:root {
    --cyber-blue: #00d9ff;
    --neon-purple: #9d00ff;
    --dark-bg: #0a0b14;
    --card-bg: rgba(16, 18, 27, 0.8);
    --card-border: rgba(0, 217, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #b8c1ec;
    --accent-green: #00ff9d;
    --accent-red: #ff0055;
    --grid-color: rgba(0, 217, 255, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-bg);
    background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(157, 0, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    padding-top: 80px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    border-bottom: 1px solid rgba(0, 217, 255, 0.2);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 30px;
    right: 30px;
    z-index: 1000;
    transition: transform 0.3s ease-in-out;
    will-change: transform;
}

header.header--hidden {
  transform: translateY(-100%);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo-icon {
    font-size: 24px;
    color: var(--cyber-blue);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--cyber-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--cyber-blue);
}

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

.lang-switch {
    display: flex;
    gap: 10px;
    background: var(--card-bg);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.lang-switch a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.lang-switch a.active {
    background: var(--cyber-blue);
    color: var(--dark-bg);
}

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 30px;
    text-transform: uppercase;
}

.gradient-text {
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    display: inline-block;
}

.gradient-text::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--cyber-blue), transparent);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-container {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 35px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    color: var(--dark-bg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
}

.cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

.cta-secondary {
    background: transparent;
    border: 2px solid var(--cyber-blue);
    color: var(--cyber-blue);
}

.cta-secondary:hover {
    background: rgba(0, 217, 255, 0.1);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 80px 0;
}

.feature {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.1), transparent);
    transition: left 0.6s ease;
}

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

.feature:hover {
    transform: translateY(-10px);
    border-color: var(--cyber-blue);
    box-shadow: 0 20px 40px rgba(0, 217, 255, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--cyber-blue), var(--neon-purple));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 28px;
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--cyber-blue);
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 60px;
    font-size: 1.1rem;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.content-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    transition: all 0.3s ease;
}

.content-item:hover {
    border-color: var(--cyber-blue);
    transform: translateY(-5px);
}

.content-item h3 {
    color: var(--cyber-blue);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.content-item ul {
    list-style: none;
}

.content-item li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    color: var(--text-secondary);
    position: relative;
    padding-left: 25px;
}

.content-item li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--cyber-blue);
    font-weight: bold;
}

/* How It Works */
.how-it-works-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    position: relative;
}

.how-it-works-steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 50px;
    right: 50px;
    height: 2px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    z-index: 1;
}

.step {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--cyber-blue), var(--neon-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 900;
    margin: 0 auto 20px;
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    padding: 80px 0;
    text-align: center;
}

.stat-item {
    padding: 40px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(90deg, var(--cyber-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

/* Success Stories */
.success-stories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.story-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px;
    transition: all 0.3s ease;
}

.story-card:hover {
    border-color: var(--cyber-blue);
    transform: translateY(-5px);
}

.story-quote {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 30px;
    position: relative;
    padding-left: 30px;
}

.story-quote::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 4rem;
    color: var(--cyber-blue);
    opacity: 0.3;
    font-family: serif;
}

.story-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--cyber-blue), var(--neon-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
}

/* Footer */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid rgba(0, 217, 255, 0.2);
    text-align: center;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--cyber-blue);
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--cyber-blue);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 40px;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--cyber-blue), var(--neon-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark-bg);
    text-decoration: none;
    font-size: 20px;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 9999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 217, 255, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
    font-size: 2.5rem;
    }
    
    .section-title {
    font-size: 2rem;
    }
    
    .nav-links {
    display: none;
    }
    
    .cta-container {
    flex-direction: column;
    align-items: center;
    }
    
    .how-it-works-steps::before {
    display: none;
    }
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}