/* labs.css — shared styles for labs.nayalle.com.
 * Tokens are sampled from the Figma frames in docs/design (register 02), so every
 * screen shares the Loop page's type and colors. */

:root {
  --bg: #111712;        /* page */
  --panel: #0B100D;     /* sunken panels, inputs */
  --raised: #141B15;    /* side panels, cards */
  --line: #232C24;      /* hairlines */
  --line-strong: #34402F;
  --text: #E9EDE2;
  --muted: #AEB6AC;
  --faint: #6F786E;
  --accent: #C9FF45;    /* lime: active, accepted, open */
  --accent-ink: #0B100D;
  --danger: #FF8A7A;

  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "DM Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --gutter: clamp(16px, 3.3vw, 48px);
  --max: 1440px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; }
.hidden { display: none !important; }

/* Pages that need sign-in stay invisible until labs.js has checked the token. */
body[data-auth="required"]:not(.authed) main { visibility: hidden; }

/* ---- small-caps technical labels -------------------------------------------- */
.mono, .label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.label.lime, .lime { color: var(--accent); }

/* ---- identity bar + nav ------------------------------------------------------- */
.topbar {
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
  padding: 22px var(--gutter) 0;
}
.idrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 17px/1 var(--sans);
  text-decoration: none;
  color: var(--text);
}
.brand::before { content: ""; width: 5px; height: 20px; background: var(--accent); }
.idrow .right { display: flex; align-items: center; gap: 16px; }
.linkbtn {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  color: var(--muted);
}
.linkbtn:hover { color: var(--text); }
.linkbtn.mono { font: 400 11px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.nav a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--text); }
.nav a.on { color: var(--accent); border-bottom-color: var(--accent); }

.subnav { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0 0 28px; }
.subnav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--faint);
}
.subnav a:hover { color: var(--text); }
.subnav a.on { color: var(--text); }

/* ---- page body ---------------------------------------------------------------- */
main {
  flex: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 40px var(--gutter) 64px;
}
.title {
  font: 400 clamp(44px, 7vw, 88px)/0.95 var(--serif);
  letter-spacing: -0.01em;
  margin: 10px 0 12px;
}
.title em { font-style: italic; }
.lede { color: var(--muted); margin: 0 0 32px; max-width: 60ch; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 24px;
}
.todo {
  border: 1px dashed var(--line-strong);
  padding: 22px 24px;
  color: var(--muted);
  max-width: 640px;
}
.todo .label { display: block; margin-bottom: 8px; color: var(--faint); }

/* ---- forms -------------------------------------------------------------------- */
label { display: block; margin: 16px 0 6px; }
input, textarea, select {
  width: 100%;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 11px 12px;
  font: 400 15px/1.4 var(--sans);
}
input:focus, textarea:focus, select:focus { outline: 1px solid var(--accent); outline-offset: -1px; }
.btn {
  display: inline-block;
  margin-top: 18px;
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  padding: 11px 18px;
  font: 600 14px/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
}
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: none; color: var(--muted); border-color: var(--line-strong); margin-left: 8px; }
.btn.ghost:hover { color: var(--text); }
.btn[aria-disabled="true"] { opacity: .35; cursor: not-allowed; }
.msg { min-height: 1.5em; margin: 16px 0 0; color: var(--muted); }
.msg.err { color: var(--danger); }
.msg.info { color: var(--accent); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.code-input { font: 400 26px/1 var(--mono); letter-spacing: .4em; text-align: center; }

/* ---- page head, filters, lists ------------------------------------------------- */
.muted { color: var(--muted); }
.faint { color: var(--faint); }
.crumbs { margin: 0 0 12px; font-size: 12px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.page-head .lede { margin-bottom: 0; }
.page-head .btn { margin-top: 0; }
.page-head .actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.page-head .actions .btn.ghost { margin-left: 0; }
.record-title { font-size: clamp(36px, 5vw, 64px); max-width: 22ch; overflow-wrap: anywhere; }
.save-state { color: var(--faint); font-size: 11px; }

.filters { display: flex; flex-wrap: wrap; gap: 0 14px; margin: 0 0 20px; align-items: flex-end; }
.filters > div { min-width: 160px; }
.filters .grow { flex: 1; min-width: 200px; }
.filters label { margin-top: 0; }

.tbl { width: 100%; border-collapse: collapse; }
.tbl th {
  text-align: left;
  font: 400 11px/1.2 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.tbl td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl td.mono { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.tbl tbody tr:hover { background: var(--raised); }
.rowlink { text-decoration: none; font-weight: 500; }
.rowlink:hover { color: var(--accent); }
.count { margin-top: 12px; font-size: 11px; }
.pill {
  display: inline-block;
  font: 400 11px/1 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 5px 7px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
}
.pill.new { color: var(--accent); border-color: var(--accent); }
.pill.archived { color: var(--faint); border-style: dashed; }
.empty-state { border: 1px dashed var(--line-strong); padding: 32px 24px; color: var(--muted); }
.empty-state .btn { margin-top: 8px; }
.empty { color: var(--faint); margin: 0; }

/* ---- record pages ---------------------------------------------------------------- */
.record .block { border-top: 1px solid var(--line); padding: 26px 0 30px; }
.block-title { font: 400 30px/1.1 var(--serif); margin: 0 0 6px; display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.block-title + .panel { margin-top: 12px; margin-bottom: 26px; }
.rule { color: var(--muted); border-left: 2px solid var(--accent); padding-left: 10px; margin: 6px 0 4px; font-size: 14px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.grid .span2 { grid-column: span 2; }
.grid label .faint { text-transform: none; letter-spacing: 0; font-family: var(--sans); }
.deferred { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.deferred .btn.ghost { margin-left: 0; }
.savebar { display: flex; justify-content: flex-end; align-items: center; gap: 12px; border-top: 1px solid var(--line); }
.savebar .btn { margin-top: 18px; }
.savebar .save-state { margin-top: 18px; }

/* ---- buttons, small ------------------------------------------------------------- */
.btn.small { margin-top: 0; padding: 7px 11px; font-size: 13px; }
.btn.small.ghost { margin-left: 0; }
.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); color: var(--danger); }

/* ---- tag chips -------------------------------------------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  font: 400 12px/1 var(--mono);
  color: var(--text);
  background: var(--raised);
  border: 1px solid var(--line-strong);
  padding: 4px 7px;
  white-space: nowrap;
}
.chip button { background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0 0 0 2px; font: inherit; line-height: 1; }
.chip button:hover { color: var(--danger); }
.chiprow { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.chips { position: relative; }
.chips-box {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  background: var(--panel); border: 1px solid var(--line-strong); padding: 6px 8px; cursor: text;
}
.chips-box:focus-within { outline: 1px solid var(--accent); outline-offset: -1px; }
.chips-list { display: contents; }
.chips-box input { flex: 1; min-width: 120px; border: 0; background: none; padding: 5px 2px; outline: none; }
.chips-menu {
  position: absolute; z-index: 20; left: 0; right: 0; top: 100%;
  list-style: none; margin: 2px 0 0; padding: 4px 0;
  background: var(--raised); border: 1px solid var(--line-strong); max-height: 260px; overflow: auto;
}
.chips-menu li { padding: 8px 12px; cursor: pointer; display: flex; justify-content: space-between; gap: 12px; font: 400 13px/1.3 var(--mono); }
.chips-menu li.on { background: var(--panel); color: var(--accent); }
.chips-menu li.create { color: var(--muted); font-family: var(--sans); }
.chips-menu li.create b { color: var(--accent); font-family: var(--mono); font-weight: 400; }
.chips-menu .uses { color: var(--faint); }

/* ---- takeaways -------------------------------------------------------------------- */
.tk-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin: 14px 0 4px; }
.tk-head p { margin: 0; font-size: 12px; }
.tk-group { margin-top: 18px; }
.tk-group > h3, .tk-group > summary { margin: 0 0 8px; }
.tk-group > summary { cursor: pointer; padding: 6px 0; }
.tk {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  background: var(--panel);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.tk.draft { border-left-color: var(--muted); }
.tk.accepted { border-left-color: var(--accent); }
.tk.rejected { opacity: .65; }
.tk.editing { border-left-color: var(--accent); background: var(--raised); }
.tk-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; font-size: 11px; }
.pill.cat { color: var(--text); }
.tk-text { font-size: 15px; }
.tk-quote { margin: 10px 0 0; padding-left: 12px; border-left: 2px solid var(--line-strong); color: var(--muted); font-size: 14px; }
.tk-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px; }
.tk-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.tk-form .grid label, .tk-form .md-head label, .tk-form .chips label { margin-top: 10px; }

/* ---- markdown editor ------------------------------------------------------------- */
.md { margin-top: 16px; }
.md-head { display: flex; align-items: baseline; gap: 12px; }
.md-head label { margin: 0 0 6px; }
.md-size { margin-left: auto; font-size: 11px; color: var(--faint); }
.md-size.over { color: var(--danger); }
.md-tabs { display: none; gap: 2px; }
.md-tabs button {
  background: none; border: 1px solid var(--line-strong); color: var(--muted);
  font: 400 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 6px 8px; cursor: pointer;
}
.md-tabs button.on { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.md-hint { margin: 0 0 6px; color: var(--faint); font-size: 13px; }
.md-panes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.md-panes textarea {
  font: 400 14px/1.6 var(--mono);
  resize: vertical;
  min-height: 220px;
}
.md-preview {
  background: var(--raised);
  border: 1px solid var(--line);
  padding: 12px 16px;
  overflow: auto;
  max-height: 70vh;
  min-height: 220px;
}

/* Rendered markdown */
.prose { overflow-wrap: anywhere; }
.prose > :first-child { margin-top: 0; }
.prose > :last-child { margin-bottom: 0; }
.prose h1, .prose h2, .prose h3 { font-family: var(--serif); font-weight: 400; line-height: 1.15; margin: 1.1em 0 .4em; }
.prose h1 { font-size: 30px; } .prose h2 { font-size: 25px; } .prose h3 { font-size: 20px; }
.prose a { color: var(--accent); }
.prose code { font: 13px var(--mono); background: var(--panel); padding: 1px 4px; }
.prose pre { background: var(--panel); border: 1px solid var(--line); padding: 12px; overflow: auto; }
.prose pre code { background: none; padding: 0; }
.prose blockquote { margin: 1em 0; padding-left: 14px; border-left: 2px solid var(--line-strong); color: var(--muted); }
.prose table { border-collapse: collapse; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 8px; }
.prose hr { border: 0; border-top: 1px solid var(--line); }

/* ---- history drawer -------------------------------------------------------------- */
.shade { position: fixed; inset: 0; background: rgba(0, 0, 0, .55); z-index: 40; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 41;
  width: min(1100px, 92vw);
  background: var(--raised);
  border-left: 1px solid var(--line-strong);
  display: flex; flex-direction: column;
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; border-bottom: 1px solid var(--line); }
.drawer-body { overflow: auto; padding: 18px 24px 40px; }
.drawer-title { font: 400 30px/1.1 var(--serif); margin: 6px 0; }
.drawer-actions .btn { margin: 4px 0 18px; }
.versions { list-style: none; margin: 0; padding: 0; }
.versions button {
  width: 100%; text-align: left; background: none; color: var(--text); cursor: pointer;
  border: 0; border-bottom: 1px solid var(--line); padding: 12px 0; display: flex; flex-direction: column; gap: 4px; font: inherit;
}
.versions button:hover .v-when { color: var(--accent); }
.v-what { font-size: 11px; color: var(--faint); }
.diff-field { margin: 18px 0; }
.diff-field h4 { margin: 0 0 8px; }
.diff-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.diff-cols p { margin: 4px 0 0; padding: 8px 10px; overflow-wrap: anywhere; }
.diff-scroll { overflow: auto; border: 1px solid var(--line); max-height: 60vh; }
.diff { width: 100%; border-collapse: collapse; table-layout: fixed; font: 12.5px/1.5 var(--mono); }
.diff th { text-align: left; font-weight: 400; color: var(--faint); padding: 6px 8px; border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; }
.diff td { padding: 1px 8px; vertical-align: top; white-space: pre-wrap; overflow-wrap: anywhere; }
.diff col.n { width: 44px; }
.diff td.n { color: var(--faint); text-align: right; user-select: none; }
.diff td.blank { background: var(--panel); }
.diff tr.gap td { color: var(--faint); text-align: center; background: var(--panel); padding: 4px; }
.del, .diff td.del { background: rgba(255, 138, 122, .12); color: #FFC7BE; }
.ins, .diff td.ins { background: rgba(201, 255, 69, .10); color: #E4FFA8; }

/* ---- footer ------------------------------------------------------------------- */
.footer {
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter) 28px;
}
.footer div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

@media (max-width: 760px) {
  /* Lists collapse to cards (SPEC §7). */
  .tbl thead { display: none; }
  .tbl, .tbl tbody, .tbl tr, .tbl td { display: block; width: 100%; }
  .tbl tr { border: 1px solid var(--line); background: var(--raised); padding: 6px 0; margin-bottom: 10px; }
  .tbl td { border: 0; padding: 4px 14px; display: flex; gap: 12px; }
  .tbl td::before { content: attr(data-l); flex: 0 0 104px; font: 400 10px/1.9 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
  .md-tabs { display: inline-flex; }
  .md-panes { grid-template-columns: 1fr; }
  .md-panes[data-show="write"] .md-preview, .md-panes[data-show="preview"] textarea { display: none; }
  .grid { grid-template-columns: 1fr; }
  .grid .span2 { grid-column: auto; }
  .drawer { top: auto; width: 100%; height: 88vh; border-left: 0; border-top: 1px solid var(--line-strong); }
  .diff-cols { grid-template-columns: 1fr; }
  .diff { font-size: 11.5px; }
  .diff col.n { width: 30px; }
  .diff td.n { padding: 1px 4px; }
}

@media (max-width: 560px) {
  .idrow .tag { display: none; }
  .row2 { grid-template-columns: 1fr; }
  .nav { gap: 2px 16px; }
}