:root {
  color-scheme: light;
  --bg: #f6f0e4;
  --bg-strong: #efe3ca;
  --panel: rgba(255, 251, 244, 0.92);
  --panel-border: rgba(24, 44, 68, 0.14);
  --text: #17283d;
  --muted: #4f6277;
  --accent: #b45b30;
  --accent-strong: #8f4320;
  --accent-soft: rgba(180, 91, 48, 0.12);
  --shadow: 0 22px 60px rgba(20, 36, 53, 0.14);
  --max-width: 1080px;
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 210, 154, 0.5), transparent 35%),
    radial-gradient(circle at top right, rgba(57, 84, 120, 0.16), transparent 28%),
    linear-gradient(180deg, #fbf7ef 0%, var(--bg) 42%, var(--bg-strong) 100%);
  line-height: 1.65;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

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

.site-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.25rem 0 4rem;
}

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0 1.5rem;
}

.brand {
  color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid rgba(23, 40, 61, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.52);
  color: var(--text);
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  background: var(--text);
  border-color: var(--text);
  color: #fff8ee;
}

.hero,
.panel {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero {
  padding: 2.5rem;
}

.hero::after,
.panel::after {
  content: "";
  position: absolute;
  inset: auto -8% -20% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 91, 48, 0.18), transparent 65%);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  line-height: 1.15;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
}

h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.55rem, 3vw, 2rem);
}

h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
}

p,
li {
  color: var(--muted);
  font-size: 1rem;
}

.hero p {
  max-width: 44rem;
  font-size: 1.08rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(23, 40, 61, 0.06);
  color: var(--text);
  font-size: 0.94rem;
}

.grid {
  display: grid;
  gap: 1.25rem;
}

.cards {
  margin-top: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  padding: 1.4rem;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(23, 40, 61, 0.08);
  border-radius: 20px;
  transform: translateY(10px);
  opacity: 0;
  animation: rise 540ms ease forwards;
}

.card:nth-child(2) {
  animation-delay: 80ms;
}

.card:nth-child(3) {
  animation-delay: 160ms;
}

.card strong {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--text);
  font-size: 1.05rem;
}

.section-stack {
  display: grid;
  gap: 1rem;
  margin-top: 1.6rem;
}

.panel {
  padding: 1.65rem;
}

.panel p:last-child,
.panel ul:last-child {
  margin-bottom: 0;
}

.toc {
  display: grid;
  gap: 0.6rem;
  padding-left: 1.2rem;
  margin: 1rem 0 0;
}

.content {
  display: grid;
  gap: 1rem;
  margin-top: 1.8rem;
}

.content ul {
  margin: 0.6rem 0 0;
  padding-left: 1.25rem;
}

.content li + li {
  margin-top: 0.5rem;
}

.notice {
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 16px;
}

.footer {
  margin-top: 2rem;
  padding: 1.4rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-bottom: 2.5rem;
  }

  .masthead {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .panel {
    padding: 1.3rem;
    border-radius: 20px;
  }

  .meta-row {
    gap: 0.55rem;
  }
}