:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --card: #ffffff;
  --border: rgba(17, 24, 39, 0.12);
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
  --accent: #111827;
  --accent-2: #2563eb;
  --radius: 16px;
  --max: 960px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --text: #eef2ff;
    --muted: rgba(238, 242, 255, 0.72);
    --card: rgba(255, 255, 255, 0.04);
    --border: rgba(238, 242, 255, 0.12);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    --accent: #eef2ff;
    --accent-2: #60a5fa;
  }
}

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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, rgba(37, 99, 235, 0.08), transparent 60%),
    radial-gradient(900px 500px at 90% 0%, rgba(17, 24, 39, 0.06), transparent 55%), var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  line-height: 1.6;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  z-index: 50;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
}

.brand__title {
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand__subtitle {
  color: var(--muted);
  font-size: 14px;
  margin-top: 2px;
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav__link {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
  cursor: default;
  user-select: none;
}

.nav__link:hover {
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}

main {
  padding-block: 26px 44px;
}

.hero {
  padding: 14px 0 24px;
}

h1 {
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.15;
  margin: 0 0 10px;
  letter-spacing: -0.03em;
}

.hero__lead {
  margin: 0 0 14px;
  color: var(--muted);
  max-width: 70ch;
}

.meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding-top: 10px;
}

@media (min-width: 640px) {
  .meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.meta__item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: color-mix(in srgb, var(--card) 84%, transparent);
}

.meta__label {
  display: block;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.meta__value {
  display: inline-block;
  margin-top: 6px;
  font-weight: 600;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-top: 18px;
}

h2 {
  margin: 0 0 10px;
  font-size: 20px;
  letter-spacing: -0.01em;
}

h3 {
  margin: 18px 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

p {
  margin: 10px 0;
  color: color-mix(in srgb, var(--text) 88%, var(--muted));
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 14px;
}

@media (min-width: 820px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

.panel {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 16px 6px;
  background: color-mix(in srgb, var(--card) 90%, transparent);
}

.list {
  margin: 10px 0 14px;
  padding-left: 18px;
  color: color-mix(in srgb, var(--text) 86%, var(--muted));
}

.list li {
  margin: 8px 0;
}

.divider {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: var(--bg);
  font-weight: 650;
  letter-spacing: -0.01em;
}

.button--static {
  user-select: none;
  cursor: default;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  color: var(--text);
}

.cta__hint {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  margin-top: 22px;
  padding-top: 10px;
  color: var(--muted);
}

.site-footer__inner {
  display: flex;
  gap: 10px 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  font-size: 14px;
}

.site-footer__links {
  display: flex;
  gap: 12px;
}

.site-footer__links span {
  color: inherit;
  padding: 6px 8px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: default;
  user-select: none;
  opacity: 0.85;
}