@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");
@import "tokens.css";

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

html { scroll-behavior: smooth; background-color: var(--bg); }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 20% 15%, rgba(156, 50, 202, 0.15), transparent 50%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(156, 50, 202, 0.10), transparent 50%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(156, 50, 202, 0.05), transparent 50%),
    radial-gradient(circle, rgba(0, 0, 0, 0.06) 1px, transparent 1px) 0 0 / 32px 32px;
  background-color: transparent;
  background-attachment: fixed;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

[data-theme="dark"] body {
  background:
    radial-gradient(ellipse 80% 50% at 20% 15%, rgba(156, 50, 202, 0.35), transparent 50%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(156, 50, 202, 0.22), transparent 50%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(156, 50, 202, 0.12), transparent 50%),
    radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px) 0 0 / 32px 32px;
  background-color: transparent;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body {
    background:
      radial-gradient(ellipse 80% 50% at 20% 15%, rgba(156, 50, 202, 0.35), transparent 50%),
      radial-gradient(ellipse 60% 50% at 80% 70%, rgba(156, 50, 202, 0.22), transparent 50%),
      radial-gradient(ellipse 50% 50% at 50% 50%, rgba(156, 50, 202, 0.12), transparent 50%),
      radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px) 0 0 / 32px 32px;
    background-color: transparent;
  }
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.85; }

img { max-width: 100%; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .925rem;
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--text);
}

.nav-brand svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  font-size: .875rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-muted);
  opacity: 1;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  font-size: .8rem;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}

.theme-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.nav-cta {
  background: var(--accent-gradient) !important;
  color: var(--accent-fg) !important;
  font-weight: 500;
}

.nav-cta:hover {
  opacity: .9;
  background: var(--accent) !important;
}

.nav-signin {
  font-size: .875rem;
  color: var(--text-muted);
  padding: 6px 12px;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 100px 24px 80px;
  text-align: center;
}

.hero-glow {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 50% -10%, color-mix(in srgb, var(--text) 8%, transparent), transparent);
}

.hero h1 {
  position: relative;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}

.hero-sub {
  display: block;
  font-size: 0.38em;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: -.01em;
}

.hero p {
  position: relative;
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-buttons {
  position: relative;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--accent-fg);
}

.btn-primary:hover { opacity: .9; }

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

.btn-outline:hover {
  background: var(--bg-muted);
}

.btn-lg { padding: 13px 28px; font-size: .95rem; }

/* ---- Sections ---- */
.section { padding: 80px 24px; }
.section-alt { background: var(--bg-elevated); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -.02em;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---- Features ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color var(--transition);
}

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

.feature-card:hover { border-color: var(--border-strong); }

.feature-card h3 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -.01em;
}

.feature-card p {
  color: var(--text-muted);
  font-size: .875rem;
  line-height: 1.65;
}

/* ---- Steps ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.step {
  padding: 28px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.step h3 {
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-muted);
  font-size: .875rem;
  line-height: 1.65;
}

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.pricing-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: border-color var(--transition);
}

.pricing-card:hover { border-color: var(--border-strong); }

.pricing-card.featured {
  border-color: var(--border-strong);
  border-width: 2px;
}

.plan-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.plan-name { font-size: 1.1rem; font-weight: 600; margin-bottom: 4px; }
.plan-desc { color: var(--text-muted); font-size: .85rem; margin-bottom: 16px; }
.plan-price { font-size: 2.25rem; font-weight: 600; letter-spacing: -.02em; margin-bottom: 4px; }
.plan-price .period { font-size: .875rem; color: var(--text-muted); font-weight: 400; }

.plan-features { list-style: none; text-align: left; margin: 24px 0; }
.plan-features li {
  padding: 8px 0;
  font-size: .875rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.plan-features .check { color: var(--success); margin-right: 8px; }
.plan-features .cross { color: var(--text-subtle); margin-right: 8px; }

.plan-cta { display: block; width: 100%; margin-top: 12px; }

/* ---- Docs ---- */
.docs-wrapper { display: flex; gap: 40px; align-items: flex-start; }
.docs-sidebar { width: 220px; flex-shrink: 0; }
.docs-content { flex: 1; min-width: 0; }

.docs-sidebar nav { position: sticky; top: 80px; }
.docs-sidebar h4 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.docs-sidebar ul { list-style: none; }
.docs-sidebar li { margin-bottom: 4px; }
.docs-sidebar a {
  font-size: .875rem;
  color: var(--text-muted);
  display: block;
  padding: 5px 0;
}
.docs-sidebar a:hover { color: var(--text); opacity: 1; }

.docs-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -.02em;
  margin: 32px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.docs-content h2:first-child { border-top: none; margin-top: 0; padding-top: 0; }
.docs-content h3 { font-size: 1.1rem; font-weight: 600; margin: 24px 0 8px; }
.docs-content p { margin-bottom: 14px; color: var(--text-muted); line-height: 1.7; }
.docs-content ul, .docs-content ol { margin: 0 0 16px 20px; color: var(--text-muted); }
.docs-content li { margin-bottom: 6px; font-size: .925rem; }
.docs-content code {
  background: var(--bg-muted);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .85rem;
  font-family: var(--font-mono);
}
.docs-content pre {
  background: var(--bg-muted);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: 18px;
  font-size: .85rem;
  line-height: 1.6;
  font-family: var(--font-mono);
}
.docs-content pre code { background: none; padding: 0; }

/* ---- CTA ---- */
.cta-banner { text-align: center; }
.cta-banner p { margin-bottom: 24px; font-size: 1.05rem; color: var(--text-muted); }
.cta-banner .btn { margin: 0 6px; }

.paddle-note {
  background: var(--warning-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  margin: 24px 0;
  font-size: .875rem;
  color: var(--text-muted);
  text-align: center;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand { font-weight: 600; font-size: .875rem; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: .825rem; color: var(--text-muted); }
.footer-copy { color: var(--text-subtle); font-size: .8rem; }

/* ---- Page header (pricing/docs) ---- */
.page-hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 64px 24px 32px;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -.03em;
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding-top: 72px; }
  .docs-wrapper { flex-direction: column; }
  .docs-sidebar { width: 100%; }
  .docs-sidebar nav { position: static; }
  .footer-inner { flex-direction: column; text-align: center; }
}