: 3rem;
    color: var(--chroma-green);
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.5));
}

.advantage-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.advantage-card p {
    color: var(--gray-300);
    line-height: 1.6;
}

/* ===========================
   Technology Tabs
   =========================== */
.tech-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--gray-light);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    color: var(--dark-color);
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.tab-content {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tech-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.tech-list i {
    color: var(--success);
    font-size: 1.2rem;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--dark-bg);
    color: var(--gray-100);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(0, 255, 136, 0.2);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-chroma);
    opacity: 0.5;
}

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

.footer-column h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--dark-color);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition);
        align-items: flex-start;
    }

    .nav-menu.active {
        left: 0;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .section-padding {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .stat-number {
        font-size: 3rem;
    }

    .tab-buttons {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }
}