/* CodeKhoj: paper, ink and teal. System fonts only. Mobile first. */
:root {
  --ink: #16233b;
  --paper: #f6f3ec;
  --card: #ffffff;
  --line: #ddd6c8;
  --muted: #5b6372;
  --teal: #0b6b66;
  --teal-soft: #e7f1ef;
  --rust: #a84a17;
  --amber: #f2c46d;
  --amber-soft: #fff3dc;
  --amber-ink: #7a4500;
  --ok-ink: #1d5c38;
  --ok-soft: #e8f4ec;
  --bad-ink: #8a1f1f;
  --bad-soft: #fbeaea;
  --radius: 14px;
  --mono: ui-monospace, "Cascadia Mono", "Segoe UI Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
img, svg { max-width: 100%; }
a { color: var(--teal); text-underline-offset: 0.18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--rust); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--card); padding: 0.75rem 1rem; z-index: 10; }
.skip:focus { left: 1rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 0.6rem; }
h1 { font-size: clamp(1.45rem, 5vw, 2.5rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.3rem, 3.8vw, 1.7rem); margin-top: 2rem; }
h3 { font-size: 1.15rem; margin-top: 1.4rem; }
p { margin: 0 0 1rem; }
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 1rem; }
.narrow { max-width: 760px; }

/* Header */
.site-header { border-top: 5px solid var(--teal); background: var(--paper); border-bottom: 1px solid var(--line); }
.header-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0 1rem; padding-top: 0.35rem; padding-bottom: 0.35rem; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.2rem; min-height: 44px; }
.brand svg { width: 32px; height: 32px; flex: none; }
.brand .khoj { color: var(--teal); }
.site-nav ul { list-style: none; margin: 0 -0.5rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.1rem; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.55rem; border-radius: 999px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
@media (min-width: 720px) { .site-nav ul { margin: 0; gap: 0.25rem; } .site-nav a { padding: 0 0.75rem; } }
.site-nav a:hover { background: var(--teal-soft); }
.site-nav a[aria-current="page"] { background: var(--ink); color: #fff; }

main { padding-bottom: 3rem; }
.hero { padding: 1rem 0 0; }
.hero .lead { font-size: 1rem; margin-bottom: 0.6rem; }
@media (min-width: 720px) { .hero { padding-top: 1.8rem; } .hero .lead { font-size: 1.12rem; } }
.hero + .notice { margin-top: 0.4rem; padding: 0.6rem 0.85rem; font-size: 0.95rem; }
.eyebrow { font-family: var(--mono); font-size: 0.85rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--rust); margin-bottom: 0.5rem; }
.lead { font-size: 1.12rem; color: #2a3650; max-width: 62ch; }

/* Notices */
.notice { border-radius: var(--radius); padding: 0.9rem 1rem; margin: 1rem 0; border: 1px solid var(--line); background: var(--card); }
.notice p:last-child { margin-bottom: 0; }
.notice-warn { background: var(--amber-soft); border-color: #ecd3a2; color: var(--amber-ink); }
.notice-warn strong, .notice-warn a { color: var(--amber-ink); }
.notice-ok { background: var(--ok-soft); border-color: #bcdcc7; color: var(--ok-ink); }
.notice-bad { background: var(--bad-soft); border-color: #eec4c4; color: var(--bad-ink); }
.limits { font-size: 0.97rem; border-left: 5px solid var(--rust); background: var(--card); padding: 0.9rem 1rem; border-radius: 0 var(--radius) var(--radius) 0; margin: 1.5rem 0; }

/* Search card */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 0.95rem; box-shadow: 0 1px 0 rgba(22, 35, 59, 0.04), 0 8px 24px -18px rgba(22, 35, 59, 0.35); margin: 1rem 0; }
.card > h2:first-child { margin-top: 0; }
.modes { border: 0; padding: 0; margin: 0 0 0.8rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.45rem; }
.modes legend { font-weight: 700; font-size: 1.1rem; margin-bottom: 0.45rem; padding: 0; }
.mode { position: relative; }
.mode input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.mode span { display: flex; align-items: center; justify-content: center; text-align: center; min-height: 48px; padding: 0.4rem 0.6rem; border: 2px solid var(--line); border-radius: 12px; font-weight: 650; cursor: pointer; background: var(--paper); line-height: 1.25; }
.mode input:checked + span { border-color: var(--teal); background: var(--teal-soft); color: var(--ink); box-shadow: inset 0 0 0 1px var(--teal); }
.mode input:focus-visible + span { outline: 3px solid var(--rust); outline-offset: 2px; }
@media (min-width: 720px) { .modes { grid-template-columns: repeat(4, 1fr); } }

.field { display: grid; gap: 0.35rem; margin-bottom: 0.8rem; }
.field label { font-weight: 650; }
.hint { color: var(--muted); font-size: 0.93rem; margin: 0; }
.row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: stretch; }
.row input { flex: 1 1 8rem; min-width: 0; }
input[type="text"], input[type="search"], select {
  font: inherit; color: var(--ink); background: #fff;
  min-height: 48px; padding: 0.5rem 0.75rem; border: 2px solid #7d8696; border-radius: 10px; width: 100%;
}
/* Wraps each form's controls; ships disabled and is enabled by app.mjs, so nothing submits without JavaScript. */
fieldset.js-only { border: 0; margin: 0; padding: 0; min-width: 0; }
fieldset.js-only[disabled] input, fieldset.js-only[disabled] button { opacity: 0.6; cursor: not-allowed; }
input.code { font-family: var(--mono); letter-spacing: 0.08em; font-size: 1.15rem; }
input:focus-visible, select:focus-visible { border-color: var(--teal); }
button, .button {
  font: inherit; font-weight: 700; min-height: 48px; padding: 0.5rem 1.15rem; border-radius: 10px; cursor: pointer;
  border: 2px solid var(--ink); background: var(--ink); color: #fff; display: inline-flex; align-items: center; justify-content: center; text-decoration: none;
}
button:hover, .button:hover { background: #24375a; color: #fff; }
button.secondary { background: #fff; color: var(--ink); }
button.secondary:hover { background: var(--teal-soft); color: var(--ink); }
button.small { min-height: 44px; padding: 0.3rem 0.8rem; font-size: 0.93rem; }
button[disabled], select[disabled] { opacity: 0.6; cursor: not-allowed; }

/* Results */
.results:empty { display: none; }
.results { margin-top: 1rem; }
.result-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; align-items: baseline; }
.result-list { list-style: none; padding: 0; margin: 0.5rem 0 0; display: grid; gap: 0.7rem; }
.result { border: 1px solid var(--line); border-radius: 12px; padding: 0.85rem 0.95rem; background: #fff; }
.result h3 { margin: 0 0 0.4rem; font-size: 1.08rem; }
.result dl { display: grid; grid-template-columns: minmax(7.5rem, max-content) 1fr; gap: 0.15rem 0.9rem; margin: 0; }
.result dt { color: var(--muted); font-size: 0.93rem; }
.result dd { margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.7rem; }
.code-text { font-family: var(--mono); letter-spacing: 0.06em; font-weight: 700; }
.provenance { font-size: 0.9rem; color: var(--muted); margin-top: 0.8rem; }
/* Standalone links in results meet the 44px tap-target minimum. */
.result a.code-text, .saved-list a, .provenance a, #check-result p > a { display: inline-flex; align-items: center; min-height: 44px; }
.pin-links { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; padding: 0; margin: 0.6rem 0 0; }
.pin-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.7rem; border: 1px solid var(--line); border-radius: 8px; font-family: var(--mono); text-decoration: none; background: var(--paper); }
details { border: 1px solid var(--line); border-radius: 12px; padding: 0.2rem 0.9rem; background: #fff; }
details + details { margin-top: 0.5rem; }
summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 650; }

/* Code tiles */
.tiles { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.8rem 0; }
.seg { display: grid; justify-items: center; gap: 0.3rem; }
.chars { display: flex; gap: 3px; }
.ch { display: inline-grid; place-items: center; width: 2.1rem; height: 2.6rem; border-radius: 8px; font-family: var(--mono); font-weight: 800; font-size: 1.25rem; background: var(--ink); color: #fff; }
.seg:nth-child(2) .ch { background: var(--teal); }
.seg:nth-child(3) .ch { background: var(--amber); color: var(--ink); }
.seg:nth-child(4) .ch { background: #c9d6e3; color: var(--ink); }
.seg-label { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); text-align: center; max-width: 6.5rem; line-height: 1.25; }
.seg-notes { margin: 0.4rem 0 0; padding-left: 1.2rem; }
@media (max-width: 400px) { .ch { width: 1.75rem; height: 2.3rem; font-size: 1.05rem; } .tiles { gap: 0.4rem; } }

/* Saved */
.saved-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.saved-list li { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem; border: 1px solid var(--line); border-radius: 12px; padding: 0.5rem 0.8rem; background: #fff; }

/* Cards grid */
.grid { display: grid; gap: 0.9rem; grid-template-columns: 1fr; margin: 1rem 0; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(3, 1fr); } .grid.two { grid-template-columns: repeat(2, 1fr); } }
.tile-card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; text-decoration: none; color: var(--ink); }
.tile-card:hover { border-color: var(--teal); color: var(--ink); }
.tile-card h3 { margin-top: 0; color: var(--teal); }
.tile-card p { margin: 0; color: #2a3650; }

/* Prose */
.prose { max-width: 72ch; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: 0.4rem; }
.breadcrumbs { font-size: 0.93rem; margin: 1rem 0 0; color: var(--muted); }
.breadcrumbs a { display: inline-flex; align-items: center; min-height: 44px; }
.table-wrap { overflow-x: auto; margin: 1rem 0; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--teal-soft); }
tr:last-child td { border-bottom: 0; }
tr:last-child th { border-bottom: 0; }
caption { caption-side: top; text-align: left; padding: 0.6rem 0.75rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.attribution { font-family: var(--mono); font-size: 0.9rem; background: #fff; border: 1px dashed var(--teal); border-radius: 10px; padding: 0.8rem; }
.cite { font-size: 0.85em; white-space: nowrap; }
.sources { margin-top: 2.2rem; border-top: 1px solid var(--line); padding-top: 0.6rem; font-size: 0.95rem; }
.sources ul { padding-left: 1.2rem; }

/* Footer */
.site-footer { background: var(--ink); color: #e9edf3; padding: 1.6rem 0 2rem; font-size: 0.95rem; }
.site-footer a { color: #fff; }
.site-footer a:focus-visible { outline-color: var(--amber); }
.footer-links { list-style: none; padding: 0; margin: 0 0 0.8rem; display: flex; flex-wrap: wrap; gap: 0.2rem 0.4rem; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.5rem; }
.site-footer p { margin: 0 0 0.4rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media print { .site-nav, .site-footer .footer-links, .actions, form { display: none; } }
.tiles + .hint { margin-bottom: 1rem; }