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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.4);
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-green: #10b981;
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated gradient background */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% -20%, rgba(59, 130, 246, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 0%, rgba(139, 92, 246, 0.1), transparent),
        radial-gradient(ellipse 50% 30% at 50% 100%, rgba(59, 130, 246, 0.08), transparent);
    pointer-events: none;
    z-index: -2;
}

/* Subtle noise texture */
.noise {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: -1;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 2rem;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

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

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.logo-text {
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Main content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding-top: 6rem;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.4);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.telegram-icon {
    width: 20px;
    height: 20px;
}

.cta-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Floating cards */
.hero-visual {
    position: relative;
    height: 500px;
}

.card-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    min-width: 200px;
    animation: float 6s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 35%;
    right: 5%;
    animation-delay: -2s;
}

.floating-card.card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: -4s;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.green { background: var(--accent-green); box-shadow: 0 0 10px var(--accent-green); }
.status-dot.blue { background: var(--accent-blue); box-shadow: 0 0 10px var(--accent-blue); }
.status-dot.purple { background: var(--accent-purple); box-shadow: 0 0 10px var(--accent-purple); }

.card-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.card-1 .card-value { color: var(--accent-green); }
.card-2 .card-value { color: var(--accent-blue); }
.card-3 .card-value { color: var(--accent-purple); }

.card-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Features section */
.features {
    padding: 6rem 0;
}

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

.features-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.features-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent-blue);
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 4rem 0 8rem;
}

.cta-card {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 4rem;
    text-align: center;
}

.cta-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-card p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo .logo-icon {
    width: 28px;
    height: 28px;
    font-size: 0.875rem;
}

.footer-logo .logo-text {
    font-size: 1rem;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 8rem;
        min-height: auto;
        padding-bottom: 4rem;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        align-items: center;
    }

    .hero-visual {
        display: none;
    }

    .cta-card {
        padding: 3rem 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 1rem;
    }

    main {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .features {
        padding: 4rem 0;
    }

    .features-header h2 {
        font-size: 1.75rem;
    }
}