/**
 * Vyxelon marketing site — same token system as apps/dashboard's
 * globals.css (see that file's header comment for the full rationale).
 * One exception, per the design-system plan: the hero's H1 keeps a
 * Georgia serif treatment as a deliberate brand flourish — every other
 * heading/body/UI element uses the same sans stack as the product.
 */

:root {
  color-scheme: light;

  /* Brand scale (indigo-navy), 50 lightest -> 950 darkest (= original brand hex) */
  --brand-50: #eef0ff;
  --brand-100: #dfe3fe;
  --brand-200: #c3c8fd;
  --brand-300: #a0a5f5;
  --brand-400: #7a78e8;
  --brand-500: #4f46c7;
  --brand-600: #3e37ac;
  --brand-700: #2f2a8c;
  --brand-800: #201c6b;
  --brand-900: #10094b;
  --brand-950: #00008e;

  /* Neutral scale (cool gray) */
  --gray-0: #ffffff;
  --gray-50: #f8f9fb;
  --gray-100: #f1f2f5;
  --gray-200: #e4e6eb;
  --gray-300: #d3d6dd;
  --gray-400: #b0b4bf;
  --gray-500: #8a8f9c;
  --gray-600: #6b707d;
  --gray-700: #4d515c;
  --gray-800: #34363d;
  --gray-900: #1c1d21;
  --gray-1000: #0b0c0e;

  --gold-500: #a9812f;

  --surface-app: var(--gray-0);
  --surface-alt: var(--gray-50);
  --surface-card: var(--gray-0);
  --border-subtle: var(--gray-200);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-on-brand: #ffffff;

  --brand-interactive: var(--brand-500);
  --brand-interactive-hover: var(--brand-600);
  --brand-tint: var(--brand-50);

  --font-serif: Georgia, "Times New Roman", serif;
  --font-ui: -apple-system, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(16, 9, 75, 0.04);
  --shadow-sm: 0 1px 3px rgba(16, 9, 75, 0.06), 0 1px 2px rgba(16, 9, 75, 0.04);
  --shadow-md: 0 4px 12px rgba(16, 9, 75, 0.08), 0 2px 4px rgba(16, 9, 75, 0.04);
  --shadow-lg: 0 12px 32px rgba(16, 9, 75, 0.12), 0 4px 8px rgba(16, 9, 75, 0.04);

  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 120ms;
  --duration-base: 180ms;
  --duration-slow: 280ms;

  --max-width: 1120px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-app: var(--gray-1000);
  --surface-alt: var(--gray-900);
  --surface-card: var(--gray-900);
  --border-subtle: var(--gray-800);
  --text-primary: var(--gray-50);
  --text-secondary: var(--gray-400);
  /* Dark-mode primary buttons fill with brand-400 (lighter, since
     brand-500/600 read as near-invisible on a near-black surface) — white
     text on that lighter fill fails AA (3.7:1); dark text passes
     comfortably (5.29:1, verified in the dashboard token audit). */
  --text-on-brand: var(--gray-1000);

  --brand-interactive: var(--brand-400);
  --brand-interactive-hover: var(--brand-300);
  --brand-tint: rgba(122, 120, 232, 0.14);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.32);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.44), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5), 0 4px 10px rgba(0, 0, 0, 0.32);
}

/* Deliberately no `@media (prefers-color-scheme: dark)` block — the
   default is always light regardless of OS/browser preference. Dark mode
   is opt-in only, via the theme toggle explicitly setting
   `data-theme="dark"` (see the :root[data-theme="dark"] block above). */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--text-primary);
  background: var(--surface-app);
  line-height: 1.6;
  font-size: 16px;
  transition: background-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}

h1,
h2,
h3,
.wordmark {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0;
}

h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 2.75rem;
}

h2 {
  font-size: 1.9rem;
  margin-bottom: 0.5em;
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4em;
}

p {
  color: var(--text-primary);
  margin: 0;
}

a {
  color: var(--brand-interactive);
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--brand-interactive-hover);
}

:focus-visible {
  outline: 2px solid var(--brand-interactive);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--surface-card);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
  position: relative;
}

.wordmark {
  font-size: 1.4rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.wordmark svg {
  color: var(--brand-interactive);
}

.wordmark span {
  color: var(--gold-500);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.main-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.main-nav .nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

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

.main-nav .nav-links a[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.icon-btn:hover {
  background: var(--surface-alt);
  color: var(--text-primary);
}

.mobile-menu-toggle {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 11px 22px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--brand-interactive);
  color: var(--text-on-brand);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background: var(--brand-interactive-hover);
  box-shadow: var(--shadow-sm);
  color: var(--text-on-brand);
}

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

.btn-secondary:hover {
  background: var(--surface-alt);
  color: var(--text-primary);
}

/* Hero */

.hero {
  padding: 96px 0 88px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 480px;
  background: radial-gradient(closest-side, var(--brand-tint), transparent);
  pointer-events: none;
}

.hero .container {
  position: relative;
}

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--gold-500);
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  max-width: 780px;
  margin: 0 auto 22px;
}

.hero .lede {
  max-width: 620px;
  margin: 0 auto 36px;
  color: var(--text-secondary);
  font-size: 1.15rem;
}

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

/* Sections */

section {
  padding: 80px 0;
}

section.alt {
  background: var(--surface-alt);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-heading {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-heading p {
  color: var(--text-secondary);
}

/* How it works / Getting started steps */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.step {
  transition: transform var(--duration-base) var(--ease-out);
}

.step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--brand-tint);
  color: var(--brand-interactive-hover);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Differentiators grid */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 48px;
}

.differentiator {
  border-left: 3px solid var(--brand-interactive);
  padding-left: 20px;
}

.differentiator p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Audience */

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.audience-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  background: var(--surface-card);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}

.audience-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.audience-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Pricing */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  text-align: left;
  background: var(--surface-card);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.pricing-card.highlight {
  border-color: var(--brand-interactive);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.pricing-card .tier-badge {
  position: absolute;
  top: -13px;
  left: 28px;
  background: var(--brand-interactive);
  color: var(--text-on-brand);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 12px 0 2px;
}

.pricing-card .price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-card .price-note {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  text-align: left;
  flex: 1;
}

.pricing-card li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: 8px 0;
  font-size: 0.9rem;
}

.pricing-card li svg {
  flex-shrink: 0;
  color: var(--brand-interactive);
  margin-top: 3px;
}

.overage-note {
  max-width: 720px;
  margin: 32px auto 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.addon-note {
  max-width: 520px;
  margin: 24px auto 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* FAQ */

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px 0;
}

.faq-item h3 {
  margin-bottom: 8px;
}

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* CTA band */

.cta-band {
  text-align: center;
  background: radial-gradient(circle at 25% 20%, var(--brand-500), var(--brand-900) 70%);
  color: #fff;
  padding: 72px 0;
}

.cta-band h2 {
  color: #fff;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 520px;
  margin: 0 auto 32px;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--brand-900);
}

.cta-band .btn-primary:hover {
  background: #e8e8f5;
  color: var(--brand-900);
}

/* Legal pages (Terms, Privacy, DPA, Refund Policy, MSA) */

.legal-hero {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--gold-500);
  font-weight: 600;
  margin-bottom: 12px;
}

.legal-hero h1 {
  font-size: 2rem;
  max-width: none;
  margin: 0 0 10px;
}

.legal-hero .updated {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.legal-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: start;
  padding: 56px 0 96px;
}

.legal-toc {
  position: sticky;
  top: 96px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  background: var(--surface-card);
}

.legal-toc h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.legal-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: toc;
}

.legal-toc li {
  counter-increment: toc;
  margin-bottom: 8px;
}

.legal-toc a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.legal-toc a::before {
  content: counter(toc) ". ";
  color: var(--brand-interactive);
  font-weight: 600;
}

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

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

.legal-body .lead {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: var(--space-8);
}

.legal-body section {
  padding: 0;
  margin-bottom: var(--space-10);
  scroll-margin-top: 96px;
}

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

.legal-body h2 {
  font-size: 1.3rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-8);
}

.legal-body section:first-of-type h2 {
  border-top: none;
  padding-top: 0;
}

.legal-body h3 {
  font-size: 1.02rem;
  margin-top: var(--space-5);
}

.legal-body p,
.legal-body li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}

.legal-body ul,
.legal-body ol.plain {
  padding-left: 1.3em;
  margin: 0 0 var(--space-4);
}

.legal-body strong {
  color: var(--text-primary);
}

.legal-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  font-size: 0.9rem;
}

.legal-body th,
.legal-body td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--border-subtle);
  vertical-align: top;
  color: var(--text-secondary);
}

.legal-body th {
  color: var(--text-primary);
  background: var(--surface-alt);
}

.legal-notice {
  background: var(--brand-tint);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

/* Footer */

.site-footer {
  padding: 40px 0 0;
  border-top: 1px solid var(--border-subtle);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-top p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-decoration: none;
}

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

.footer-legal {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding: 16px 0 24px;
  border-top: 1px solid var(--border-subtle);
}

.footer-legal a {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-decoration: none;
}

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

/* Fade-in on load */

.fade-in {
  animation: fade-in var(--duration-slow) var(--ease-out);
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile */

@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .legal-layout {
    grid-template-columns: 1fr;
  }
  .legal-toc {
    position: static;
  }
}

@media (max-width: 760px) {
  .hero {
    padding: 64px 0 56px;
  }
  h1 {
    font-size: 2.1rem;
  }
  .steps,
  .grid-2,
  .audience-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .main-nav .nav-links {
    display: none;
  }
  .main-nav .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface-card);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-md);
    gap: var(--space-3);
  }
  .mobile-menu-toggle {
    display: inline-flex;
  }
  section {
    padding: 56px 0;
  }
}