/* Checksum
 *
 * Palette: paper and ink, with one cold blue for the verified side and one rust for
 * disagreement. Nothing trendy -- a tool that audits numbers should not look like it
 * is selling something. No purple gradient, no glass, no Tailwind defaults.
 *
 * Type: Instrument Serif for display, IBM Plex Sans for prose, IBM Plex Mono for
 * anything that came out of the warehouse. SQL is the product here, so mono is a
 * first-class voice rather than a code-block afterthought.
 */

:root {
  --paper:      #F4F2ED;
  --paper-deep: #EAE6DE;
  --ink:        #16181C;
  --ink-soft:   #4A4E57;
  --ink-faint:  #8C8F97;
  --rule:       #D9D4C9;

  --deep:       #1E3A5F;   /* the verified side */
  --deep-wash:  #E7ECF3;
  --rust:       #A8442A;   /* disagreement */
  --rust-wash:  #F6E9E4;
  --olive:      #5A6141;   /* guards, quiet confirmations */

  --serif: "Instrument Serif", Georgia, serif;
  --sans:  "IBM Plex Sans", system-ui, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, Menlo, monospace;

  --gutter: clamp(1.25rem, 4vw, 4.5rem);
}

* { box-sizing: border-box; }

/* Every display rule below would otherwise beat the hidden attribute. */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  /* Faint paper grain. Flat off-white reads as "unstyled"; this reads as chosen. */
  background-image: radial-gradient(rgba(22,24,28,.022) 1px, transparent 1px);
  background-size: 3px 3px;
}

em { font-style: italic; }

/* ---------------------------------------------------------------- masthead */

.masthead {
  padding: clamp(2.5rem, 7vw, 5.5rem) var(--gutter) 0;
  max-width: 74rem;
}

.mark {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.mark-glyph {
  display: inline-grid;
  place-items: center;
  width: 1.35rem; height: 1.35rem;
  border: 1.5px solid var(--deep);
  color: var(--deep);
  font-size: .7rem;
  transform: translateY(.15rem);
}

.standfirst {
  font-family: var(--serif);
  /* Tight and large: display type earns its space by being unmistakably display type. */
  font-size: clamp(2.6rem, 7.5vw, 5.25rem);
  line-height: .96;
  letter-spacing: -0.022em;
  margin: 1.5rem 0 0;
  max-width: 18ch;
}

.standfirst em { color: var(--rust); }

.subhead {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 1.25rem 0 0;
}

.subhead span { font-family: var(--mono); color: var(--ink); }

/* --------------------------------------------------------------------- ask */

.ask {
  padding: clamp(2rem, 5vw, 3.5rem) var(--gutter) 0;
  max-width: 74rem;
}

.ask-label {
  display: block;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: .65rem;
}

.ask-row { display: flex; gap: .75rem; flex-wrap: wrap; }

#question {
  flex: 1 1 24rem;
  font-family: var(--mono);
  font-size: 1rem;
  padding: .95rem 1.05rem;
  color: var(--ink);
  background: #FBFAF7;
  border: 1.5px solid var(--ink);
  border-radius: 0;              /* sharp corners; rounded-2xl everywhere is the tell */
  outline: none;
  transition: box-shadow .16s ease;
}

#question:focus { box-shadow: 4px 4px 0 var(--deep); }

#run {
  font-family: var(--mono);
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .95rem 1.9rem;
  color: var(--paper);
  background: var(--ink);
  border: 1.5px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  transition: transform .12s ease, background .16s ease;
}

#run:hover:not(:disabled) { background: var(--deep); border-color: var(--deep); transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--ink); }
#run:disabled { background: var(--ink-faint); border-color: var(--ink-faint); cursor: progress; }
.run-count { font-variant-numeric: tabular-nums; opacity: .85; }

.presets { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .85rem; }

.preset {
  font-family: var(--mono);
  font-size: .76rem;
  padding: .38rem .7rem;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  cursor: pointer;
  transition: color .14s ease, border-color .14s ease;
}
.preset:hover { color: var(--deep); border-color: var(--deep); }
.preset[data-cached]::after { content: " ·  cached"; color: var(--olive); }

/* ------------------------------------------------------------------- stage */

.stage {
  display: grid;
  /* Deliberately unequal. The standard agent does less, so it gets less room --
     the asymmetry is the argument, not decoration. */
  grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
  gap: 1px;
  background: var(--rule);
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  margin: clamp(2rem, 5vw, 3.5rem) 0 0;
}

@media (max-width: 60rem) {
  .stage { grid-template-columns: 1fr; }
}

.panel {
  background: var(--paper);
  padding: clamp(1.5rem, 3vw, 2.5rem) var(--gutter);
  min-height: 22rem;
  display: flex;
  flex-direction: column;
}

.panel-checksum { background: #FBFAF8; }

.panel h2 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
}

.panel-standard h2 { color: var(--ink-soft); }
.panel-checksum h2 { color: var(--deep); }

.panel-note {
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--ink-faint);
  margin: .4rem 0 1.5rem;
  max-width: 44ch;
}

.panel-body { flex: 1; }
.idle { color: var(--ink-faint); font-family: var(--mono); font-size: .85rem; }

.answer { white-space: pre-wrap; margin: 0; font-size: .96rem; }
.answer strong { font-weight: 600; }

.audit {
  margin-top: 1.4rem;
  border-left: 3px solid var(--rust);
  background: var(--rust-wash);
  padding: .85rem 1rem;
  font-size: .88rem;
}
.audit b {
  display: block;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: .3rem;
}

.panel-foot {
  display: flex;
  gap: 1.75rem;
  margin-top: 1.75rem;
  padding-top: .9rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: .76rem;
  color: var(--ink-faint);
}
.panel-foot b { color: var(--ink); font-size: .95rem; font-variant-numeric: tabular-nums; }

/* ---------------------------------------------------------------- readings */

.readings { list-style: none; margin: 0; padding: 0; }

.reading {
  display: grid;
  grid-template-columns: 1.5rem 1fr auto;
  align-items: baseline;
  gap: .75rem;
  padding: .5rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: .9rem;
  /* Each reading lands when its query returns, so the stagger is real timing,
     not a canned animation delay. */
  animation: land .34s cubic-bezier(.2,.7,.3,1) both;
}

@keyframes land {
  from { opacity: 0; transform: translateY(.55rem); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reading { animation: none; }
}

.reading-index {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.reading-name { cursor: pointer; }
.reading-name:hover { color: var(--deep); }
.reading-cat {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-left: .5rem;
}

.reading-leader {
  font-family: var(--mono);
  font-size: .82rem;
  text-align: right;
  color: var(--ink-soft);
}
.reading.is-policy { background: var(--deep-wash); margin-inline: -.6rem; padding-inline: .6rem; }
.reading.is-policy .reading-leader { color: var(--deep); font-weight: 600; }
.reading.is-guard .reading-leader { color: var(--olive); }
.reading.is-error .reading-leader { color: var(--rust); }

/* ----------------------------------------------------------------- verdict */

.verdict {
  margin-top: 1.75rem;
  padding: 1.1rem 1.25rem;
  border: 1.5px solid var(--rust);
  background: var(--rust-wash);
}
.verdict.is-stable { border-color: var(--olive); background: #EDF0E6; }
.verdict.is-refused { border-color: var(--ink); background: var(--paper-deep); }

.verdict-head {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
}
.verdict-detail { font-size: .9rem; color: var(--ink-soft); margin: .55rem 0 0; }

.explanation {
  margin-top: 1.25rem;
  font-size: .96rem;
  white-space: pre-wrap;
}
.explanation strong { color: var(--deep); }

/* ---------------------------------------------------------------- movement */

.movement { padding: clamp(2.5rem, 6vw, 4rem) var(--gutter); max-width: 74rem; }

.movement h3, .receipts-head h3 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
}

.movement-note { color: var(--ink-soft); max-width: 54ch; margin: .6rem 0 2rem; }

.slope { display: grid; gap: .3rem; }

.slope-row {
  display: grid;
  grid-template-columns: minmax(0, 13rem) minmax(0, 1fr) 3.5rem;
  align-items: center;
  gap: 1rem;
  font-family: var(--mono);
  font-size: .78rem;
}

@media (max-width: 40rem) {
  .slope-row { grid-template-columns: minmax(0, 8rem) minmax(0, 1fr) 2.5rem; gap: .5rem; font-size: .68rem; }
}
.slope-label { color: var(--ink-soft); text-align: right; }
.slope-track { position: relative; height: 1.5rem; border-bottom: 1px dotted var(--rule); }
.slope-dot {
  position: absolute; top: 50%;
  width: .6rem; height: .6rem;
  margin: -.3rem 0 0 -.3rem;
  background: var(--deep);
  border-radius: 50%;
  transition: left .5s cubic-bezier(.2,.7,.3,1);
}
.slope-row.is-mover .slope-dot { background: var(--rust); width: .8rem; height: .8rem; margin: -.4rem 0 0 -.4rem; }
.slope-rank { font-variant-numeric: tabular-nums; color: var(--ink); }
.slope-row.is-mover .slope-rank { color: var(--rust); font-weight: 600; }

/* ---------------------------------------------------------------- receipts */

.receipts {
  border-top: 1.5px solid var(--ink);
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
}
.receipts-head { max-width: 74rem; }
.receipts-head p { color: var(--ink-soft); max-width: 56ch; margin: .6rem 0 2.25rem; }

.receipt-list { display: grid; gap: 1px; background: var(--rule); max-width: 74rem; }

/* min-width:0 or the wide SQL below stretches this grid item instead of scrolling
   inside it, and the whole page gains a horizontal scrollbar on a phone. */
.receipt { background: var(--paper); padding: 1.15rem 1.35rem; min-width: 0; }
.receipt.is-target { background: var(--deep-wash); }

.receipt-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .6rem 1rem;
  margin-bottom: .5rem;
}
.receipt-name { font-weight: 600; font-size: .96rem; }
.receipt-cat {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.receipt-rows { margin-left: auto; font-family: var(--mono); font-size: .74rem; color: var(--ink-faint); }
.receipt-why { font-size: .86rem; color: var(--ink-soft); margin: 0 0 .75rem; max-width: 62ch; }
.receipt-source {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--deep);
  margin: 0 0 .75rem;
}
.receipt-caveat {
  font-size: .8rem;
  color: var(--ink-soft);
  border-left: 2px solid var(--rule);
  padding-left: .7rem;
  margin: 0 0 .75rem;
  max-width: 62ch;
}

.sql {
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.5;
  background: #FBFAF7;
  border: 1px solid var(--rule);
  padding: .8rem .9rem;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
  cursor: copy;
  position: relative;
}
.sql:hover { border-color: var(--deep); }
.sql[data-copied]::after {
  content: "copied";
  position: absolute; top: .5rem; right: .6rem;
  font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--olive);
}

.receipt-top-rows {
  font-family: var(--mono);
  font-size: .76rem;
  margin-top: .7rem;
  color: var(--ink-soft);
  display: grid;
  gap: .1rem;
}
.receipt-top-rows span b { color: var(--ink); font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------- colophon */

.colophon {
  border-top: 1px solid var(--rule);
  padding: 2.5rem var(--gutter) 4rem;
  max-width: 74rem;
  color: var(--ink-soft);
  font-size: .86rem;
}
.colophon strong { color: var(--ink); }
.colophon-meta { font-family: var(--mono); font-size: .74rem; color: var(--ink-faint); margin-top: .8rem; }
.colophon code { font-family: var(--mono); color: var(--ink-soft); }

.preset-group { display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem; margin-bottom: .5rem; }
.preset-group-name {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  min-width: 9rem;
}

.scope-banner {
  margin: 1.1rem 0 0;
  padding-left: .8rem;
  border-left: 2px solid var(--deep);
  font-size: .86rem;
  color: var(--ink-soft);
  max-width: 68ch;
}
.scope-banner b { color: var(--deep); font-weight: 600; }
.scope-banner i { color: var(--rust); font-style: normal; }