* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--cp-link);
}

a:hover {
  color: var(--cp-accent-hover);
}

img {
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 0.625rem;
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
}

.skip-link:focus {
  left: 8px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--cp-border);
  background: var(--cp-panel-strong);
}

.nav-shell,
.page-shell,
.footer-shell {
  width: min(1240px, calc(100% - 32px));
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--cp-text);
  font-size: 1.1rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 0.625rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px;
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 0.625rem;
  color: var(--cp-text-muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--cp-accent-soft);
  color: var(--cp-accent);
}

.site-nav .nav-app {
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
}

.site-nav .nav-app:hover {
  background: var(--cp-accent-hover);
  color: var(--cp-accent-fg);
}

.page-shell {
  padding-block: 56px 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: 48px;
  padding-block: 28px 56px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--cp-accent);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  letter-spacing: -0.045em;
}

.hero-title {
  max-width: none;
  font-size: clamp(2.4rem, 4vw, 3.15rem);
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

.page-title {
  font-size: clamp(2.2rem, 6vw, 4rem);
}

.support-title {
  font-size: clamp(2.2rem, 4vw, 3.25rem);
  white-space: nowrap;
}

.support-title span {
  white-space: nowrap;
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(1.65rem, 4vw, 2.35rem);
}

h3 {
  margin: 0 0 8px;
}

.lead {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--cp-text-muted);
  font-size: 1.17rem;
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
  color: var(--cp-text);
  font-weight: 750;
  text-decoration: none;
}

.button:hover {
  border-color: var(--cp-border-strong);
  color: var(--cp-accent);
}

.button.primary {
  border-color: var(--cp-accent);
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
}

.button.primary:hover {
  background: var(--cp-accent-hover);
  color: var(--cp-accent-fg);
}

html[data-theme="dark"] .site-nav a:hover,
html[data-theme="dark"] .site-nav a[aria-current="page"] {
  background: var(--cp-surface-soft);
  color: var(--cp-text);
}

html[data-theme="dark"] .site-nav .nav-app {
  border: 1px solid var(--cp-border-strong);
  background: var(--cp-surface);
  color: var(--cp-text);
}

html[data-theme="dark"] .site-nav .nav-app:hover {
  background: var(--cp-surface-soft);
  color: var(--cp-text);
}

html[data-theme="dark"] .eyebrow {
  color: var(--cp-text-soft);
}

html[data-theme="dark"] .lead,
html[data-theme="dark"] .muted,
html[data-theme="dark"] .footer-shell,
html[data-theme="dark"] .footer-links a {
  color: var(--cp-text-soft);
}

html[data-theme="dark"] .button:hover {
  color: var(--cp-text);
}

html[data-theme="dark"] .button.primary {
  border-color: var(--cp-text);
  background: var(--cp-text);
  color: var(--cp-surface);
}

html[data-theme="dark"] .button.primary:hover {
  border-color: var(--cp-text-soft);
  background: var(--cp-text-soft);
  color: var(--cp-surface);
}

.hero-mark {
  display: grid;
  place-items: center;
  min-height: 360px;
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  background: var(--cp-surface);
  box-shadow: 0 0 2px var(--cp-border), 0 1px 2px var(--cp-border);
}

.hero-mark img {
  width: min(300px, 75%);
  border-radius: 16px;
}

.section {
  padding-block: 32px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.muted {
  color: var(--cp-text-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card,
.content-card,
.callout {
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  background: var(--cp-surface);
  box-shadow: 0 0 2px var(--cp-border), 0 1px 2px var(--cp-border);
}

.card {
  padding: 24px;
}

.card-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 0.625rem;
  background: var(--cp-accent-soft);
  color: var(--cp-accent);
  font-size: 1.35rem;
  font-weight: 800;
}

.card p {
  margin-bottom: 0;
  color: var(--cp-text-muted);
}

.content-card {
  max-width: 880px;
  padding: clamp(24px, 5vw, 48px);
}

.content-card > :first-child {
  margin-top: 0;
}

.content-card h2 {
  margin-top: 36px;
  font-size: 1.55rem;
}

.content-card h3 {
  margin-top: 24px;
}

.content-card li + li {
  margin-top: 8px;
}

.callout {
  padding: 20px 22px;
  border-left: 5px solid var(--cp-accent);
  background: var(--cp-accent-soft);
}

.callout p {
  margin: 0;
}

.faq-list {
  display: grid;
  max-width: 900px;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  background: var(--cp-surface);
}

.faq-list summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 750;
}

.faq-list details[open] summary {
  border-bottom: 1px solid var(--cp-border);
  color: var(--cp-accent);
}

.faq-list details p {
  margin: 0;
  padding: 18px 20px 22px;
  color: var(--cp-text-muted);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.steps {
  padding-left: 22px;
}

.steps li + li {
  margin-top: 10px;
}

.site-footer {
  border-top: 1px solid var(--cp-border);
  background: var(--cp-bg-elevated);
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-block: 28px;
  color: var(--cp-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--cp-text-muted);
}

code {
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--cp-surface-soft);
  font-family: Consolas, "Courier New", Courier, monospace;
}

@media (max-width: 820px) {
  .nav-shell {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 12px;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }

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

  .hero-title span {
    white-space: normal;
  }

  .hero-mark {
    min-height: 280px;
  }

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

@media (max-width: 560px) {
  .nav-shell,
  .page-shell,
  .footer-shell {
    width: min(100% - 24px, 1120px);
  }

  .site-nav a {
    padding: 7px 8px;
    font-size: 0.85rem;
  }

  .page-shell {
    padding-block: 36px 52px;
  }

  .support-title {
    white-space: normal;
  }

  .hero {
    gap: 28px;
    padding-block: 8px 36px;
  }

  .hero-actions .button,
  .button-row .button {
    width: 100%;
  }

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