/* DIY Starting Point — shared styles */

:root {
  --ink: #23201b;
  --ink-soft: #57524a;
  --paper: #fbf7f1;
  --paper-raised: #ffffff;
  --line: #e6ddce;
  --accent: #c1611c;
  --accent-dark: #96480f;
  --accent-soft: #fbe7d4;
  --safe: #2f6b3a;
  --safe-bg: #e9f4ea;
  --warn: #9a4c14;
  --warn-bg: #fdefe0;
  --danger: #9c2c22;
  --danger-bg: #fbe9e6;
  --info: #2f5f8a;
  --info-bg: #e8f1f8;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(35, 32, 27, 0.06), 0 6px 20px rgba(35, 32, 27, 0.05);
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper-raised);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}

.brand .brand-mark {
  font-size: 1.4rem;
}

.site-nav {
  display: flex;
  gap: 22px;
  font-size: 0.95rem;
  font-weight: 600;
}

.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--accent-dark); }
.site-nav a.current { color: var(--accent-dark); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding: 28px 0 40px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  justify-content: space-between;
}

.site-footer nav {
  display: flex;
  gap: 18px;
}

.footer-disclaimer {
  max-width: 720px;
  margin: 0 auto 18px;
  padding: 0 20px;
  font-size: 0.82rem;
  color: var(--ink-soft);
  text-align: center;
}

/* Hero */
.hero {
  padding: 56px 0 28px;
  text-align: center;
}

.hero h1 {
  font-size: 2.3rem;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.hero p.lede {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 620px;
  margin: 0 auto 22px;
}

.hero .categories-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 18px 0 6px;
}

.pill {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-actions {
  margin-top: 22px;
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }

.btn-secondary {
  background: transparent;
  color: var(--accent-dark);
  border: 1.5px solid var(--accent);
  margin-left: 10px;
}
.btn-secondary:hover { background: var(--accent-soft); text-decoration: none; }

/* Chat panel */
.chat-panel {
  max-width: 640px;
  margin: 32px auto 12px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.chat-panel-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.chat-messages {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 160px;
  max-height: 440px;
  overflow-y: auto;
  text-align: left;
}

.chat-msg {
  max-width: 88%;
  padding: 11px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
  white-space: pre-wrap;
}

.chat-msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-msg.bot {
  align-self: flex-start;
  background: #f1ede4;
  color: var(--ink);
  border-bottom-left-radius: 4px;
}

.chat-msg.bot.excluded {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #f0cfc9;
}

.chat-msg.bot.ambiguous {
  background: var(--info-bg);
  color: var(--info);
  border: 1px solid #cfe0ee;
}

.chat-msg.bot.fallback {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid #f3ddb9;
}

.chat-msg.bot.error {
  background: #f1ede4;
  color: var(--ink-soft);
  font-style: italic;
}

.chat-msg .fallback-label,
.chat-msg .excluded-label,
.chat-msg .ambiguous-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 800;
  margin-bottom: 5px;
  opacity: 0.85;
}

.chat-msg a.article-link {
  display: inline-block;
  margin-top: 8px;
  font-weight: 700;
}

.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid var(--line);
  background: #fdfbf7;
}

.chat-input-row input {
  flex: 1;
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.95rem;
  font-family: inherit;
}

.chat-input-row input:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.chat-input-row button {
  border-radius: 999px;
  padding: 0 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 700;
  cursor: pointer;
}

.chat-input-row button:disabled {
  opacity: 0.5;
  cursor: default;
}

.chat-hint {
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 10px;
}

/* Article grid */
.category-section {
  margin: 40px 0;
}

.category-section h2 {
  font-size: 1.35rem;
  margin-bottom: 4px;
}

.category-section .category-count {
  color: var(--ink-soft);
  font-size: 0.88rem;
  margin-bottom: 16px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.article-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.article-card .meta {
  font-size: 0.82rem;
  color: var(--ink-soft);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.article-card .overview-snippet {
  font-size: 0.9rem;
  color: var(--ink-soft);
  flex: 1;
}

.article-card .card-link {
  font-weight: 700;
  font-size: 0.88rem;
}

.difficulty-badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 2px 9px;
  font-weight: 700;
}

/* Article detail */
.article-detail {
  max-width: 760px;
  margin: 0 auto;
  padding: 36px 0 20px;
}

.article-detail .breadcrumb {
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.article-detail h1 {
  margin: 0 0 8px;
  font-size: 1.9rem;
}

.article-detail .top-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 20px;
}

.article-detail section {
  margin: 28px 0;
}

.article-detail h2 {
  font-size: 1.2rem;
  border-bottom: 2px solid var(--accent-soft);
  padding-bottom: 6px;
  margin-bottom: 12px;
}

.article-detail ul, .article-detail ol {
  padding-left: 22px;
  margin: 0;
}

.article-detail li { margin-bottom: 7px; }

.method-block {
  margin-bottom: 18px;
  padding: 14px 16px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.method-block h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--accent-dark);
}

.safety-list li { color: var(--warn); }
.safety-box {
  background: var(--warn-bg);
  border: 1px solid #f3ddb9;
  border-radius: var(--radius);
  padding: 16px 18px;
}
.safety-box h2 { border-bottom-color: #f3ddb9; }
.safety-box li { color: var(--warn); }

.pro-box {
  background: var(--info-bg);
  border: 1px solid #cfe0ee;
  border-radius: var(--radius);
  padding: 16px 18px;
}
.pro-box h2 { border-bottom-color: #cfe0ee; }

.sources-list li {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.cost-line {
  display: inline-block;
  background: var(--safe-bg);
  color: var(--safe);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-weight: 700;
}

.not-found {
  text-align: center;
  padding: 80px 0;
  color: var(--ink-soft);
}

/* Terms page */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 0;
}
.legal h1 { margin-bottom: 6px; }
.legal .updated { color: var(--ink-soft); font-size: 0.88rem; margin-bottom: 28px; }
.legal h2 { font-size: 1.15rem; margin-top: 30px; }
.legal p, .legal li { color: var(--ink-soft); }

@media (max-width: 600px) {
  .hero h1 { font-size: 1.7rem; }
  .site-nav { gap: 12px; font-size: 0.85rem; }
  .article-detail h1 { font-size: 1.5rem; }
}