:root {
  /* Claude Design handoff tokens: update this block first when final art direction arrives. */
  --color-bg: #07111f;
  --color-bg-soft: #0b1728;
  --color-panel: #101d31;
  --color-panel-strong: #14233a;
  --color-text: #f4f7fb;
  --color-muted: #aeb9ca;
  --color-gold: #d6aa4f;
  --color-gold-strong: #f0c96a;
  --color-border: rgba(244, 247, 251, 0.14);
  --color-focus: #f0c96a;
  --space-page: clamp(24px, 5vw, 72px);
  --space-section: clamp(48px, 8vw, 96px);
  --radius-card: 8px;
  --shadow-card: 0 22px 60px rgba(0, 0, 0, 0.28);
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--color-gold-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #fff1bd;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-140%);
  background: var(--color-gold);
  color: #111827;
  padding: 8px 12px;
  border-radius: 6px;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 17, 31, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.nav {
  width: min(100% - 32px, var(--max-width));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(214, 170, 79, 0.45);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(214, 170, 79, 0.22), rgba(20, 35, 58, 0.8));
  color: var(--color-gold-strong);
}

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

.nav-links a {
  color: var(--color-muted);
  padding: 10px 12px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: rgba(214, 170, 79, 0.12);
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-panel);
  color: var(--color-text);
  padding: 8px 12px;
  font: inherit;
  font-weight: 700;
}

.container {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
}

.section {
  padding: var(--space-section) 0;
}

.section-muted {
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.hero h1,
.page-header h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.4rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.hero-text,
.page-header p,
.split p {
  max-width: 720px;
  color: var(--color-muted);
  font-size: clamp(1.04rem, 2vw, 1.2rem);
}

.section-label {
  margin: 0 0 12px;
  color: var(--color-gold-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button-primary {
  background: var(--color-gold);
  color: #111827;
}

.button-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
}

.hero-panel,
.info-card,
.app-card,
.legal-document {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-card);
}

.hero-panel {
  padding: clamp(22px, 4vw, 34px);
}

.hero-panel h2,
.info-card h2,
.app-card h2 {
  margin-top: 0;
  line-height: 1.2;
}

.check-list,
.legal-document ul {
  padding-left: 1.2rem;
}

.check-list li + li,
.legal-document li + li {
  margin-top: 8px;
}

.split {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(24px, 5vw, 64px);
}

.split h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.12;
}

.card-grid,
.app-grid,
.support-grid {
  display: grid;
  gap: 18px;
}

.card-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.app-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.support-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 24px;
}

.info-card,
.app-card {
  padding: 24px;
}

.info-card p,
.app-card p,
.legal-document p,
.legal-document li {
  color: var(--color-muted);
}

.app-card {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  justify-content: space-between;
}

.status {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--color-gold-strong);
  font-size: 0.86rem;
  font-weight: 800;
}

.card-links {
  display: grid;
  gap: 8px;
  margin-top: 24px;
}

.page-header {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.notice {
  border-left: 4px solid var(--color-gold);
  background: rgba(214, 170, 79, 0.1);
  padding: 14px 16px;
}

.legal-document {
  max-width: 900px;
  padding: clamp(22px, 5vw, 48px);
}

.legal-document.compact {
  max-width: var(--max-width);
}

.legal-document section + section {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.legal-document h2 {
  margin-bottom: 10px;
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  line-height: 1.25;
}

.legal-document h3 {
  margin-top: 28px;
  color: var(--color-text);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: #050c16;
}

.footer-inner {
  display: flex;
  min-height: 96px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-muted);
}

.footer-inner nav {
  display: flex;
  gap: 14px;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
  }

  .hero-grid,
  .split,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .nav {
    min-height: auto;
    padding: 16px 0;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 12px;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 12px;
    border: 1px solid var(--color-border);
  }

  .card-grid,
  .app-grid {
    grid-template-columns: 1fr;
  }

  .button-row {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0;
  }
}

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