/* Natural Herb Library — Base Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #222;
  background: #fafaf8;
}

.site-header {
  background: #2d5a27;
  color: #fff;
  padding: 0.75rem 1.5rem;
}

.site-header a { color: #c8e6c4; text-decoration: none; }

.breadcrumb ol { list-style: none; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.breadcrumb li + li::before { content: '›'; margin-right: 0.5rem; opacity: 0.6; }

#main-content {
  max-width: 860px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* Notices */
.notice {
  padding: 0.75rem 1rem;
  border-left: 4px solid;
  border-radius: 4px;
  margin-bottom: 1.5rem;
}
.notice--stub   { border-color: #aaa; background: #f5f5f5; }
.notice--amber  { border-color: #e6a817; background: #fffbf0; }
.notice--red    { border-color: #c0392b; background: #fff5f5; }

/* Monograph */
.monograph__header { margin-bottom: 1.5rem; }
.monograph__name   { font-size: 2rem; font-weight: 700; color: #1a3a17; }
.monograph__names  { margin-top: 0.5rem; display: grid; grid-template-columns: 6rem 1fr; gap: 0.25rem 0.75rem; font-size: 0.9rem; }
.monograph__names dt { font-weight: 600; color: #555; }

.monograph section { margin-bottom: 2rem; }
.monograph h2 { font-size: 1.25rem; color: #2d5a27; border-bottom: 2px solid #c8e6c4; padding-bottom: 0.25rem; margin-bottom: 0.75rem; }
.monograph h3 { font-size: 1rem; font-weight: 600; margin: 0.75rem 0 0.4rem; }
.monograph ul  { padding-left: 1.5rem; }
.monograph dl  { display: grid; grid-template-columns: 10rem 1fr; gap: 0.3rem 0.75rem; }
.monograph dt  { font-weight: 600; color: #555; }

/* Error page */
.error-page { text-align: center; padding: 3rem 1rem; }
.error-page h1 { font-size: 5rem; color: #ccc; }
.error-page p  { margin: 1rem 0; color: #666; }
.error-page a  { color: #2d5a27; }

.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.8rem;
  color: #888;
  border-top: 1px solid #e0e0e0;
  margin-top: 3rem;
}

/* Home page */
.home-hero {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
}
.home-hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: #1a3a17;
  margin-bottom: 0.5rem;
}
.hero-sub {
  color: #555;
  margin-bottom: 1.25rem;
}

.herb-search {
  display: inline-flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.herb-search input[type="search"] {
  padding: 0.5rem 0.75rem;
  border: 1px solid #aaa;
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: inherit;
  width: 280px;
}
.herb-search input[type="search"]:focus { outline: 2px solid #2d5a27; border-color: #2d5a27; }
.herb-search button {
  padding: 0.5rem 1.1rem;
  background: #2d5a27;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 0.95rem;
  cursor: pointer;
}
.herb-search button:hover { background: #1a3a17; }

.herb-index { margin-top: 2rem; }
.herb-index h2 {
  font-size: 1.35rem;
  color: #1a3a17;
  border-bottom: 2px solid #c8e6c4;
  padding-bottom: 0.35rem;
  margin-bottom: 1rem;
}

.herb-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.4rem 1.5rem;
}
.herb-list__item {
  padding: 0.35rem 0;
  border-bottom: 1px solid #eee;
  font-size: 0.95rem;
}
.herb-list__item a { color: #2d5a27; text-decoration: none; font-weight: 600; }
.herb-list__item a:hover { text-decoration: underline; }
.herb-list__pinyin { color: #666; margin-left: 0.4rem; }
.herb-list__chinese { color: #888; margin-left: 0.25rem; font-size: 0.9rem; }

.no-herbs { color: #888; font-style: italic; text-align: center; margin-top: 2rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* AI Herb Query Widget */
.herb-query {
  background: #f0f7f0;
  border: 1px solid #c8e6c4;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 2rem 0;
}
.herb-query__title { font-size: 1.15rem; color: #1a3a17; margin-bottom: .35rem; }
.herb-query__intro { font-size: .9rem; color: #555; margin-bottom: 1rem; }
.herb-query__row   { display: flex; gap: .5rem; align-items: flex-end; flex-wrap: wrap; }
.herb-query__label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .25rem; width: 100%; }
.herb-query__input {
  flex: 1 1 260px;
  padding: .55rem .75rem;
  border: 1px solid #aaa;
  border-radius: 4px;
  font-size: .95rem;
  font-family: inherit;
  min-width: 0;
}
.herb-query__input:focus { outline: 2px solid #2d5a27; border-color: #2d5a27; }
.herb-query__submit {
  padding: .55rem 1.25rem;
  background: #2d5a27;
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: .95rem;
  cursor: pointer;
  white-space: nowrap;
}
.herb-query__submit:hover  { background: #1a3a17; }
.herb-query__submit:disabled { opacity: .6; cursor: not-allowed; }
.herb-query__output   { margin-top: 1.25rem; }
.herb-query__loading  { color: #555; font-style: italic; }
.herb-query__error    { color: #c0392b; }
.herb-query__answer   { }
.herb-query__answer p { margin-bottom: .75rem; }
.herb-query__answer a { color: #2d5a27; font-weight: 600; }
.herb-query__disclaimer { font-size: .82rem; color: #777; margin-top: .75rem; font-style: italic; }
.herb-query__herbs-used { font-size: .82rem; color: #555; margin-top: .5rem; }
.herb-query__herbs-used a { color: #2d5a27; }
.herb-query__note { font-size: .8rem; color: #888; margin-top: 1rem; }