/**
 * Landing + sponsor surfaces — built on civic-clarity tokens.
 * Plain-English entry points to the platform.
 */

.skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  top: var(--cd-space-sm);
  left: var(--cd-space-sm);
  width: auto;
  height: auto;
  padding: var(--cd-space-sm) var(--cd-space-base);
  background: var(--cd-text);
  color: var(--cd-seafoam-hi);
  border-radius: var(--cd-radius-sm);
  z-index: 100;
}

.landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cd-space-base);
  padding: var(--cd-space-base) var(--cd-grid-padding);
  border-bottom: 1px solid var(--cd-alum-hi);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--cd-space-sm);
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-weight: 600;
  color: var(--cd-text);
  text-decoration: none;
}

.landing-mark {
  font-size: 1.35rem;
  color: var(--cd-orange);
}

.landing-brand-name {
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.landing-nav {
  display: flex;
  gap: var(--cd-space-base);
}

.landing-nav a {
  color: var(--cd-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: var(--cd-space-xs) var(--cd-space-sm);
  border-radius: var(--cd-radius-sm);
  transition: color var(--cd-duration-atom) var(--cd-ease-fast),
              background var(--cd-duration-atom) var(--cd-ease-fast);
}

.landing-nav a:hover,
.landing-nav a:focus-visible {
  color: var(--cd-text);
  background: rgba(255, 255, 255, 0.45);
  outline: none;
}

.landing-main {
  max-width: 64rem;
  margin: 0 auto;
  padding: var(--cd-space-xl) var(--cd-grid-padding) var(--cd-space-xl);
}

.landing-hero {
  text-align: center;
  padding: clamp(2rem, 6vw, 4rem) 0 clamp(2rem, 5vw, 3rem);
}

.landing-eyebrow {
  display: inline-block;
  margin: 0 0 var(--cd-space-base);
  padding: var(--cd-space-xs) var(--cd-space-md);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cd-orange-lo);
  background: rgba(227, 139, 66, 0.08);
  border: 1px solid rgba(227, 139, 66, 0.18);
  border-radius: var(--cd-radius-pill);
}

.landing-headline {
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.25rem);
  letter-spacing: -0.015em;
  line-height: 1.1;
  color: var(--cd-text);
  margin: 0 0 var(--cd-space-base);
  max-width: 36ch;
  margin-inline: auto;
}

.landing-lede {
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  line-height: 1.55;
  color: var(--cd-muted);
  max-width: 48ch;
  margin: 0 auto var(--cd-space-lg);
}

.landing-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cd-space-base);
  justify-content: center;
  margin-bottom: var(--cd-space-lg);
}

.cd-btn--lg {
  font-size: 1rem;
  padding: var(--cd-space-md) var(--cd-space-xl);
  min-height: 52px;
}

.landing-trust {
  font-size: 0.8125rem;
  color: var(--cd-muted);
  letter-spacing: 0.01em;
}

.landing-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: var(--cd-space-lg);
  margin: clamp(2rem, 5vw, 3rem) 0;
}

.landing-tile {
  padding: var(--cd-space-lg);
  background: var(--cd-material-seafoam);
  border: 1px solid var(--cd-alum-hi);
  border-radius: var(--cd-radius-md);
  box-shadow: var(--cd-shadow-l1);
  display: flex;
  flex-direction: column;
  gap: var(--cd-space-sm);
}

.landing-tile h2 {
  margin: 0;
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--cd-text);
}

.landing-tile p {
  margin: 0;
  color: var(--cd-muted);
  font-size: 0.95rem;
  line-height: 1.55;
  flex: 1;
}

.landing-tile .cd-btn {
  align-self: flex-start;
  margin-top: var(--cd-space-sm);
}

.landing-quote {
  text-align: center;
  padding: clamp(2rem, 5vw, 3rem) var(--cd-space-base);
}

.landing-quote blockquote {
  margin: 0 auto;
  max-width: 36ch;
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--cd-text);
  font-style: italic;
}

.landing-footer {
  border-top: 1px solid var(--cd-alum-hi);
  background: rgba(255, 255, 255, 0.35);
  padding: var(--cd-space-lg) var(--cd-grid-padding);
}

.landing-footer-row {
  max-width: 64rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--cd-space-lg);
  align-items: flex-start;
  justify-content: space-between;
}

.landing-footer-brand {
  margin: 0;
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-weight: 600;
  color: var(--cd-text);
}

.landing-footer-tag {
  margin: var(--cd-space-xs) 0 0;
  font-size: 0.8125rem;
  color: var(--cd-muted);
}

.landing-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cd-space-base);
  font-size: 0.875rem;
}

.landing-footer-nav a {
  color: var(--cd-muted);
  text-decoration: none;
}

.landing-footer-nav a:hover,
.landing-footer-nav a:focus-visible {
  color: var(--cd-text);
  text-decoration: underline;
  outline: none;
}

.landing-footer-meta a {
  color: var(--cd-muted);
}

.landing-footer-fine {
  max-width: 64rem;
  margin: var(--cd-space-lg) auto 0;
  font-size: 0.75rem;
  color: var(--cd-muted);
  text-align: center;
  padding-top: var(--cd-space-base);
  border-top: 1px solid var(--cd-alum-hi);
}

/* ── Sponsor page ──────────────────────────────────────────────────────── */

.sponsor-main {
  max-width: 40rem;
  margin: 0 auto;
  padding: var(--cd-space-xl) var(--cd-grid-padding);
}

.sponsor-hero {
  text-align: center;
  margin-bottom: var(--cd-space-xl);
}

.sponsor-hero h1 {
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 var(--cd-space-base);
}

.sponsor-hero p {
  color: var(--cd-muted);
  font-size: 1rem;
  line-height: 1.55;
  margin: 0 auto;
  max-width: 36rem;
}

.sponsor-card {
  background: var(--cd-material-seafoam);
  border: 1px solid var(--cd-alum-hi);
  border-radius: var(--cd-radius-md);
  box-shadow: var(--cd-shadow-l1);
  padding: var(--cd-space-lg);
}

.sponsor-trust {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: var(--cd-space-base);
  margin-top: var(--cd-space-xl);
}

.sponsor-trust article {
  padding: var(--cd-space-base);
  border-radius: var(--cd-radius-sm);
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid var(--cd-alum-hi);
}

.sponsor-trust h3 {
  margin: 0 0 var(--cd-space-xs);
  font-family: Satoshi, Inter, system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
}

.sponsor-trust p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--cd-muted);
  line-height: 1.5;
}

.sponsor-back {
  display: inline-flex;
  align-items: center;
  gap: var(--cd-space-xs);
  margin-bottom: var(--cd-space-base);
  color: var(--cd-muted);
  font-size: 0.875rem;
  text-decoration: none;
}

.sponsor-back:hover,
.sponsor-back:focus-visible {
  color: var(--cd-text);
  text-decoration: underline;
  outline: none;
}