:root {
  --bg: #efe5d1;
  --bg-soft: #f7f2e8;
  --surface: rgba(255, 250, 242, 0.78);
  --surface-strong: rgba(255, 250, 242, 0.94);
  --ink: #211911;
  --muted: #6b5d4e;
  --line: rgba(64, 40, 17, 0.16);
  --accent: #b85a2c;
  --accent-dark: #7a3412;
  --shadow: 0 20px 60px rgba(57, 33, 15, 0.12);
  --radius: 24px;
  --content-width: 78rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(184, 90, 44, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(89, 115, 98, 0.16), transparent 24%),
    linear-gradient(180deg, #eadcc1 0%, var(--bg) 46%, #f7f2e8 100%);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.65;
}

.home-shell,
.reader-shell {
  min-height: 100vh;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
  transition: color 150ms ease;
}

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

code {
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: rgba(44, 30, 17, 0.08);
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  font-size: 0.92em;
}

mark {
  padding: 0 0.14em;
  border-radius: 0.2em;
  background: rgba(216, 142, 84, 0.34);
  color: inherit;
  box-shadow: inset 0 -0.42em 0 rgba(236, 194, 132, 0.46);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.6);
  color: var(--ink);
  text-decoration: none;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: rgba(64, 40, 17, 0.28);
  background: rgba(255, 250, 242, 0.92);
}

.button-primary {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent) 0%, #d88e54 100%);
  color: #fff7ef;
}

.button-small {
  min-height: 2.35rem;
  padding-inline: 0.9rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent-dark);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.home-page {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.home-hero {
  position: relative;
  overflow: hidden;
  margin-top: 1rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  background:
    linear-gradient(145deg, rgba(255, 251, 246, 0.96), rgba(241, 229, 208, 0.88)),
    radial-gradient(circle at top right, rgba(184, 90, 44, 0.2), transparent 30%);
  box-shadow: var(--shadow);
}

.home-hero h1 {
  max-width: 18ch;
  margin: 0.35rem 0 0;
  font-size: clamp(2.4rem, 5.3vw, 4.5rem);
  line-height: 0.98;
}

.nowrap {
  white-space: nowrap;
}

.hero-copy {
  max-width: 42rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero-actions,
.card-meta,
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(64, 40, 17, 0.14);
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.72);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-actions {
  margin-top: 1.75rem;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.search-panel {
  margin-top: 1.5rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 4px);
  background: rgba(255, 250, 242, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.chat-panel {
  margin-top: 1.5rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 4px);
  background:
    linear-gradient(145deg, rgba(255, 251, 246, 0.94), rgba(243, 232, 214, 0.82)),
    radial-gradient(circle at top right, rgba(89, 115, 98, 0.14), transparent 26%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.chat-panel-header h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.05;
}

.chat-panel-copy,
.chat-status,
.chat-empty,
.chat-message-meta,
.chat-source {
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

.chat-panel-copy,
.chat-status,
.chat-empty {
  color: var(--muted);
}

.chat-status {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.chat-thread {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.chat-empty {
  padding: 1rem 1.1rem;
  border: 1px dashed rgba(64, 40, 17, 0.18);
  border-radius: 20px;
  background: rgba(255, 252, 247, 0.75);
}

.chat-message {
  padding: 1rem 1.05rem;
  border: 1px solid rgba(64, 40, 17, 0.12);
  border-radius: 22px;
  background: rgba(255, 252, 247, 0.88);
  box-shadow: 0 14px 32px rgba(57, 33, 15, 0.08);
}

.chat-message.is-user {
  background: rgba(255, 246, 236, 0.96);
  border-color: rgba(184, 90, 44, 0.2);
}

.chat-message.is-error {
  border-color: rgba(122, 52, 18, 0.24);
  background: rgba(255, 244, 238, 0.92);
}

.chat-message-meta {
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chat-message p {
  margin: 0.5rem 0 0;
}

.chat-form {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.chat-form textarea {
  width: 100%;
  min-height: 7rem;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(64, 40, 17, 0.18);
  border-radius: 20px;
  background: rgba(255, 252, 247, 0.96);
  color: var(--ink);
  font: inherit;
  resize: vertical;
}

.chat-form textarea:focus {
  outline: 2px solid rgba(89, 115, 98, 0.18);
  border-color: rgba(89, 115, 98, 0.48);
}

.chat-form textarea:disabled,
.chat-form button:disabled {
  opacity: 0.7;
}

.chat-actions,
.chat-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.chat-sources {
  margin-top: 0.9rem;
}

.chat-source {
  display: inline-flex;
  align-items: center;
  min-height: 1.6rem;
  padding: 0.1rem 0.6rem;
  border: 1px solid rgba(89, 115, 98, 0.22);
  border-radius: 999px;
  background: rgba(89, 115, 98, 0.08);
  color: #365245;
  font-size: 0.8rem;
  font-weight: 600;
}

.chat-source:hover {
  border-color: rgba(89, 115, 98, 0.38);
  background: rgba(89, 115, 98, 0.14);
  color: #1f3a30;
}

.search-panel-header {
  display: grid;
  gap: 0.35rem;
}

.search-panel-copy,
.search-status {
  margin: 0;
  color: var(--muted);
}

.search-field {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
}

.search-label,
.search-result-meta,
.search-result-label,
.search-context {
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

.search-label {
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.search-field input {
  width: 100%;
  min-height: 3rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(64, 40, 17, 0.18);
  border-radius: 18px;
  background: rgba(255, 252, 247, 0.96);
  color: var(--ink);
  font: inherit;
}

.search-field input:focus {
  outline: 2px solid rgba(184, 90, 44, 0.2);
  border-color: rgba(184, 90, 44, 0.5);
}

.search-status {
  margin-top: 0.85rem;
}

.search-results {
  margin-top: 1rem;
}

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

.search-result-group {
  padding: 1rem 1.05rem;
  border: 1px solid rgba(64, 40, 17, 0.14);
  border-radius: 20px;
  background: rgba(255, 252, 247, 0.88);
  box-shadow: 0 14px 32px rgba(57, 33, 15, 0.08);
}

.search-result-group-header h3 {
  margin: 0.25rem 0 0;
  font-size: 1.22rem;
  line-height: 1.1;
}

.search-result-variants {
  display: grid;
  gap: 0.75rem;
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
}

.search-result-variant + .search-result-variant {
  padding-top: 0.75rem;
  border-top: 1px solid rgba(64, 40, 17, 0.08);
}

.search-result-link {
  display: block;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.search-result-link:hover {
  color: var(--accent-dark);
}

.search-result-meta,
.search-result-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.search-result-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.search-result-group p {
  margin: 0.35rem 0 0;
}

.search-result-group p {
  color: var(--muted);
}

.search-result-label {
  display: inline-flex;
  margin-top: 0.65rem;
}

.search-result-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.55rem;
  padding: 0.1rem 0.55rem;
  border: 1px solid rgba(184, 90, 44, 0.22);
  border-radius: 999px;
  background: rgba(184, 90, 44, 0.08);
  color: var(--accent-dark);
}

.chapter-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.chapter-card.is-search-hit {
  border-color: rgba(184, 90, 44, 0.36);
  box-shadow: 0 22px 54px rgba(57, 33, 15, 0.16);
}

.card-image {
  display: block;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(184, 90, 44, 0.18), rgba(65, 92, 80, 0.1));
}

.card-image img,
.card-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-placeholder {
  display: grid;
  place-items: center;
  color: var(--accent-dark);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-copy {
  padding: 1.3rem 1.25rem 1.4rem;
}

.card-order,
.topbar-meta {
  margin: 0;
  color: var(--muted);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.86rem;
}

.card-copy h2,
.sidebar-header h1 {
  margin: 0.3rem 0 0;
  line-height: 1.02;
}

.card-copy h2 {
  font-size: 1.7rem;
}

.card-copy p:last-of-type {
  color: var(--muted);
}

.card-meta,
.badge-row {
  margin-top: 1rem;
}

.reader-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 24rem) minmax(0, 1fr);
  min-height: 100vh;
}

.reader-sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 1.4rem;
  border-right: 1px solid var(--line);
  background: rgba(250, 243, 230, 0.76);
  backdrop-filter: blur(18px);
  overflow: auto;
}

.sidebar-home {
  display: inline-flex;
  margin-bottom: 1.25rem;
  color: var(--accent-dark);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.sidebar-copy {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.variant-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.4rem 0 1.5rem;
}

.variant-link {
  display: inline-flex;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.7);
  color: var(--muted);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
}

.variant-link.active {
  border-color: var(--accent);
  background: rgba(184, 90, 44, 0.12);
  color: var(--accent-dark);
}

.chapter-list {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-link a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: start;
  padding: 0.75rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 18px;
  color: inherit;
  text-decoration: none;
  transition: background 150ms ease, border-color 150ms ease, transform 150ms ease;
}

.chapter-link a:hover,
.chapter-link.is-current a {
  border-color: var(--line);
  background: rgba(255, 250, 242, 0.68);
  transform: translateX(2px);
}

.chapter-link-order {
  min-width: 2ch;
  color: var(--accent-dark);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
}

.reader-main {
  width: min(calc(100% - 2rem), 54rem);
  margin: 0 auto;
  padding: 1.4rem 0 4rem;
}

.reader-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.reader-article {
  padding: clamp(1.4rem, 4vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.reader-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.8rem;
  align-items: center;
  margin-top: 1rem;
  padding-bottom: 2rem;
}

.reader-nav > *:last-child {
  text-align: right;
}

.reader-nav a,
.reader-nav span {
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.92rem;
}

.search-context {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(184, 90, 44, 0.2);
  border-radius: 18px;
  background: rgba(255, 247, 234, 0.82);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.site-footer {
  padding: 1.4rem 1rem 2rem;
  color: var(--muted);
  text-align: center;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.site-footer-motto {
  margin-top: 0.35rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer a {
  color: var(--accent-dark);
  font-weight: 700;
}

.prose {
  color: var(--ink);
  font-size: 1.08rem;
}

.prose > :first-child {
  margin-top: 0;
}

.prose h1,
.prose h2,
.prose h3 {
  line-height: 1.05;
}

.prose h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(2.35rem, 4.6vw, 3.75rem);
}

.prose h2 {
  margin-top: 2.6rem;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.prose h3 {
  margin-top: 1.85rem;
  font-size: 1.3rem;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote {
  margin: 1.1rem 0;
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.prose li + li {
  margin-top: 0.38rem;
}

.prose img {
  margin: 1.5rem auto;
  border-radius: 18px;
  box-shadow: 0 18px 48px rgba(57, 33, 15, 0.16);
}

.prose blockquote {
  margin-inline: 0;
  padding: 0.25rem 0 0.25rem 1rem;
  border-left: 4px solid rgba(184, 90, 44, 0.42);
  color: var(--muted);
}

.prose pre {
  overflow: auto;
  padding: 1rem;
  border-radius: 18px;
  background: #2f261f;
  color: #f6efe4;
}

.prose pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.prose a {
  color: var(--accent-dark);
}

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

@media (max-width: 980px) {
  .reader-layout {
    grid-template-columns: 1fr;
  }

  .reader-sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 720px) {
  .home-page,
  .reader-main {
    width: min(calc(100% - 1.1rem), var(--content-width));
  }

  .home-page {
    padding-top: 0.6rem;
  }

  .home-hero h1 {
    max-width: none;
  }

  .reader-topbar,
  .reader-nav {
    grid-template-columns: 1fr;
    display: grid;
  }

  .reader-nav > *:last-child {
    text-align: left;
  }
}