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

:root {
    --bg: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a28;
    --border: #1e1e2e;
    --text: #e4e4ed;
    --text-muted: #8888a0;
    --primary: #7c5cfc;
    --primary-light: #9b7eff;
    --accent: #3b82f6;
    --gradient: linear-gradient(135deg, #7c5cfc 0%, #3b82f6 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(124,92,252,0.15) 0%, rgba(59,130,246,0.15) 100%);
    --radius: 12px;
    --radius-sm: 8px;
}

html { scroll-behavior: smooth; }

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.4rem;
}

.nav-links {
    display: flex;
    align-items: center;
    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 24px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(124,92,252,0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 30px rgba(124,92,252,0.5);
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(124,92,252,0.08);
}

.btn-full {
    width: 100%;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(124,92,252,0.15) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 70% 10%, rgba(59,130,246,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-light);
    background: rgba(124,92,252,0.1);
    border: 1px solid rgba(124,92,252,0.2);
    margin-bottom: 32px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

a.hero-badge:hover {
    background: rgba(124,92,252,0.18);
    border-color: rgba(124,92,252,0.4);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.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: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Section shared */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
}

/* Features */
.features {
    padding: 100px 0;
}

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

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(124,92,252,0.3);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--gradient-subtle);
    color: var(--primary-light);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* How it Works */
.how-it-works {
    padding: 100px 0;
}

.steps {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
    width: 80px;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.code-block {
    background: #0d0d14;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    overflow-x: auto;
}

.code-block code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    color: var(--primary-light);
}

/* Pricing */
.pricing {
    padding: 100px 0;
}

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

.pricing-card {
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-2px);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(124,92,252,0.08) 0%, var(--bg-card) 100%);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 100px;
    white-space: nowrap;
}

.pricing-tier {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.pricing-price {
    margin-bottom: 8px;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
}

.price-period {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.pricing-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pricing-features li {
    font-size: 0.9rem;
    color: var(--text-muted);
    padding-left: 24px;
    position: relative;
}

.pricing-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient);
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

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

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text);
    margin-bottom: 16px;
}

.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 {
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Page hero (subpages) */
.page-hero {
    position: relative;
    padding: 160px 0 80px;
    text-align: center;
    overflow: hidden;
}

.page-hero-sm {
    padding: 140px 0 60px;
}

.page-hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

/* Signup form */
.signup-wrapper {
    max-width: 520px;
    margin: 0 auto;
}

.signup-header {
    margin-bottom: 40px;
}

.signup-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-top: 16px;
}

.signup-form {
    text-align: left;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.form-group .optional {
    color: var(--text-muted);
    font-weight: 400;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    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;
    -webkit-appearance: none;
    appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238888a0' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,92,252,0.15);
}

.form-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 16px;
}

.signup-success {
    text-align: center;
    padding: 40px 0;
}

.success-icon {
    color: #22c55e;
    margin-bottom: 24px;
}

.signup-success h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.signup-success p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

/* Docs layout */
.docs-content {
    padding: 60px 0 100px;
}

.docs-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 64px;
    align-items: start;
}

.docs-sidebar {
    position: sticky;
    top: 100px;
}

.docs-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.docs-nav-link {
    display: block;
    padding: 8px 16px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.docs-nav-link:hover,
.docs-nav-link.active {
    color: var(--text);
    background: rgba(124,92,252,0.08);
}

.docs-nav-link.active {
    color: var(--primary-light);
    border-left: 2px solid var(--primary);
}

.docs-main {
    min-width: 0;
}

.docs-section {
    padding-bottom: 48px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--border);
}

.docs-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.docs-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.docs-section h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 12px;
}

.docs-section p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.docs-section ul {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 16px;
    padding-left: 24px;
}

.docs-section ul li {
    margin-bottom: 6px;
}

.docs-section code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}

.docs-section p code {
    background: rgba(124,92,252,0.1);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--primary-light);
}

.docs-section a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.2s;
}

.docs-section a:hover {
    color: var(--text);
}

.docs-section .code-block {
    margin-bottom: 16px;
}

.faq-item {
    margin-bottom: 32px;
}

.faq-item h3 {
    margin-top: 0;
}

/* Legal pages */
.legal-content {
    padding: 60px 0 100px;
}

.legal-body {
    max-width: 720px;
    margin: 0 auto;
}

.legal-body h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.legal-body h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
}

.legal-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.legal-body ul {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 16px;
    padding-left: 24px;
}

.legal-body ul li {
    margin-bottom: 8px;
}

.legal-body a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.2s;
}

.legal-body a:hover {
    color: var(--text);
}

/* About page */
.about-content {
    padding: 60px 0 100px;
}

.about-body {
    max-width: 720px;
    margin: 0 auto;
}

.about-section {
    margin-bottom: 56px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.about-section p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-section p:last-child {
    margin-bottom: 0;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 24px;
}

.value-card {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.value-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.about-cta {
    text-align: center;
    padding: 48px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.about-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 24px;
}

/* Responsive */
@media (max-width: 900px) {
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .docs-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .docs-sidebar {
        position: static;
    }

    .docs-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .docs-nav-link.active {
        border-left: none;
        border-bottom: 2px solid var(--primary);
    }

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

@media (max-width: 640px) {
    .nav-links { display: none; }
    .mobile-toggle { display: flex; }

    .hero { padding: 120px 0 60px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { gap: 32px; }

    .step { flex-direction: column; gap: 16px; }
    .step-number { font-size: 2rem; width: auto; }

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

    .page-hero { padding: 120px 0 40px; }
    .page-hero-sm { padding: 120px 0 40px; }

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