:root {
  color-scheme: light;
  --ink: #1f2933;
  --muted: #5d6975;
  --line: #d7dee6;
  --surface: #ffffff;
  --soft: #f5f7fa;
  --accent: #136f63;
  --accent-strong: #0b4f47;
  --warn: #8a5a00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--accent-strong);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

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

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #0b4f47 0%, #22a06b 52%, #ffbf47 52%, #ffbf47 100%);
  box-shadow: inset 0 0 0 1px rgba(31, 41, 51, 0.12);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  background: #e8f4f1;
  color: var(--accent-strong);
}

main {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero {
  padding: 36px 0 26px;
}

.kicker {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 4.7rem);
  line-height: 0.98;
}

.hero-copy {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.13rem;
}

.updated {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.panel,
.link-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(31, 41, 51, 0.06);
}

.panel {
  margin: 18px 0;
  padding: clamp(18px, 3vw, 28px);
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.panel p {
  margin: 0;
  color: var(--muted);
}

.panel ul {
  margin: 10px 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

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

code {
  padding: 2px 5px;
  border-radius: 6px;
  background: #eef1f4;
  color: var(--warn);
  font-size: 0.92em;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.link-card {
  display: grid;
  gap: 10px;
  min-height: 160px;
  padding: 22px;
  text-decoration: none;
}

.link-card span {
  color: var(--accent-strong);
  font-weight: 800;
}

.link-card strong {
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.35;
}

.support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 24px;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.button.disabled {
  color: var(--muted);
  cursor: not-allowed;
}

.site-footer {
  padding: 26px clamp(20px, 4vw, 56px);
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.92rem;
  text-align: center;
}

.site-footer p {
  margin: 6px 0;
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

  h1 {
    font-size: 2.5rem;
  }
}