/* Rubriq — forensic lab bench: verdicts in green ink on white paper.
   Register: product. Strategy: restrained. See DESIGN.md. */

/* ---------- fonts (self-hosted, latin subsets) ---------- */
@font-face {
  font-family: "IBM Plex Sans";
  src: url("fonts/plexsans-var-latin.woff2") format("woff2");
  font-weight: 100 700;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jbmono-var-latin.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

/* ---------- tokens ---------- */
:root {
  --bg:          oklch(1.000 0.000 0);
  --surface:     oklch(0.972 0.004 140);
  --surface-2:   oklch(0.945 0.006 140);
  --ink:         oklch(0.230 0.015 140);
  --muted:       oklch(0.470 0.018 140);
  --line:        oklch(0.885 0.008 140);
  --primary:     oklch(0.480 0.100 140);
  --primary-deep:oklch(0.400 0.095 140);
  --primary-ink: oklch(0.980 0.005 140);
  --primary-tint:oklch(0.950 0.020 140);
  --accent:      oklch(0.400 0.075 255);
  --accent-tint: oklch(0.945 0.015 255);
  --good:        oklch(0.480 0.100 140);
  --warn:        oklch(0.560 0.120 75);
  --warn-deep:   oklch(0.450 0.100 75);
  --warn-tint:   oklch(0.955 0.025 85);
  --bad:         oklch(0.505 0.160 25);
  --bad-tint:    oklch(0.955 0.020 25);
  --judge:       oklch(0.400 0.075 255);

  /* instrument console (input pane) — deep green-tinted near-black */
  --console:      oklch(0.180 0.020 150);
  --console-2:    oklch(0.225 0.022 150);   /* input wells */
  --console-line: oklch(0.330 0.022 150);
  --console-ink:  oklch(0.935 0.008 140);
  --console-mut:  oklch(0.720 0.020 145);
  --led:          oklch(0.760 0.150 148);   /* phosphor green: LED, focus, fills */
  --led-dim:      oklch(0.320 0.060 148);   /* selected-state well */

  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;

  --r-ctl: 6px;
  --r-panel: 10px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --z-dropdown: 10;
  --z-sticky: 20;
  --z-toast: 40;
}

/* ---------- reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font: 400 15px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { text-wrap: balance; margin: 0; }
p { margin: 0; }
a { color: var(--primary); }
button { font: inherit; }
::selection { background: var(--primary-tint); }

:is(button, a, input, textarea, summary):focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--r-ctl);
}

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  height: 56px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}
.brand { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
.wordmark {
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--primary-deep);
}
.brand-note {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-right { display: flex; align-items: center; gap: 16px; }
.top-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}
.top-link:hover { border-bottom-color: var(--ink); }

.engine-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 11px 4px 9px;
  background: var(--surface);
}
.engine-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--muted);
  transition: background 200ms var(--ease);
}
.engine-pill[data-state="ready"] .engine-dot { background: var(--good); }
.engine-pill[data-state="ready"] { color: var(--ink); }
.engine-pill[data-state="waking"] .engine-dot {
  background: var(--warn);
  animation: pulse 1.4s ease-in-out infinite;
}
.engine-pill[data-state="down"] .engine-dot { background: var(--bad); }
@keyframes pulse { 50% { opacity: 0.35; } }

/* ---------- layout ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(370px, 440px) 1fr;
  min-height: calc(100vh - 57px);
}
.pane-input {
  background: var(--console);
  color: var(--console-ink);
  padding: 28px 24px 32px;
  position: sticky;
  top: 57px;
  height: calc(100vh - 57px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.pane-report {
  padding: 0 40px 64px;
  min-width: 0;
  position: relative;
}
#reportPane { padding-top: 29px; }

/* scroll-linked reading progress (Motion scroll()) */
.read-progress {
  position: sticky;
  top: 57px;
  height: 3px;
  margin: 0 -40px;
  background: transparent;
  z-index: var(--z-sticky);
}
.read-progress-fill {
  height: 100%;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
}

/* ---------- form (instrument console) ---------- */
.field { margin-bottom: 18px; }
.field label,
fieldset.field legend {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 7px;
  color: var(--console-mut);
}
.field .opt {
  font-family: var(--sans);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--console-mut);
  margin-left: 4px;
}
textarea, input[type="text"], input:not([type]) {
  width: 100%;
  border: 1px solid var(--console-line);
  border-radius: var(--r-ctl);
  background: var(--console-2);
  color: var(--console-ink);
  padding: 10px 12px;
  font: 400 13.5px/1.6 var(--sans);
  letter-spacing: 0.01em;
  transition: border-color 150ms var(--ease), background 150ms var(--ease);
}
textarea { resize: vertical; min-height: 72px; }
textarea::placeholder, input::placeholder { color: var(--console-mut); }
textarea:hover, input:hover { border-color: oklch(0.45 0.03 150); }
textarea:focus-visible, input:focus-visible {
  outline: 2px solid var(--led);
  outline-offset: 0;
  border-color: transparent;
}
.pane-input :is(button, a, input, textarea, summary):focus-visible {
  outline-color: var(--led);
}

/* model picker: two searchable comboboxes */
fieldset.field-model { border: 0; padding: 0; margin: 0 0 18px; }
fieldset.field-model legend { padding: 0; }
.combo-row {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 8px;
}
.combo { position: relative; }
.combo input { padding-right: 30px; }
.combo-toggle {
  position: absolute;
  top: 1px; right: 1px; bottom: 1px;
  width: 28px;
  border: 0;
  background: transparent;
  color: var(--console-mut);
  font-size: 11px;
  cursor: pointer;
  border-radius: 0 var(--r-ctl) var(--r-ctl) 0;
}
.combo-toggle:hover { color: var(--console-ink); }
.combo-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  z-index: var(--z-dropdown);
  margin: 0;
  padding: 4px;
  list-style: none;
  background: var(--console-2);
  border: 1px solid var(--console-line);
  border-radius: var(--r-ctl);
  box-shadow: 0 10px 28px oklch(0 0 0 / 0.45);
  /* exactly 4 rows visible; the rest scrolls */
  max-height: calc(4 * 32px + 8px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.combo-list li {
  height: 32px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 9px;
  font-size: 13px;
  color: var(--console-ink);
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.combo-list li .co-provider {
  font-size: 11.5px;
  color: var(--console-mut);
  margin-left: auto;
  flex-shrink: 0;
}
.combo-list li:hover { background: oklch(0.28 0.025 150); }
.combo-list li[aria-selected="true"] { background: var(--led-dim); color: var(--led); }
.combo-list li.co-empty { color: var(--console-mut); cursor: default; }
.combo-list li.co-empty:hover { background: transparent; }

/* tone selector */
fieldset.field-tone { border: 0; padding: 0; margin: 0 0 18px; }
fieldset.field-tone legend { padding: 0; }
.tone-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tone-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
label.tone-chip {
  /* undo the etched-label style .field label applies; chips are controls */
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--console-ink);
  margin-bottom: 0;
  display: inline-block;
}
.tone-chip span {
  display: inline-block;
  border: 1px solid var(--console-line);
  background: transparent;
  color: var(--console-ink);
  border-radius: 999px;
  padding: 5px 14px;
  cursor: pointer;
  transition: border-color 150ms var(--ease), background 150ms var(--ease), color 150ms var(--ease);
}
.tone-chip span:hover { border-color: var(--led); }
.tone-chip input:checked + span {
  background: var(--led-dim);
  border-color: var(--led);
  color: var(--led);
  font-weight: 600;
}
.tone-chip input:focus-visible + span {
  outline: 2px solid var(--led);
  outline-offset: 2px;
}

.actions { display: flex; gap: 10px; margin: 24px 0 0; }
.btn {
  border-radius: var(--r-ctl);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 150ms var(--ease), border-color 150ms var(--ease), opacity 150ms var(--ease);
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary {
  background: var(--led);
  color: oklch(0.16 0.02 150);
  flex: 1;
  letter-spacing: 0.01em;
}
.btn-primary:hover:not(:disabled) { background: oklch(0.82 0.16 148); }
.btn-primary:active:not(:disabled) { background: oklch(0.70 0.14 148); }
.btn-ghost {
  background: transparent;
  color: var(--console-ink);
  border-color: var(--console-line);
}
.btn-ghost:hover:not(:disabled) { border-color: var(--console-mut); }

.samples { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--console-line); }
.samples-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--console-mut);
}
.samples-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  border: 1px solid var(--console-line);
  background: transparent;
  color: var(--console-ink);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 150ms var(--ease), color 150ms var(--ease);
}
.chip:hover { border-color: var(--led); color: var(--led); }

/* ---------- report pane: states ---------- */
.report-empty { max-width: 62ch; margin-top: 8vh; }
.report-empty h1 {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin-bottom: 14px;
}
.report-empty p { color: var(--muted); margin-bottom: 12px; max-width: 58ch; }
.report-empty .empty-honesty {
  margin-top: 28px;
  font-size: 13.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  padding: 14px 16px;
  background: var(--surface);
}
.report-empty .empty-honesty strong { color: var(--ink); font-weight: 600; }

.report-error {
  max-width: 56ch;
  margin-top: 8vh;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  padding: 20px 22px;
  background: var(--bad-tint);
}
.report-error h2 { font-size: 16px; margin-bottom: 8px; }
.report-error p { font-size: 14px; color: var(--ink); }
.report-error code { font-family: var(--mono); font-size: 12.5px; }

/* skeleton */
.skel-row {
  height: 74px;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  margin-bottom: 12px;
  position: relative;
  overflow: hidden;
  background: var(--surface);
}
.skel-row::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 30%, oklch(1 0 0 / 0.65) 50%, transparent 70%);
  transform: translateX(-100%);
  animation: shimmer 1.6s var(--ease) infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }
.skel-note {
  font-size: 13.5px; color: var(--muted);
  margin: 6px 0 18px;
  font-variant-numeric: tabular-nums;
}

/* ---------- report ---------- */
.report { max-width: 860px; }

.report-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}
.report-head-left { min-width: 0; }
.report-title {
  font-size: 24px;
  font-weight: 650;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
.task-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
.task-chip {
  border: 1px solid var(--primary);
  color: var(--primary-deep);
  border-radius: 999px;
  padding: 2px 11px;
  font-size: 12.5px;
  font-weight: 600;
}
.signals { margin-top: 10px; font-size: 13px; color: var(--muted); }
.signals summary { cursor: pointer; user-select: none; }
.signals summary:hover { color: var(--ink); }
.signals ul { margin: 8px 0 0; padding-left: 18px; }
.signals li { margin-bottom: 2px; }

.overall {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  text-align: right;
}
.overall-text { order: -1; }
.gauge { display: block; }
.gauge .gauge-track { stroke: var(--surface-2); }
.gauge .gauge-fill {
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
}
.gauge-good { stroke: var(--good); }
.gauge-warn { stroke: var(--warn); }
.gauge-bad  { stroke: var(--bad); }
.gauge-num {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  fill: var(--ink);
}
.overall-band { font-size: 13.5px; font-weight: 650; }
.overall-note {
  font-size: 12px;
  color: var(--muted);
  max-width: 26ch;
  margin-top: 5px;
  line-height: 1.45;
}
.band-good { color: var(--good); }
.band-warn { color: var(--warn-deep); }
.band-bad  { color: var(--bad); }

/* honesty notes */
.honesty {
  margin: 16px 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: var(--surface);
  padding: 12px 16px;
  font-size: 13px;
  color: var(--muted);
}
.honesty-title {
  font-weight: 600;
  color: var(--ink);
  font-size: 13px;
  margin-bottom: 6px;
}
.honesty ul { margin: 0; padding-left: 18px; }
.honesty li { margin-bottom: 4px; }
.honesty li:last-child { margin-bottom: 0; }

/* section headings inside report */
.report h2.sect {
  font-size: 16px;
  font-weight: 650;
  margin: 40px 0 16px;
}
.report h2.sect .count { color: var(--muted); font-weight: 500; font-size: 13.5px; }

/* ---------- verdict rows ---------- */
.verdict {
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  margin-bottom: 10px;
  background: var(--bg);
  overflow: hidden;
}
.verdict summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 16px;
  display: block;
}
.verdict summary::-webkit-details-marker { display: none; }
.verdict summary:hover { background: var(--surface); }
.verdict[open] summary { border-bottom: 1px solid var(--line); }

.v-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.v-name { font-size: 14.5px; font-weight: 600; flex: 1; min-width: 0; }
.v-caret {
  color: var(--muted);
  font-size: 11px;
  transition: transform 180ms var(--ease);
}
.verdict[open] .v-caret { transform: rotate(90deg); }

.badge {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 4px;
  padding: 2px 7px;
  border: 1px solid;
  white-space: nowrap;
}
.badge-proxy { color: var(--warn-deep); border-color: var(--warn); background: var(--warn-tint); }
.badge-judge { color: var(--judge); border-color: var(--judge); background: var(--accent-tint); }
.badge-family { color: var(--accent); border-color: var(--accent); background: var(--accent-tint); }

.v-meter {
  display: flex;
  align-items: center;
  gap: 12px;
}
.v-score {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  min-width: 42px;
}
.v-score.skipped { color: var(--muted); font-weight: 400; }
.v-track {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--surface-2);
  overflow: hidden;
}
.v-fill {
  height: 100%;
  border-radius: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  /* fill animation driven by Motion spring in app.js */
}
.fill-good { background: var(--good); }
.fill-warn { background: var(--warn); }
.fill-bad  { background: var(--bad); }
.v-bandword {
  font-size: 12px;
  font-weight: 600;
  min-width: 52px;
  text-align: right;
}
.v-verdict {
  margin-top: 9px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.5;
}

.v-body { padding: 16px; }
.v-source {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
}
.v-source::before { content: "method · "; font-weight: 600; }

.v-group-title {
  font-size: 12.5px;
  font-weight: 650;
  margin: 14px 0 8px;
}
.v-group-title.t-good { color: var(--good); }
.v-group-title.t-bad { color: var(--bad); }
.v-strength {
  font-size: 13.5px;
  margin-bottom: 4px;
  padding-left: 18px;
  position: relative;
}
.v-strength::before {
  content: "✓";
  position: absolute; left: 0;
  color: var(--good);
  font-weight: 600;
}

.finding { margin-bottom: 14px; }
.finding-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.finding-mode {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--bad);
  white-space: nowrap;
}
.finding-detail { font-size: 13.5px; line-height: 1.55; }

.evidence {
  border: 1px solid var(--line);
  border-radius: var(--r-ctl);
  background: var(--surface-2);
  padding: 9px 12px;
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink);
  overflow-x: auto;
}
.evidence .ev-tag {
  display: block;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 3px;
}

/* skipped parameters */
.verdict.is-skipped summary { cursor: default; }
.verdict.is-skipped .v-verdict { color: var(--muted); }
.verdict.is-skipped .v-name { color: var(--muted); font-weight: 500; }

/* ---------- repair prompts ---------- */
.repair {
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  margin-bottom: 14px;
  overflow: hidden;
}
.repair-head { padding: 14px 16px 0; }
.repair-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.repair-title { font-size: 14.5px; font-weight: 650; flex: 1; }
.repair-diagnosis {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 12px;
  max-width: 70ch;
}
.repair-block { border-top: 1px solid var(--line); }
.repair-block-bar {
  display: flex;
  justify-content: flex-end;
  padding: 8px 12px;
  background: var(--surface-2);
}
.repair-pre {
  margin: 0;
  background: var(--surface-2);
  padding: 0 16px 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  max-height: 320px;
  overflow-y: auto;
}
.copy-btn {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: var(--r-ctl);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  cursor: pointer;
  transition: border-color 150ms var(--ease), color 150ms var(--ease);
}
.copy-btn:hover { border-color: var(--primary); color: var(--primary-deep); }
.copy-btn.copied { color: var(--good); border-color: var(--good); }
.repair-foot {
  padding: 8px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.repair-foot::before { content: "technique · "; font-weight: 600; }

.no-repairs {
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  background: var(--primary-tint);
  color: var(--primary-deep);
  font-size: 14px;
  padding: 16px 18px;
}

/* ---------- reveal motion ----------
   Reveals are driven by Motion (vendor/motion.js) in app.js; elements are
   visible by default so a script failure never blanks the report. */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  background: var(--ink);
  color: var(--bg);
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 8px;
  padding: 10px 18px;
  box-shadow: 0 6px 24px oklch(0 0 0 / 0.18);
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .split { grid-template-columns: 1fr; }
  .pane-input {
    position: static;
    height: auto;
    overflow: visible;
  }
  .pane-report { padding: 0 20px 48px; }
  #reportPane { padding-top: 21px; }
  .read-progress { margin: 0 -20px; }
  .report-head { flex-direction: column; gap: 14px; }
  .overall { text-align: left; }
  .overall-text { order: 1; }
  .overall-note { max-width: 60ch; }
  .brand-note { display: none; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  /* JS motion is gated on the same query in app.js; this covers the CSS side */
  .skel-row::after { animation: none; }
  .engine-pill[data-state="waking"] .engine-dot { animation: none; }
  .v-caret { transition: none; }
  * { scroll-behavior: auto !important; }
}