:root {
  color-scheme: light;
  --bg-top: #fcfaf6;
  --bg-bottom: #f1f5f2;
  --surface: rgba(255, 253, 249, 0.96);
  --surface-soft: #f7faf6;
  --surface-muted: #f2f6f1;
  --border: rgba(125, 142, 133, 0.18);
  --border-strong: rgba(93, 127, 113, 0.22);
  --text-primary: #2f3635;
  --text-secondary: #64706b;
  --accent: #5d7f71;
  --accent-soft: rgba(93, 127, 113, 0.12);
  --accent-strong: #547266;
  --warning-bg: rgba(157, 116, 94, 0.12);
  --warning-text: #7b5c4e;
  --radius-card: 24px;
  --radius-pill: 999px;
  --shadow: 0 14px 40px rgba(77, 92, 86, 0.08);
  --container-width: 780px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text-primary);
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI",
    "Yu Gothic", sans-serif;
  line-height: 1.7;
  background: transparent;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.site-shell {
  width: min(100%, var(--container-width));
  margin: 0 auto;
  padding: 20px 16px 56px;
}

.site-header {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: var(--accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
}

.brand-mark img {
  width: 24px;
  height: 24px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav a {
  padding: 8px 14px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.hero,
.section-card,
.footer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px 22px;
  margin-bottom: 16px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: var(--radius-pill);
}

h1,
h2,
h3 {
  margin: 0 0 10px;
  line-height: 1.35;
}

h1 {
  font-size: 1.9rem;
}

h2 {
  font-size: 1.25rem;
}

.lead,
.section-card p,
.meta-list dd,
.footer-card p,
li {
  color: var(--text-secondary);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  background: var(--accent);
  border: 1px solid transparent;
  color: #fff;
  font-weight: 700;
}

.button-link:hover {
  text-decoration: none;
  background: var(--accent-strong);
}

.button-link.secondary {
  background: var(--surface-muted);
  border-color: var(--border);
  color: var(--text-primary);
}

.button-link.secondary:hover {
  background: #eef3ef;
}

.button-link.is-disabled,
.button-link[aria-disabled="true"] {
  pointer-events: none;
  background: var(--surface-muted);
  border-color: var(--border);
  color: var(--text-secondary);
}

.stack {
  display: grid;
  gap: 16px;
}

.section-card {
  padding: 22px 20px;
}

.section-card ul,
.section-card ol {
  margin: 10px 0 0 1.2rem;
  padding: 0;
}

.grid {
  display: grid;
  gap: 16px;
}

.meta-list {
  display: grid;
  gap: 10px;
}

.meta-list div {
  padding: 14px 16px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.meta-list dt {
  margin: 0 0 4px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.meta-list dd {
  margin: 0;
  font-size: 0.95rem;
}

.notice,
.warning-box {
  padding: 14px 16px;
  border-radius: 18px;
}

.notice {
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.warning-box {
  background: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid rgba(157, 116, 94, 0.16);
}

.inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.inline-list span {
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: var(--radius-pill);
}

.footer-card {
  margin-top: 16px;
  padding: 18px 20px 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

.footer-links a {
  font-weight: 600;
}

.site-footer-note {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.site-visual {
  width: 100%;
  border-radius: 22px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--surface-soft);
}

code,
.mono {
  font-family:
    ui-monospace, SFMono-Regular, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

@media (min-width: 720px) {
  .site-shell {
    padding-top: 28px;
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .hero {
    padding: 34px 30px;
  }

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