/* preview.css — rendered markdown pages (docs/preview/*.html)
   Shares the Claude-inspired editorial palette and typography with the
   landing page (docs/styles.css), but styled as a reading surface rather
   than a product page. */

:root {
  --bg:        #f5f4ed;       /* warm parchment */
  --surface:   #faf9f5;       /* ivory card */
  --surface-2: #ffffff;       /* pure white — for inline cards */
  --ink:       #1f1e1b;       /* near-black, warm */
  --ink-dim:   #4a4944;       /* body text tone */
  --ink-soft:  #87867f;       /* stone gray */
  --rule:      rgba(0, 0, 0, 0.08);
  --rule-soft: rgba(0, 0, 0, 0.04);
  --accent:    #c96442;       /* terracotta — reserved */
  --accent-2:  #d97757;       /* coral */
  --dark-bg:   #141311;       /* dark section */
  --dark-fg:   #f5f4ed;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:  "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --shadow-whisper: 0 4px 24px rgba(0, 0, 0, 0.05);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink-dim);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  font-size: 16.5px;
}

/* ---------- nav ---------- */

.preview-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 244, 237, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.preview-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.brand-accent { color: var(--accent); }
.preview-nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  font-size: 14.5px;
}
.preview-nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 120ms;
}
.preview-nav-links a:hover { color: var(--accent); }
.preview-source {
  padding: 6px 12px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13.5px;
}

/* ---------- reading surface ---------- */

.preview-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 28px 96px;
}
.preview-article {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  line-height: 1.66;
  color: var(--ink-dim);
}
.preview-article > *:first-child { margin-top: 0; }

/* Headings */
.preview-article h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 0.4em;
}
.preview-article h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 2.2em 0 0.6em;
  padding-top: 0.4em;
  border-top: 1px solid var(--rule-soft);
}
.preview-article h3 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin: 1.6em 0 0.4em;
}
.preview-article h4, .preview-article h5, .preview-article h6 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15.5px;
  color: var(--ink);
  margin: 1.4em 0 0.4em;
}

/* Heading anchors from markdown-it-anchor (header-link wrap) */
.preview-article h1 a,
.preview-article h2 a,
.preview-article h3 a,
.preview-article h4 a,
.preview-article h5 a,
.preview-article h6 a {
  color: inherit;
  text-decoration: none;
}
.preview-article h1 a:hover,
.preview-article h2 a:hover,
.preview-article h3 a:hover {
  color: var(--accent);
}

/* Body text */
.preview-article p { margin: 0 0 1em; }
.preview-article a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.preview-article a:hover {
  text-decoration-thickness: 2px;
}

.preview-article strong { color: var(--ink); font-weight: 500; }
.preview-article em { font-style: italic; }

/* Lists */
.preview-article ul, .preview-article ol {
  padding-left: 1.4em;
  margin: 0 0 1em;
}
.preview-article li { margin-bottom: 0.3em; }
.preview-article li > p { margin-bottom: 0.4em; }

/* Blockquote */
.preview-article blockquote {
  margin: 1.4em 0;
  padding: 0.2em 1.2em;
  border-left: 3px solid var(--accent);
  color: var(--ink);
  background: var(--surface);
  font-style: italic;
}

/* Horizontal rule */
.preview-article hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.2em 0;
}

/* Tables */
.preview-article table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.2em 0;
  font-family: var(--sans);
  font-size: 15px;
}
.preview-article th,
.preview-article td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.preview-article th {
  background: var(--surface);
  font-weight: 500;
  color: var(--ink);
  border-bottom: 2px solid var(--rule);
}
.preview-article tbody tr:hover {
  background: rgba(0, 0, 0, 0.015);
}

/* Inline code */
.preview-article code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface);
  padding: 0.12em 0.42em;
  border-radius: 4px;
  color: var(--ink);
  border: 1px solid var(--rule-soft);
}

/* Code blocks */
.preview-article pre {
  margin: 1.2em 0;
  padding: 16px 18px;
  background: var(--dark-bg);
  color: var(--dark-fg);
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.55;
  box-shadow: var(--shadow-whisper);
}
.preview-article pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.preview-article pre.hljs { background: var(--dark-bg); color: var(--dark-fg); }

/* hljs tokens — warm palette, muted not neon */
.hljs-comment, .hljs-quote          { color: #87867f; font-style: italic; }
.hljs-keyword, .hljs-selector-tag,
.hljs-addition                       { color: #d97757; }
.hljs-number, .hljs-string,
.hljs-meta .hljs-string,
.hljs-literal, .hljs-doctag,
.hljs-regexp                         { color: #e9b380; }
.hljs-title, .hljs-section,
.hljs-name, .hljs-selector-id,
.hljs-selector-class                 { color: #c96442; font-weight: 500; }
.hljs-attribute, .hljs-attr,
.hljs-variable, .hljs-template-variable,
.hljs-class .hljs-title, .hljs-type  { color: #f5f4ed; }
.hljs-symbol, .hljs-bullet,
.hljs-subst, .hljs-meta, .hljs-link  { color: #c2a68a; }
.hljs-built_in, .hljs-deletion       { color: #a8a5a0; }
.hljs-emphasis                       { font-style: italic; }
.hljs-strong                         { font-weight: 600; }

/* Images */
.preview-article img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

/* Footer */
.preview-footer {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 14px;
}
.preview-footer a { color: var(--accent); text-decoration: none; }
.preview-footer a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 640px) {
  .preview-nav-inner { padding: 12px 18px; gap: 12px; }
  .preview-nav-links { gap: 14px; font-size: 13.5px; }
  .preview-source { display: none; }
  .preview-main { padding: 36px 20px 72px; }
  .preview-article { font-size: 17px; }
  .preview-article h1 { font-size: 28px; }
  .preview-article h2 { font-size: 22px; }
  .preview-article pre { font-size: 12.5px; }
}

/* =====================================================================
   Trial timelines (tool profile pages only)
   Pure-CSS tabs using sibling selectors on hidden radio inputs.
   ===================================================================== */

.trial-timelines {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
}

.trial-timelines h2 {
  margin: 0 0 0.6em;
}

.trial-intro {
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 2rem;
}

.trial-intro code {
  background: var(--surface-2);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.85em;
}

.trial-tabs { position: relative; }

.trial-tabs > input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.trial-tab-bar {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.trial-tab-label {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  margin-bottom: -1px;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.trial-tab-label:hover { color: var(--ink); }

.trial-tab-count {
  font-size: 0.78rem;
  color: var(--ink-soft);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}

.trial-tab-disabled { opacity: 0.4; cursor: not-allowed; }
.trial-tab-disabled:hover { color: var(--ink-soft); }

.trial-tabs > input:nth-of-type(1):checked ~ .trial-tab-bar .trial-tab-label:nth-of-type(1),
.trial-tabs > input:nth-of-type(2):checked ~ .trial-tab-bar .trial-tab-label:nth-of-type(2),
.trial-tabs > input:nth-of-type(3):checked ~ .trial-tab-bar .trial-tab-label:nth-of-type(3) {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.trial-tab-panel { display: none; }

.trial-tabs > input:nth-of-type(1):checked ~ .trial-tab-panels > .trial-tab-panel:nth-of-type(1),
.trial-tabs > input:nth-of-type(2):checked ~ .trial-tab-panels > .trial-tab-panel:nth-of-type(2),
.trial-tabs > input:nth-of-type(3):checked ~ .trial-tab-panels > .trial-tab-panel:nth-of-type(3) {
  display: block;
}

/* ---- Trial card ---- */

.trial-card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-whisper);
}

.trial-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.trial-card-title {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.trial-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.15rem 0.55rem;
  background: var(--ink);
  color: var(--dark-fg);
  border-radius: 4px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.trial-card-time {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-family: var(--sans);
  font-variant-numeric: tabular-nums;
}

.trial-card-diff {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.trial-chip-sm {
  display: inline-block;
  padding: 0.12rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  background: var(--surface-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
}

.trial-chip-sm.trial-chip-plus {
  color: #2d7a4f;
  border-color: rgba(45, 122, 79, 0.3);
  background: rgba(45, 122, 79, 0.06);
}

.trial-chip-sm.trial-chip-minus {
  color: #a04040;
  border-color: rgba(160, 64, 64, 0.3);
  background: rgba(160, 64, 64, 0.06);
}

.trial-prompt {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-dim);
  margin: 0 0 1.25rem;
  font-size: 0.98rem;
  line-height: 1.55;
  border-left: 2px solid var(--rule);
  padding-left: 1rem;
}

.trial-chip-row {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.trial-chip-row .trial-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: var(--surface-2);
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-family: var(--sans);
}

.trial-chip-row .trial-chip strong {
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

/* ---- Bash breakdown bar ---- */

.trial-bar-section { margin-bottom: 1.25rem; }

.trial-bar-title {
  font-family: var(--sans);
  font-size: 0.76rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.45rem;
}

.trial-bar {
  display: flex;
  height: 10px;
  width: 100%;
  border-radius: 5px;
  overflow: hidden;
  background: var(--rule);
}

.trial-bar-seg {
  height: 100%;
  transition: filter 0.15s ease;
}

.trial-bar-seg:hover { filter: brightness(0.92); }

.trial-bar-legend {
  list-style: none;
  padding: 0;
  margin: 0.55rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-family: var(--sans);
}

.trial-bar-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.trial-bar-legend strong {
  color: var(--ink-dim);
  font-family: var(--mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin-left: 0.2rem;
}

/* ---- Collapsible details ---- */

.trial-details {
  margin-top: 1rem;
  border-top: 1px dashed var(--rule);
  padding-top: 0.75rem;
}

.trial-details summary {
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--ink-dim);
  cursor: pointer;
  padding: 0.2rem 0;
  list-style: none;
}

.trial-details summary::-webkit-details-marker { display: none; }
.trial-details summary::marker { content: ""; }

.trial-details summary::before {
  content: "▸";
  display: inline-block;
  width: 1.1em;
  color: var(--ink-soft);
  font-size: 0.85em;
  transition: transform 0.12s ease;
}

.trial-details[open] summary::before { content: "▾"; }

.trial-details summary:hover { color: var(--ink); }

.trial-list {
  list-style: none;
  padding: 0.5rem 0 0.25rem 1.5em;
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-dim);
}

.trial-list li {
  padding: 0.22rem 0;
  line-height: 1.5;
}

.trial-list-mono li {
  font-family: var(--mono);
  font-size: 0.82rem;
}

.trial-list code {
  background: var(--surface-2);
  padding: 0.08rem 0.3rem;
  border-radius: 3px;
  font-size: 0.82rem;
  border: 1px solid var(--rule-soft);
}

.trial-at {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: nowrap;
  margin-left: 0.25rem;
}

.trial-more {
  color: var(--ink-soft);
  font-style: italic;
  font-family: var(--sans);
  font-size: 0.82rem;
}

.trial-empty {
  color: var(--ink-soft);
  font-style: italic;
  padding: 2rem;
  text-align: center;
  background: var(--surface);
  border: 1px dashed var(--rule);
  border-radius: 8px;
}

@media (max-width: 700px) {
  .trial-tab-bar { font-size: 0.88rem; }
  .trial-tab-label { padding: 0.6rem 0.85rem; }
  .trial-card { padding: 1.25rem; }
  .trial-card-header { flex-direction: column; align-items: flex-start; }
  .trial-bar-legend { gap: 0.5rem 0.75rem; font-size: 0.75rem; }
}