/* Unrecorded marketing site — brand tokens from docs/brand-colors.json */

:root {
  --color-primary: #5b4dff;
  --color-primary-dark: #3f36c9;
  --color-accent: #7c3aed;
  --color-surface: #f6f6fa;
  --color-surface-alt: #ecebff;
  --color-on-surface: #2b2d42;
  --color-muted: #6b7280;
  --color-line: #d8d7e6;
  --color-white: #ffffff;
  --color-bg-dark: #0f1117;

  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, monospace;

  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgb(15 17 23 / 0.06);
  --shadow-md: 0 8px 24px rgb(91 77 255 / 0.1);
  --shadow-lg: 0 20px 48px rgb(91 77 255 / 0.12);

  --max-width: 72rem;
  --header-height: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-on-surface);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-primary);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-md);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  left: var(--space-md);
}

/* Layout */

.container {
  width: min(100% - 2 * var(--space-lg), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgb(255 255 255 / 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: inherit;
}

.brand-link:hover {
  color: inherit;
}

.brand-link img {
  width: 2.25rem;
  height: 2.25rem;
}

.brand-name {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-muted);
}

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

/* Hero */

.hero {
  position: relative;
  padding-block: var(--space-4xl) var(--space-3xl);
  overflow: hidden;
  background: linear-gradient(
    165deg,
    var(--color-surface-alt) 0%,
    var(--color-surface) 45%,
    var(--color-white) 100%
  );
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      ellipse 80% 50% at 90% 10%,
      rgb(91 77 255 / 0.08),
      transparent 70%
    ),
    radial-gradient(
      ellipse 60% 40% at 5% 80%,
      rgb(124 58 237 / 0.06),
      transparent 70%
    );
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 56rem) {
  .hero .container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }
}

.hero-content {
  max-width: 36rem;
}

.hero-eyebrow {
  display: inline-block;
  margin-bottom: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-full);
}

.hero h1 {
  margin: 0 0 var(--space-lg);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 750;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-bg-dark);
}

.hero-lead {
  margin: 0 0 var(--space-lg);
  font-size: 1.1875rem;
  color: var(--color-on-surface);
}

.hero-note {
  margin: 0 0 var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-muted);
  background: rgb(255 255 255 / 0.7);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.875rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled,
.btn-primary[aria-disabled="true"] {
  opacity: 0.85;
  cursor: default;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-line);
}

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

/* Hero visual — abstract signal rings, not fake scan results */

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.signal-visual {
  width: min(100%, 20rem);
  aspect-ratio: 1;
  position: relative;
}

.signal-visual svg {
  width: 100%;
  height: 100%;
}

/* Sections */

.section {
  padding-block: var(--space-3xl);
}

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

.section-header {
  max-width: 40rem;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-bg-dark);
}

.section-header p {
  margin: 0;
  color: var(--color-muted);
  font-size: 1.0625rem;
}

/* Cards */

.card-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 48rem) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  padding: var(--space-xl);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.section-alt .card {
  background: var(--color-white);
}

.card-icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.card h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 650;
  color: var(--color-bg-dark);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

/* Limits — prominent */

.limits-panel {
  padding: var(--space-2xl);
  background: linear-gradient(
    135deg,
    var(--color-white) 0%,
    var(--color-surface-alt) 100%
  );
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.limits-panel h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  color: var(--color-bg-dark);
}

.limits-panel > p {
  margin: 0 0 var(--space-lg);
  max-width: 52rem;
}

.limits-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-sm);
}

@media (min-width: 40rem) {
  .limits-list {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
}

.limits-list li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 0.9375rem;
  color: var(--color-on-surface);
}

.limits-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.7;
}

/* Steps */

.steps {
  display: grid;
  gap: var(--space-xl);
  counter-reset: step;
}

@media (min-width: 48rem) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
  }
}

.step {
  counter-increment: step;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: var(--space-md);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border-radius: var(--radius-full);
}

.step-num::before {
  content: counter(step);
}

.step h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 650;
}

.step p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
}

/* Privacy callout */

.privacy-callout {
  text-align: center;
  max-width: 40rem;
  margin-inline: auto;
}

.privacy-callout h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 1.875rem);
}

.privacy-callout p {
  margin: 0 0 var(--space-lg);
  color: var(--color-muted);
}

/* Open source */

.opensource {
  text-align: center;
  max-width: 42rem;
  margin-inline: auto;
}

.opensource h2 {
  margin: 0 0 var(--space-md);
}

.opensource p {
  margin: 0 0 var(--space-md);
  color: var(--color-muted);
}

.opensource .byline {
  font-size: 0.9375rem;
  color: var(--color-muted);
}

.opensource .byline strong {
  color: var(--color-on-surface);
  font-weight: 600;
}

/* Footer */

.site-footer {
  padding-block: var(--space-2xl);
  background: var(--color-bg-dark);
  color: rgb(229 231 235);
  font-size: 0.9375rem;
}

.site-footer a {
  color: rgb(180 171 255);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav a {
  font-weight: 500;
}

.footer-copy {
  margin: 0;
  color: rgb(156 163 175);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Privacy policy page */

.policy-page {
  padding-block: var(--space-2xl) var(--space-3xl);
}

.policy-page .container {
  max-width: 48rem;
}

.policy-page h1 {
  margin: 0 0 var(--space-sm);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  color: var(--color-bg-dark);
}

.policy-meta {
  margin: 0 0 var(--space-2xl);
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.policy-page h2 {
  margin: var(--space-2xl) 0 var(--space-md);
  font-size: 1.25rem;
  font-weight: 650;
  color: var(--color-bg-dark);
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}

.policy-page h3 {
  margin: var(--space-lg) 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 600;
}

.policy-page p,
.policy-page li {
  color: var(--color-on-surface);
}

.policy-page ul {
  margin: 0 0 var(--space-md);
  padding-left: 1.25rem;
}

.policy-page li {
  margin-bottom: var(--space-xs);
}

.policy-todo {
  margin: var(--space-md) 0;
  padding: var(--space-md) var(--space-lg);
  font-size: 0.875rem;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-sm);
}

.policy-todo strong {
  color: var(--color-on-surface);
}

.policy-summary {
  padding: var(--space-lg);
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2xl);
}

.policy-summary ul {
  margin-bottom: 0;
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  font-weight: 500;
  text-decoration: none;
}

.back-home:hover {
  text-decoration: underline;
}