/* AIlibrary tools — shared design tokens and page scaffolding.
   One file referenced by every tool page so the look matches across tools.
   The spec is in _tools-plan/prompts/NNN-*.md (HOUSE RULES block). */
:root {
  --paper: #f3ede2;
  --paper-2: #ebe3d4;
  --card: #fbf8f2;
  --ink: #1d1a16;
  --ink-2: #5b544a;
  --ink-3: #8c8476;
  --rule: #d9cfbd;
  --accent: #b4381f;
  --accent-ink: #fff7f0;
  --ochre: #b07d1a;
  --ok: #2f6b3a;
  --warn: #8a5a00;
  --bad: #a8301a;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #15130f;
    --paper-2: #1d1a15;
    --card: #211d18;
    --ink: #f3ede2;
    --ink-2: #c9c0b0;
    --ink-3: #8c8476;
    --rule: #342e26;
    --accent: #e2643f;
    --accent-ink: #15130f;
    --ochre: #d6a24a;
    --ok: #6cbf7a;
    --warn: #d6a24a;
    --bad: #ff7a64;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #15130f;
  --paper-2: #1d1a15;
  --card: #211d18;
  --ink: #f3ede2;
  --ink-2: #c9c0b0;
  --ink-3: #8c8476;
  --rule: #342e26;
  --accent: #e2643f;
  --accent-ink: #15130f;
  --ochre: #d6a24a;
  --ok: #6cbf7a;
  --warn: #d6a24a;
  --bad: #ff7a64;
  color-scheme: dark;
}
:root[data-theme="light"] {
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.55 "IBM Plex Sans", system-ui, -apple-system, Segoe UI, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
img, svg, canvas, video { max-width: 100%; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.02em; line-height: 1.2; }
h1 { font-size: clamp(26px, 4.4vw, 36px); }
h2 { font-size: 19px; margin: 28px 0 10px; }
h3 { font-size: 16px; margin: 18px 0 8px; }
p { margin: 0 0 12px; color: var(--ink-2); }
hr { border: 0; border-top: 1px solid var(--rule); margin: 24px 0; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.small { font-size: 13px; }
.xs { font-size: 12px; }
.nowrap { white-space: nowrap; }
.eyebrow { font: 500 11.5px/1 "IBM Plex Mono", ui-monospace, monospace; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); display: inline-block; margin: 0 0 6px; }

/* Page wrap — tool pages are 760px max, the hub is wider */
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.wrap-wide { max-width: 1072px; margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(8px);
}
.site-header .row {
  max-width: 1072px; margin: 0 auto;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px;
}
.brand {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px/1 "IBM Plex Mono", ui-monospace, monospace;
  color: var(--ink); text-decoration: none;
  letter-spacing: .02em;
}
.brand b { font-weight: 600; }
.brand .mark {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 6px;
  background: var(--ink); color: var(--paper);
  font: 600 12px/1 "IBM Plex Mono", monospace;
}
.brand .badge {
  font: 500 9.5px/1 "IBM Plex Mono", monospace;
  text-transform: uppercase; letter-spacing: .08em;
  background: var(--ink); color: var(--paper);
  padding: 3px 5px 2px; border-radius: 4px;
}
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  padding: 6px 10px; border-radius: 7px;
  font-size: 13.5px; color: var(--ink-2);
  text-decoration: none;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--ink); background: var(--paper-2); }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.theme-btn {
  width: 32px; height: 32px; border-radius: 999px;
  border: 1px solid var(--rule); background: var(--card);
  display: inline-grid; place-items: center;
  cursor: pointer; color: var(--ink);
  padding: 0;
}
.theme-btn:hover { background: var(--paper-2); }
.theme-btn .i-sun { display: none; }
:root[data-theme="dark"] .theme-btn .i-sun { display: block; }
:root[data-theme="dark"] .theme-btn .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-btn .i-sun { display: block; }
  :root:not([data-theme="light"]) .theme-btn .i-moon { display: none; }
}

/* Page chrome */
main { min-height: 50vh; padding: 36px 0 80px; }
.page-head { margin-bottom: 18px; }
.page-head h1 { margin-bottom: 8px; }
.page-head .lede { font-size: 15px; max-width: 64ch; margin: 6px 0 0; color: var(--ink-2); }
.crumbs {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  font: 500 11.5px/1 "IBM Plex Mono", monospace;
  text-transform: uppercase; letter-spacing: .04em;
  color: var(--ink-3); margin: 0 0 12px;
}
.crumbs a { color: var(--ink-3); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }
.crumbs i { font-style: normal; color: var(--ink-3); }

/* Cards and surfaces */
.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 18px;
  margin: 14px 0;
}
.card.tight { padding: 14px; }
.card .label { color: var(--ink-3); }

/* Form controls */
input[type=text], input[type=email], input[type=url], input[type=search], input[type=number], input[type=date], input[type=password], input[type=file], select, textarea {
  width: 100%; min-height: 42px; padding: 9px 12px;
  border: 1px solid var(--rule); border-radius: 8px;
  background: var(--card); color: var(--ink);
  font-size: 14px; line-height: 1.5;
}
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
input::placeholder, textarea::placeholder { color: var(--ink-3); }
label.field { display: block; margin: 0 0 14px; }
label.field > span.lbl {
  display: block; font: 500 11.5px "IBM Plex Mono", monospace;
  text-transform: uppercase; letter-spacing: .04em;
  color: var(--ink-3); margin-bottom: 5px;
}
label.field > .hint { display: block; font-size: 12.5px; color: var(--ink-3); margin: 4px 0 0; }
.check { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; color: var(--ink-2); margin: 6px 0; }
.check input { margin-top: 3px; accent-color: var(--accent); width: 16px; height: 16px; flex: none; }
.radio { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; margin-right: 14px; cursor: pointer; }
.radio input { accent-color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  min-height: 40px; padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--rule);
  background: var(--paper-2); color: var(--ink);
  font: 500 13.5px/1 "IBM Plex Sans", sans-serif;
  cursor: pointer; text-decoration: none;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover { background: var(--card); border-color: var(--ink-3); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-accent { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-accent:hover { filter: brightness(1.08); }
.btn-sm { min-height: 32px; padding: 0 10px; font-size: 12.5px; }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--paper-2); }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.btn-row.spread { justify-content: space-between; }

/* Results area */
.result {
  margin: 14px 0; padding: 16px;
  background: var(--card); border: 1px solid var(--rule);
  border-radius: 10px;
}
.result h2 { margin-top: 0; }
.result .stat {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
  margin: 8px 0;
}
.result .stat .cell {
  padding: 10px 12px; background: var(--paper-2);
  border-radius: 8px;
}
.result .stat .cell b {
  display: block;
  font: 500 22px/1.1 "IBM Plex Mono", monospace;
  color: var(--ink);
}
.result .stat .cell span { font-size: 12px; color: var(--ink-3); }
@media (max-width: 540px) {
  .result .stat { grid-template-columns: 1fr; }
}

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font: 500 11.5px "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-3); }
td .mono { font-size: 13px; }
tr:last-child td { border-bottom: 0; }

/* Status pills */
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font: 500 11px/1 "IBM Plex Mono", monospace;
  text-transform: uppercase; letter-spacing: .04em;
  padding: 4px 8px 3px; border-radius: 4px;
  background: var(--paper-2); color: var(--ink-2);
  white-space: nowrap;
}
.pill.ok { background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); }
.pill.warn { background: color-mix(in srgb, var(--warn) 14%, transparent); color: var(--warn); }
.pill.bad { background: color-mix(in srgb, var(--bad) 14%, transparent); color: var(--bad); }
.pill.dot::before { content: ""; width: 6px; height: 6px; border-radius: 99px; background: currentColor; }

/* Inline alert */
.alert {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--paper-2);
  font-size: 13.5px;
  color: var(--ink-2);
  margin: 10px 0;
}
.alert::before { content: ""; width: 7px; height: 7px; border-radius: 99px; background: var(--accent); flex: none; margin-top: 7px; }
.alert.ok::before { background: var(--ok); }
.alert.warn::before { background: var(--warn); }
.alert.bad::before { background: var(--bad); }

/* Footer */
.site-foot {
  border-top: 1px solid var(--rule);
  background: var(--paper);
  padding: 26px 0 40px;
  margin-top: 40px;
  font-size: 12.5px;
  color: var(--ink-3);
}
.site-foot .row { max-width: 1072px; margin: 0 auto; padding: 0 16px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.site-foot a { color: var(--ink-2); text-decoration: none; }
.site-foot a:hover { color: var(--ink); }
.site-foot nav { display: flex; gap: 14px; flex-wrap: wrap; }
.site-foot .privacy { margin-left: auto; max-width: 60ch; line-height: 1.5; }

/* Hub-only */
.hub-hero { padding: 28px 0 18px; }
.hub-hero h1 { max-width: 24ch; }
.hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 14px; margin: 18px 0 8px; }
.hub-cat { margin-top: 28px; }
.hub-cat h2 { font-size: 17px; margin-bottom: 6px; }
.hub-cat .desc { color: var(--ink-2); font-size: 13.5px; margin: 0 0 10px; }
.tool-card {
  display: block; padding: 14px;
  background: var(--card); border: 1px solid var(--rule);
  border-radius: 10px;
  color: var(--ink); text-decoration: none;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.tool-card:hover { border-color: var(--ink-3); transform: translateY(-1px); }
.tool-card b { display: block; font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.tool-card span { font-size: 13px; color: var(--ink-2); line-height: 1.4; }

/* FAQ section */
.faq { margin: 28px 0 12px; }
.faq details { padding: 12px 14px; background: var(--card); border: 1px solid var(--rule); border-radius: 8px; margin: 8px 0; }
.faq summary { cursor: pointer; font-weight: 600; padding: 2px 0; }
.faq summary::marker, .faq summary::-webkit-details-marker { color: var(--ink-3); }
.faq p { margin: 10px 0 0; }

/* Related tools */
.related { margin: 28px 0 0; padding: 18px; background: var(--card); border: 1px solid var(--rule); border-radius: 10px; }
.related h2 { margin-top: 0; }
.related ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.related a { color: var(--ink); text-decoration: none; padding: 4px 0; }
.related a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Empty state */
.empty {
  text-align: center; padding: 28px 16px; color: var(--ink-2);
  background: var(--paper-2); border-radius: 8px; font-size: 14px;
}

/* Progress bar */
.bar { height: 8px; background: var(--paper-2); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); transition: width .2s; }
.bar > i.ok { background: var(--ok); }
.bar > i.warn { background: var(--warn); }
.bar > i.bad { background: var(--bad); }

/* Code/output blocks */
pre.code, textarea.code {
  font: 13px/1.55 "IBM Plex Mono", ui-monospace, monospace;
  background: var(--paper-2); color: var(--ink);
  padding: 12px 14px; border-radius: 8px; border: 1px solid var(--rule);
  white-space: pre-wrap; overflow-wrap: anywhere; margin: 0;
}
pre.code { max-height: 420px; overflow: auto; }

/* Helpers */
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.spread { justify-content: space-between; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
  .hub-grid { grid-template-columns: 1fr; }
  main { padding: 24px 0 60px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* Cookie consent banner (js/consent.js). One line of text, Accept and Decline of equal weight. */
.cc { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 80; max-width: 720px; margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding: 12px 14px; background: var(--cc-bg); color: var(--cc-fg); border: 1px solid var(--cc-line); border-radius: 10px; box-shadow: 0 6px 24px rgba(0, 0, 0, .16); font: 400 13.5px/1.45 var(--cc-font, inherit); }
.cc[hidden] { display: none; }
.cc-text { margin: 0; flex: 1 1 260px; }
.cc-text a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.cc-actions { display: flex; gap: 8px; flex: 0 0 auto; }
.cc-btn { font: inherit; font-weight: 600; min-height: 40px; padding: 8px 18px; border-radius: 8px; border: 1px solid var(--cc-fg); background: transparent; color: var(--cc-fg); cursor: pointer; }
.cc-btn:hover { background: var(--cc-fg); color: var(--cc-bg); }
.cc-btn:focus-visible, .cc-text a:focus-visible { outline: 2px solid var(--cc-accent); outline-offset: 2px; }
@media (max-width: 480px) { .cc { left: 8px; right: 8px; bottom: 8px; } .cc-actions { width: 100%; } .cc-btn { flex: 1; } }
.cc { --cc-bg: var(--card, #fff); --cc-fg: var(--ink, #1d1d1d); --cc-line: var(--rule, #ddd); --cc-accent: var(--accent, #2f6bff); }