/* Olocus landing-site (M7) — layout + components.
 *
 * Pure static HTML + CSS, no JS. The site deploys to olocus.com;
 * app.olocus.com and verify.olocus.com run the Trunk bundles in
 * crates/olocus-app/. Every value below references the design tokens
 * in tokens.css per STYLE-GUIDE §0 (Operating discipline). */

/* --- Page chrome ------------------------------------------------------ */

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header,
.site-footer {
  padding-inline: var(--space-6);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-border-secondary);
}

.site-header a.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-primary-accent);
  text-decoration: none;
}

.site-header a.brand-lockup:hover {
  text-decoration: none;
}

.site-header .wordmark {
  height: 28px;
  width: auto;
}

.site-nav {
  display: flex;
  gap: var(--space-5);
}

.site-nav a {
  color: var(--color-text-body);
  text-decoration: none;
  font-size: 0.9375rem;
}

.site-nav a:hover {
  color: var(--color-text-heading);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.site-footer {
  margin-top: auto;
  padding-block: var(--space-10);
  border-top: 1px solid var(--color-border-secondary);
  background-color: var(--color-bg-surface);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.site-footer .footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: space-between;
  align-items: baseline;
  max-width: 1100px;
  margin-inline: auto;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}

.site-footer nav a {
  color: var(--color-text-body);
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--color-text-heading);
}

/* --- Hero ------------------------------------------------------------- */

.hero {
  padding: var(--space-24) var(--space-6);
  text-align: left;
}

.hero-column {
  max-width: 720px;
  margin-inline: auto;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-block-end: var(--space-6);
  color: var(--color-text-heading);
}

.hero .hero-sub {
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1.35;
  color: var(--color-text-body);
  margin-block-end: var(--space-5);
  max-width: 60ch;
}

.hero .hero-body {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-body);
  max-width: 65ch;
  margin-block-end: var(--space-8);
}

.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.primary-cta,
.secondary-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-decoration: none;
  transition: background-color var(--duration-default) var(--ease-default);
}

.primary-cta {
  background-color: var(--color-primary-bg);
  color: var(--color-text-on-primary);
}

.primary-cta:hover {
  background-color: var(--color-primary-hover);
  text-decoration: none;
}

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

.secondary-cta:hover {
  background-color: var(--color-bg-surface);
  text-decoration: none;
}

/* --- Two-panel Record / Share explainer ------------------------------- */

.two-panel {
  padding: var(--space-16) var(--space-6) var(--space-24);
  background-color: var(--color-bg-surface);
  border-block: 1px solid var(--color-border-secondary);
}

.two-panel-grid {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

@media (min-width: 720px) {
  .two-panel-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.panel h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-block-end: var(--space-4);
}

.panel-overline {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-block-end: var(--space-3);
}

.panel p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-body);
  max-width: 50ch;
  margin-block-end: var(--space-4);
}

.panel ul {
  margin: 0;
  padding-inline-start: var(--space-5);
  color: var(--color-text-body);
}

.panel li + li {
  margin-block-start: var(--space-2);
}

/* --- Lapis bounded-exception callout (STYLE-GUIDE §9.3) --------------- */

.callout-bounded {
  margin-block: var(--space-10);
  padding: var(--space-5) var(--space-6);
  border-inline-start: 4px solid var(--color-accent-bounded);
  background-color: var(--color-accent-bounded-subtle);
  color: var(--color-text-bounded);
  border-radius: var(--radius-md);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 65ch;
}

.callout-bounded strong {
  color: var(--color-text-bounded);
  font-weight: 600;
}

/* --- Honest-commitments grid ----------------------------------------- */

.commitments {
  padding: var(--space-16) var(--space-6);
}

.commitments-inner {
  max-width: 1100px;
  margin-inline: auto;
}

.commitments h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-block-end: var(--space-8);
}

.commitments-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 720px) {
  .commitments-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.commitment {
  padding: var(--space-5) var(--space-6);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-md);
}

.commitment h3 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  margin-block-end: var(--space-2);
}

.commitment p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-body);
}

/* --- Prose pages (privacy / transparency / support / verifiers) ------- */

.prose {
  max-width: 65ch;
  margin: var(--space-12) auto;
  padding-inline: var(--space-6);
}

.prose h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-block-end: var(--space-6);
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.3;
  margin-block-start: var(--space-10);
  margin-block-end: var(--space-3);
}

.prose h3 {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 600;
  margin-block-start: var(--space-6);
  margin-block-end: var(--space-2);
}

.prose p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-body);
  margin-block-end: var(--space-4);
}

.prose ul,
.prose ol {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-body);
  margin-block: var(--space-4);
  padding-inline-start: var(--space-6);
}

.prose li + li {
  margin-block-start: var(--space-2);
}

.prose .updated {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-block-end: var(--space-8);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.95em;
  background-color: var(--color-bg-surface);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
}

/* --- Iris mark sizing ------------------------------------------------- */

.iris-mark-header {
  height: 28px;
  width: 28px;
  color: var(--color-primary-accent);
}

/* --- Skip link (a11y) ------------------------------------------------- */

.skip-link {
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: -100px;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-primary-bg);
  color: var(--color-text-on-primary);
  text-decoration: none;
  border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
  inset-block-start: 0;
}