:root {
  /* Brief sunset palette + cube accents */
  --bg-top: #2b2135;
  --bg-mid: #1a161f;
  --bg-bottom: #120f16;
  --text: #fbf3e6;
  --muted: #c9a882;
  --accent-red: #f8462d;
  --accent-green: #68cb8f;
  --accent-yellow: #fdd31a;
  --max: 42rem;
}

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

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Nunito", "Segoe UI", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(110% 60% at 18% -8%, rgba(248, 70, 45, 0.16) 0%, transparent 52%),
    linear-gradient(165deg, var(--bg-top) 0%, var(--bg-mid) 55%, var(--bg-bottom) 100%);
  background-attachment: fixed;
}

a {
  color: var(--accent-yellow);
  text-underline-offset: 0.15em;
}

a:hover,
a:focus-visible {
  color: var(--text);
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.lang-switch {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.lang-switch a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.lang-switch a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent-yellow);
}

.brand {
  display: inline-flex;
  align-items: center;
  margin-bottom: 1.75rem;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  display: block;
  width: min(220px, 58vw);
  height: auto;
}

.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0 0 1.5rem;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
  margin: 0 0 0.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.25rem;
  margin: 2.25rem 0 0.75rem;
  scroll-margin-top: 1.25rem;
}

p,
li {
  color: color-mix(in srgb, var(--text) 92%, var(--muted));
}

ul {
  padding-left: 1.2rem;
}

.toc {
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.1rem;
  border: 1px solid color-mix(in srgb, var(--muted) 35%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-top) 40%, transparent);
}

.toc strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
}

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

.toc a:hover {
  color: var(--accent-yellow);
}

.summary {
  border-left: 3px solid var(--accent-green);
  padding: 0.25rem 0 0.25rem 1rem;
  margin: 1.25rem 0 1.75rem;
}

.footer {
  margin-top: 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid color-mix(in srgb, var(--muted) 30%, transparent);
  color: var(--muted);
  font-size: 0.92rem;
}

.card-list {
  display: grid;
  gap: 0.85rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.card-list a {
  display: block;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--muted) 35%, transparent);
  background: color-mix(in srgb, var(--bg-top) 35%, transparent);
  text-decoration: none;
  color: var(--text);
}

.card-list a:hover {
  border-color: var(--accent-yellow);
}

.card-list span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.25rem;
}

.faq dt {
  font-weight: 700;
  margin-top: 1.25rem;
}

.faq dd {
  margin: 0.35rem 0 0;
}

.hero-home {
  margin-bottom: 0.5rem;
}

.hero-home .brand-logo {
  width: min(280px, 72vw);
  margin-bottom: 1.25rem;
}

.accent-bar {
  display: flex;
  gap: 0.4rem;
  margin: 1.25rem 0 1.75rem;
}

.accent-bar span {
  width: 1.75rem;
  height: 0.35rem;
  border-radius: 999px;
}

.accent-bar .r { background: var(--accent-red); }
.accent-bar .g { background: var(--accent-green); }
.accent-bar .y { background: var(--accent-yellow); }