:root {
  --bg: #f4f7f2;
  --bg-accent: #e8f0e2;
  --surface: #ffffff;
  --text: #1a1c1c;
  --muted: #5f5e5e;
  --hint: #827660;
  --accent: #3e6a00;
  --accent-soft: rgba(162, 220, 96, 0.16);
  --gold: #785900;
  --gold-soft: rgba(255, 193, 7, 0.14);
  --border: #e2e2e2;
  --radius: 20px;
  --max: 720px;
  --font: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.65;
  background:
    radial-gradient(ellipse 90% 55% at 10% -10%, var(--gold-soft), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 0%, var(--accent-soft), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-accent) 100%);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--gold);
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  color: inherit;
  text-decoration: none;
}

.brand strong {
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.brand span {
  font-size: 0.8rem;
  color: var(--muted);
}

.lang {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  border-radius: 999px;
  background: #f3f3f3;
}

.lang button {
  border: 0;
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.lang button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.hero {
  margin-bottom: 1.75rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 36rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.25rem 0 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
  background: var(--gold-soft);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.35rem;
  box-shadow: 0 8px 28px rgba(26, 28, 28, 0.04);
}

.toc {
  margin: 0 0 1.5rem;
  padding: 1rem 1.1rem;
  border-radius: 16px;
  background: #f9f9f9;
  border: 1px solid var(--border);
}

.toc strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.toc a {
  color: inherit;
  text-decoration: none;
}

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

article section {
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
}

article section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

article h2 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

article p,
article li {
  color: #3a3a3a;
  font-size: 0.95rem;
}

article ul {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

article li + li {
  margin-top: 0.35rem;
}

.note {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
}

.site-footer {
  margin-top: 2rem;
  color: var(--hint);
  font-size: 0.85rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.75rem;
}

.home-card {
  display: grid;
  gap: 1rem;
}

.home-card a.card-link {
  display: block;
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.home-card a.card-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(26, 28, 28, 0.08);
}

.home-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.home-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

[hidden] {
  display: none !important;
}

@media (min-width: 640px) {
  .panel {
    padding: 2rem;
  }
}