/* Global Variables */
:root {
    --primary-color: #ffffff;
    --secondary-color: #e0e0e0;
    --accent-color: #cccccc;
    --dark-bg: #0a0a0a;
    --dark-card: #1a1a1a;
    --dark-border: #333;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #888;
    --gradient-primary: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    --gradient-accent: linear-gradient(135deg, #cccccc 0%, #aaaaaa 100%);
    --shadow-glow: 0 0 20px rgba(255, 255, 255, 0.2);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Scroll Progress Indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 1000;
}

.scroll-progress {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.1s ease;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--dark-border);
    z-index: 999;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow-card);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.brand-icon {
    width: 45px;
    height: 45px;
}

.brand-content {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.brand-slogan {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        /* Modern neural network pattern */
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.08) 1px, transparent 1px),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.06) 1px, transparent 1px),
        /* Data flow lines */
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.03) 49%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.03) 49%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 51%, transparent 52%),
        /* Dynamic particles */
        radial-gradient(3px 3px at 30px 20px, var(--primary-color), transparent),
        radial-gradient(2px 2px at 80px 60px, var(--secondary-color), transparent),
        radial-gradient(1px 1px at 120px 40px, var(--accent-color), transparent);
    background-repeat: repeat;
    background-size: 150px 150px, 200px 200px, 300px 300px, 180px 180px, 180px 180px, 250px 250px, 180px 180px, 200px 200px;
    animation: modernTechFlow 30s linear infinite, energyPulse 4s ease-in-out infinite alternate, dataStream 20s linear infinite;
    opacity: 0.6;
}

@keyframes modernTechFlow {
    0% { transform: translateY(0px) translateX(0px) rotate(0deg); }
    25% { transform: translateY(-50px) translateX(20px) rotate(0.5deg); }
    50% { transform: translateY(-100px) translateX(-10px) rotate(1deg); }
    75% { transform: translateY(-150px) translateX(30px) rotate(0.5deg); }
    100% { transform: translateY(-200px) translateX(0px) rotate(0deg); }
}

@keyframes energyPulse {
    0% { opacity: 0.4; filter: brightness(1); }
    100% { opacity: 0.7; filter: brightness(1.2); }
}

@keyframes dataStream {
    0% { background-position: 0% 0%; }
    100% { background-position: 100% 100%; }
}

@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-200px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.lightning-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    animation: lightningPulse 2s ease-in-out infinite;
}

.lightning-icon {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
    animation: lightningFlash 1.5s ease-in-out infinite;
}

.lightning-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 1px;
    text-transform: uppercase;
}

@keyframes lightningPulse {
    0%, 100% { 
        opacity: 0.8;
        transform: scale(1);
    }
    50% { 
        opacity: 1;
        transform: scale(1.05);
    }
}

@keyframes lightningFlash {
    0%, 90%, 100% { 
        opacity: 1;
    }
    95% { 
        opacity: 0.3;
    }
}

.hero-title {
    margin-bottom: 1.5rem;
}

.glitch-text {
    display: inline-block;
    position: relative;
    color: var(--text-primary);
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-text::before {
    animation: glitch-1 0.5s infinite;
    color: var(--secondary-color);
    z-index: -1;
}

.glitch-text::after {
    animation: glitch-2 0.5s infinite;
    color: var(--accent-color);
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 14%, 15%, 49%, 50%, 99%, 100% { transform: translate(0); }
    15%, 49% { transform: translate(-2px, -1px); }
}

@keyframes glitch-2 {
    0%, 20%, 21%, 62%, 63%, 99%, 100% { transform: translate(0); }
    21%, 62% { transform: translate(2px, 1px); }
}

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

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Styles */
section {
    padding: 6rem 0;
    position: relative;
}

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

.section-title {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Animations - Content visible by default */
.fade-in {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.animate-in {
    opacity: 0;
    transform: translateY(30px);
}

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

.slide-in-left {
    opacity: 1;
    transform: translateX(0);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-left.animate-in {
    opacity: 0;
    transform: translateX(-50px);
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 1;
    transform: translateX(0);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right.animate-in {
    opacity: 0;
    transform: translateX(50px);
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: left 0.3s ease;
    }

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

    .hamburger {
        display: flex;
    }

    .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);
    }

    .container {
        padding: 0 1rem;
    }

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

    section {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }
    
    .hero-content {
        padding: 0 1rem;
    }
}