:root {
    --bg: #0a0a0f;
    --bg-alt: #111118;
    --surface: #1a1a24;
    --border: #2a2a3a;
    --text: #e4e4ed;
    --text-muted: #8888a0;
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --accent: #2563eb;
    --gradient: linear-gradient(135deg, var(--primary), var(--accent));
    --radius: 12px;
    --radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    backdrop-filter: blur(20px);
    background: rgba(10, 10, 15, 0.8);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.navbar.scrolled {
    border-bottom-color: var(--border);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-sm {
    padding: 8px 20px;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
}

.btn-full {
    width: 100%;
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero-content {
    max-width: 720px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat strong {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.stat span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    max-width: 560px;
    margin: 0 auto 60px;
}

.label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-light);
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

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

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.card-icon {
    font-size: 1.6rem;
    margin-bottom: 16px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Split Section */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.split-text .label {
    display: block;
}

.split-text h2 {
    font-size: clamp(1.8rem, 3vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: 20px;
}

.split-text p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
}

.split-text .btn {
    margin-top: 12px;
}

.visual-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.visual-bar {
    height: 12px;
    background: var(--gradient);
    border-radius: 6px;
    width: var(--w);
    opacity: 0.7;
    transition: opacity 0.3s;
}

.visual-block:hover .visual-bar {
    opacity: 1;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(108, 92, 231, 0.15);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 20px;
    white-space: nowrap;
}

.pricing-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.price {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 28px;
}

.pricing-card li {
    padding: 8px 0;
    font-size: 0.92rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.pricing-card li:last-child {
    border: none;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-light);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 12px;
    max-width: 260px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    color: var(--text-muted);
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 24px;
        gap: 16px;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .split {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}