:root {
  color-scheme: light;
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --ink: #162031;
  --muted: #5d6778;
  --line: #d8deea;
  --brand: #0f5c4d;
  --brand-strong: #0b3f35;
  --accent: #8f4f14;
  --radius: 8px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.topbar .container {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.brand small {
  display: block;
  color: var(--muted);
  font-weight: 600;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}

.hero {
  padding: 44px 0 24px;
}

.hero-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.panel h1 {
  margin: 6px 0 10px;
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  line-height: 1.1;
}

.panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.eyebrow {
  margin: 0;
  color: var(--brand);
  font-size: 0.85rem;
  text-transform: uppercase;
  font-weight: 700;
}

.actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--brand-strong);
  color: #fff;
}

.button.secondary {
  border-color: var(--line);
  color: var(--ink);
  background: var(--surface);
}

.meta-grid {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.meta-item {
  border: 1px solid var(--line);
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 10px 12px;
}

.meta-item strong {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
}

.meta-item code {
  display: block;
  margin-top: 4px;
  overflow-wrap: anywhere;
  font-family: "Cascadia Code", Consolas, monospace;
  color: var(--ink);
}

.doc {
  padding: 24px 0 40px;
}

.doc article {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.doc h1 {
  margin: 8px 0 12px;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
}

.doc h2 {
  margin: 24px 0 8px;
  font-size: 1.08rem;
}

.doc p,
.doc li {
  color: var(--muted);
  line-height: 1.6;
}

.doc ul {
  margin: 0;
  padding-left: 18px;
}

.doc a,
.panel a,
.nav a {
  letter-spacing: 0;
}

.callback-status {
  margin-top: 14px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 12px;
}

.callback-status strong {
  display: block;
  margin-bottom: 6px;
}

.callback-status.ok strong {
  color: var(--brand);
}

.callback-status.warn strong {
  color: var(--accent);
}

.callback-actions {
  margin-top: 10px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

button.button {
  cursor: pointer;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.3fr 1fr;
  }
}