/* Agent Logbooks — shared styles */

:root {
  --bg: #fafaf9;
  --bg-card: #ffffff;
  --bg-muted: #f4f4f2;
  --bg-sidebar: #fbfbfa;
  --border: #e7e5e4;
  --border-strong: #d6d3d1;
  --text: #1c1917;
  --text-muted: #57534e;
  --text-soft: #78716c;
  --accent: #0d7377;
  --accent-soft: #e6f4f4;
  --accent-strong: #095659;
  --code-bg: #f7f7f5;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03), 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 4px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.06);
  --radius: 10px;
  --radius-sm: 6px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  --sidebar-w: 248px;
  --nav-h: 60px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); text-decoration: underline; text-underline-offset: 3px; }

code, kbd, pre, samp { font-family: var(--mono); font-size: 0.92em; }
code:not(pre code) {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 0.08em 0.36em;
  border-radius: 4px;
  color: var(--text);
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.5;
  font-size: 13px;
}

/* Layout primitives */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top nav */
.nav {
  border-bottom: 1px solid var(--border);
  background: rgba(250, 250, 249, 0.88);
  backdrop-filter: saturate(180%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 24px;
  max-width: 1360px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text);
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  background: var(--text);
  color: var(--bg);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); }

/* Docs layout: sidebar + content */
.docs {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  max-width: 1360px;
  margin: 0 auto;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: var(--nav-h);
  padding: 28px 16px 40px 24px;
  border-right: 1px solid var(--border);
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  background: var(--bg-sidebar);
}
.sidebar-group {
  margin-bottom: 20px;
}
.sidebar-title {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-soft);
  padding: 0 10px;
  margin: 0 0 6px;
}
.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar-nav a {
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
}
.sidebar-nav a:hover {
  background: var(--bg-muted);
  color: var(--text);
  text-decoration: none;
}
.sidebar-nav a.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}
.sidebar-nav li {
  margin: 2px 0;
}
.sidebar-nav .sub {
  padding-left: 18px;
  font-size: 13.5px;
}

.docs-content {
  padding: 44px 48px 80px;
  min-width: 0;
}
.docs-content.wide { padding-right: 32px; }

/* Hero (for overview/landing) */
.hero {
  padding: 72px 0 28px;
  max-width: 760px;
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 10px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(34px, 4.2vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 18px;
}
.hero p.lead {
  font-size: clamp(17px, 1.4vw, 19px);
  color: var(--text-muted);
  margin: 0 0 24px;
  line-height: 1.55;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 14px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn:hover { border-color: var(--text); text-decoration: none; color: var(--text); }
.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.btn-primary:hover { background: #000; color: var(--bg); border-color: #000; }

/* Sections inside docs-content */
.docs-section {
  max-width: 760px;
  padding: 44px 0 0;
}
.docs-section h2 {
  font-size: 24px;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  font-weight: 600;
}
.docs-section p.lede {
  color: var(--text-muted);
  margin: 0 0 24px;
  font-size: 16.5px;
  max-width: 62ch;
}

/* Prose content */
.prose-body {
  max-width: 760px;
}
.prose-body p { margin: 0 0 18px; color: var(--text); }
.prose-body p.lead {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 28px;
}
.prose-body strong { color: var(--text); font-weight: 600; }
.prose-body h2 {
  font-size: 22px;
  margin: 48px 0 14px;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.prose-body h3 {
  font-size: 17px;
  margin: 32px 0 10px;
  font-weight: 600;
}
.prose-body ul, .prose-body ol {
  padding-left: 22px;
  margin: 0 0 18px;
}
.prose-body li { margin: 0 0 8px; }
.prose-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}
.prose-body blockquote {
  margin: 24px 0;
  padding: 4px 18px;
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.18s ease;
  text-decoration: none;
  color: var(--text);
  min-height: 180px;
}
.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  text-decoration: none;
}
.card-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}
.card h3 {
  font-size: 15.5px;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.005em;
}
.card p {
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.55;
  margin: 0 0 12px;
  flex: 1;
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg-muted);
  color: var(--text-soft);
  border: 1px solid var(--border);
  letter-spacing: 0.01em;
}
.tag-accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
}

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.filter-group { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.filter-label {
  font-size: 11px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  margin-right: 2px;
}
.chip {
  font-size: 12.5px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
  font-family: var(--sans);
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}
.search-input {
  flex: 1;
  min-width: 200px;
  padding: 8px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: var(--bg-card);
  color: var(--text);
}
.search-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }

/* 4-criterion panel */
.criteria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 20px 0 8px;
}
.criteria-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.criteria-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.criteria-card h4 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
}
.criteria-card p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Not-this strip */
.notthis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 18px;
}
.notthis-card {
  background: var(--bg-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.notthis-card strong {
  display: block;
  font-size: 13px;
  margin-bottom: 2px;
}
.notthis-card span {
  font-size: 12.5px;
  color: var(--text-soft);
}

/* Callout */
.callout {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  background: var(--bg-card);
  margin: 24px 0;
}
.callout-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.callout p:last-child { margin-bottom: 0; }

/* Schema table */
.schema-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 16px 0 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-family: var(--mono);
}
.schema-table th, .schema-table td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.schema-table th {
  background: var(--bg-muted);
  font-weight: 600;
  color: var(--text);
  font-size: 12px;
  letter-spacing: 0.02em;
}
.schema-table tbody tr:last-child td { border-bottom: none; }
.schema-table td { color: var(--text-muted); }
.schema-table td:first-child { color: var(--text); font-weight: 500; white-space: nowrap; }

/* Data preview */
.data-preview {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  overflow-x: auto;
  color: var(--text-muted);
  white-space: pre;
  margin: 16px 0 28px;
}

/* Key-value info grid */
.kv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin: 20px 0 32px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}
.kv-item .kv-label {
  font-size: 11px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  margin-bottom: 4px;
}
.kv-item .kv-value {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

/* Breadcrumb */
.breadcrumb {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 16px;
  font-family: var(--mono);
}
.breadcrumb a { color: var(--text-soft); }
.breadcrumb a:hover { color: var(--text); text-decoration: none; }
.breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

/* Next-prev nav at bottom of pages */
.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.page-nav a {
  display: block;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  text-decoration: none;
  color: var(--text);
  transition: all 0.15s ease;
}
.page-nav a:hover {
  border-color: var(--border-strong);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}
.page-nav .label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  margin-bottom: 3px;
}
.page-nav .title {
  display: block;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
}
.page-nav .next { text-align: right; }

/* Responsive */
@media (max-width: 860px) {
  .docs {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 18px 24px;
  }
  .docs-content {
    padding: 28px 24px 60px;
  }
  .hero { padding: 44px 0 20px; }
  .page-nav { grid-template-columns: 1fr; }
  .page-nav .next { text-align: left; }
}