:root {
    --bg-color: #040914;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1200px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background effects */
.background-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle at center, rgba(16, 56, 104, 0.4) 0%, rgba(4, 9, 20, 0) 60%);
    z-index: -1;
    pointer-events: none;
}

.circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.03);
    z-index: -2;
    pointer-events: none;
}

.circle-1 { width: 1200px; height: 1200px; }
.circle-2 { width: 1800px; height: 1800px; }

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 64px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    text-decoration: none;
}

.logo img {
    border-radius: 6px;
}

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

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Buttons */
.btn {
    padding: 14px 28px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.btn-sm { padding: 10px 20px; }
.btn-lg { padding: 18px 40px; font-size: 17px; }

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

/* Hero Section */
.hero {
    max-width: 1000px;
    margin: 80px auto 0;
    text-align: center;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    color: #cbd5e1;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

.badge .dot {
    width: 6px;
    height: 6px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.8);
}

.hero-title {
    font-size: 68px;
    line-height: 1.15;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 90%;
    background: rgba(59, 130, 246, 0.15);
    filter: blur(120px);
    z-index: -1;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

/* Shared section styles */
.section-title {
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 56px;
    letter-spacing: -0.5px;
}

/* Features */
.features {
    max-width: var(--max-width);
    margin: 100px auto 0;
    padding: 0 24px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 36px 28px;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* How it works */
.how-it-works {
    max-width: 720px;
    margin: 120px auto 0;
    padding: 0 24px;
}

.steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 32px;
    counter-reset: none;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 28px 32px;
}

.step-num {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.step p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* FAQ */
.faq {
    max-width: 720px;
    margin: 120px auto 0;
    padding: 0 24px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 24px 28px;
}

.faq-item dt {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
}

.faq-item dd {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* CTA */
.cta {
    max-width: 720px;
    margin: 120px auto 0;
    padding: 64px 24px;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 24px;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.cta-desc {
    font-size: 17px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    margin-top: 120px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0 24px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 48px 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
}

.footer-brand .logo {
    font-size: 20px;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 320px;
    line-height: 1.5;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.footer-nav a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(148, 163, 184, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 20px 24px;
    }
    .nav {
        display: none;
    }
    .hero-title {
        font-size: 40px;
    }
    .hero-subtitle {
        font-size: 15px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .section-title {
        font-size: 30px;
    }
    .step {
        flex-direction: column;
        gap: 16px;
    }
    .cta-title {
        font-size: 28px;
    }
    .footer-inner {
        flex-direction: column;
    }
}