/* ===================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   =================================== */
:root {
    /* Colors */
    --color-cyan: #00f0ff;
    --color-violet: #6b0fff;
    --color-bg-dark: #0a0a0f;
    --color-bg-secondary: #151520;
    --color-bg-card: rgba(21, 21, 32, 0.6);
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0c8;
    --color-text-muted: #6b6b80;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-violet) 0%, var(--color-cyan) 100%);
    --gradient-radial: radial-gradient(circle at center, var(--color-cyan) 0%, transparent 70%);
    
    /* Shadows & Glows */
    --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.5), 0 0 40px rgba(0, 240, 255, 0.3);
    --glow-violet: 0 0 20px rgba(107, 15, 255, 0.5), 0 0 40px rgba(107, 15, 255, 0.3);
    --glow-mixed: 0 0 30px rgba(0, 240, 255, 0.4), 0 0 60px rgba(107, 15, 255, 0.4);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    /* Typography */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

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

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

/* ===================================
   TYPOGRAPHY
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

.gradient-text-alt {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

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

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-card);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    position: relative;
    transition: var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--color-cyan);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem var(--spacing-md) 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(107, 15, 255, 0.15) 0%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

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

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    animation: float 6s ease-in-out infinite;
}

.hero-image {
    width: 100%;
    height: auto;
    filter: drop-shadow(var(--glow-mixed));
    position: relative;
    z-index: 2;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: pulse 4s ease-in-out infinite;
    pointer-events: none;
}

.glow-orb-1 {
    width: 300px;
    height: 300px;
    background: rgba(0, 240, 255, 0.3);
    top: -50px;
    left: -50px;
    animation-delay: 0s;
}

.glow-orb-2 {
    width: 250px;
    height: 250px;
    background: rgba(107, 15, 255, 0.3);
    bottom: -50px;
    right: -50px;
    animation-delay: 2s;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-cyan), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: inline-block;
    letter-spacing: 1px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.6), 0 0 60px rgba(0, 240, 255, 0.4);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.1);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

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

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

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: var(--shadow-card), var(--glow-cyan);
}

.service-glow {
    position: absolute;
    bottom: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.2) 0%, transparent 70%);
    filter: blur(40px);
    transition: var(--transition-slow);
    pointer-events: none;
}

.service-card:hover .service-glow {
    bottom: -20%;
    right: -20%;
}

.service-icon {
    margin-bottom: 2rem;
    display: inline-block;
}

.service-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

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

.service-features {
    list-style: none;
    margin-top: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
    font-size: 1.2rem;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(21, 21, 32, 0.5) 50%, transparent 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 2rem 0;
}

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

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(107, 15, 255, 0.1);
    border-radius: 15px;
    transition: var(--transition-normal);
}

.stat-item:hover {
    border-color: rgba(107, 15, 255, 0.3);
    box-shadow: var(--glow-violet);
    transform: translateY(-5px);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

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

.feature-item {
    padding: 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.1);
    border-radius: 15px;
    transition: var(--transition-normal);
}

.feature-item:hover {
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: var(--glow-cyan);
    transform: translateX(10px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    filter: drop-shadow(var(--glow-cyan));
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.feature-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact {
    padding: var(--spacing-xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.2rem 1.5rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 10px;
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: var(--glow-cyan);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(107, 15, 255, 0.1);
    border-radius: 15px;
    transition: var(--transition-normal);
}

.info-item:hover {
    border-color: rgba(107, 15, 255, 0.3);
    box-shadow: var(--glow-violet);
    transform: translateX(10px);
}

.info-icon {
    font-size: 2rem;
    filter: drop-shadow(var(--glow-violet));
}

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

.info-text p {
    color: var(--color-text-secondary);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    padding: 3rem 0 2rem;
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-tagline {
    color: var(--color-text-secondary);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

@keyframes scrollLine {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }
    50% {
        transform: scaleY(1);
        transform-origin: top;
    }
    51% {
        transform: scaleY(1);
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-description {
        margin: 0 auto 2.5rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        padding: 2rem;
        gap: 1.5rem;
        transition: var(--transition-normal);
        border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.9rem 2rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}