/* ============================================================
   Corporate Resolution Studio
   Visual language: the statutory instrument. Ruled, dense and
   precise, with a marginal clause-number rail and a review seal
   that only certifies once every gate is cleared.
   ============================================================ */

:root {
  --ink:        #12161c;
  --ink-soft:   #4a5462;
  --ink-faint:  #7b8593;
  --paper:      #fbfaf7;
  --panel:      #ffffff;
  --rule:       #dcd9d1;
  --rule-soft:  #ebe8e1;
  --seal:       #1b3a5c;
  --seal-tint:  #eef3f8;
  --amber:      #a45309;
  --amber-tint: #fdf4e7;
  --flag:       #96122f;
  --flag-tint:  #fcf0f2;
  --certified:  #14603c;
  --cert-tint:  #edf7f1;

  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", Menlo,
          Consolas, "Liberation Mono", monospace;

  --gap: 1.15rem;
  --radius: 3px;
}

*, *::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: 15px;
  line-height: 1.5;
}

:focus-visible {
  outline: 2px solid var(--seal);
  outline-offset: 2px;
}

/* ─────────────────────────────── masthead ───────────────────────────────── */

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.15rem clamp(1rem, 3vw, 2.25rem);
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px double rgba(251, 250, 247, 0.35);
}

.masthead-mark { display: flex; align-items: flex-start; gap: 0.95rem; }

.scales {
  font-family: var(--mono);
  font-size: 2rem;
  line-height: 1;
  color: var(--paper);
  opacity: 0.55;
  padding-top: 0.1rem;
}

.masthead h1 {
  margin: 0;
  font-size: 1.28rem;
  font-weight: 620;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.masthead-sub {
  margin: 0.3rem 0 0;
  font-family: var(--mono);
  font-size: 0.665rem;
  letter-spacing: 0.045em;
  color: rgba(251, 250, 247, 0.62);
  max-width: 62ch;
}

/* the seal — the one element that changes state */
.stamp {
  font-family: var(--mono);
  text-align: center;
  padding: 0.5rem 1.1rem;
  border: 2px solid currentColor;
  border-radius: var(--radius);
  transform: rotate(-1.6deg);
  min-width: 12rem;
  color: rgba(251, 250, 247, 0.42);
  transition: color 0.25s ease, box-shadow 0.25s ease;
}

.stamp-line-1 {
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.stamp-line-2 {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.11em;
  margin-top: 0.13rem;
  opacity: 0.82;
}

.stamp[data-state="pending"] { color: #e8a33d; }
.stamp[data-state="certified"] {
  color: #63d19a;
  box-shadow: 0 0 0 3px rgba(99, 209, 154, 0.13);
}

/* ─────────────────────────────── layout ─────────────────────────────────── */

.shell {
  display: grid;
  grid-template-columns: 20rem minmax(0, 1fr);
  align-items: start;
  max-width: 1500px;
  margin: 0 auto;
}

.rail {
  position: sticky;
  top: 0;
  padding: 1.5rem 1.35rem 3rem;
  border-right: 1px solid var(--rule);
  background: var(--paper);
  max-height: 100vh;
  overflow-y: auto;
}

.rail-block + .rail-block {
  margin-top: 1.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule-soft);
}

.rail-head {
  margin: 0 0 0.8rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.rail-note {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.rail-status {
  margin: 0.6rem 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--ink-faint);
  min-height: 1em;
}

.rail-status[data-tone="ok"]   { color: var(--certified); }
.rail-status[data-tone="bad"]  { color: var(--flag); }

.sheet { padding: 1.9rem clamp(1rem, 3.2vw, 2.75rem) 4rem; min-width: 0; }

/* ───────────────────────── clause rail (signature) ──────────────────────── */

.clause {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr);
  gap: 0 1.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
  position: relative;
}

.clause:first-of-type { border-top: 0; padding-top: 0.35rem; }

/* hairline dropping from the clause number, as in a ruled statute */
.clause-no {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--seal);
  position: relative;
  padding-top: 0.1rem;
}

.clause-no::after {
  content: "";
  position: absolute;
  left: 0.65rem;
  top: 2rem;
  bottom: -1.9rem;
  width: 1px;
  background: var(--rule-soft);
}

.clause:last-of-type .clause-no::after { display: none; }

.clause-body { min-width: 0; }

.clause-title {
  margin: 0 0 1.1rem;
  font-size: 1.02rem;
  font-weight: 640;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.sub-title {
  margin: 1.9rem 0 0.2rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.sub-note { margin: 0 0 0.9rem; font-size: 0.79rem; color: var(--ink-soft); }

.is-hidden { display: none !important; }

/* ─────────────────────────────── fields ─────────────────────────────────── */

.grid { display: grid; gap: var(--gap); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.stack { display: flex; flex-direction: column; gap: var(--gap); }

.field { display: flex; flex-direction: column; gap: 0.32rem; min-width: 0; }
.field-wide { margin-top: var(--gap); }

.field-label {
  font-family: var(--mono);
  font-size: 0.645rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.field-hint {
  font-size: 0.73rem;
  color: var(--ink-faint);
  line-height: 1.4;
}

.field input[type="text"],
.field input[type="date"],
.field select,
.field textarea {
  width: 100%;
  padding: 0.5rem 0.62rem;
  font-family: var(--sans);
  font-size: 0.875rem;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color 0.14s ease, box-shadow 0.14s ease;
}

.field textarea { resize: vertical; line-height: 1.5; }

.field input:hover, .field select:hover, .field textarea:hover { border-color: #c3bfb4; }

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--seal);
  box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1);
}

.field ::placeholder { color: #b3adA0; }

.field-check {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
  align-self: end;
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding-bottom: 0.35rem;
}

.field-check input { margin-top: 0.15rem; accent-color: var(--seal); }
.field-check .field-hint { flex-basis: 100%; margin-left: 1.4rem; }

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--rule-soft);
  padding: 0.05em 0.3em;
  border-radius: 2px;
}

/* ─────────────────────────────── buttons ────────────────────────────────── */

.btn {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 0.6rem 1.05rem;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.14s ease, border-color 0.14s ease, color 0.14s ease;
}

.btn:hover:not(:disabled) { border-color: var(--seal); color: var(--seal); }
.btn:disabled { opacity: 0.42; cursor: not-allowed; }

.btn-primary {
  background: var(--seal);
  border-color: var(--seal);
  color: #fff;
}

.btn-primary:hover:not(:disabled) { background: #14304d; border-color: #14304d; color: #fff; }

.btn-quiet { background: transparent; }

.btn-generate { margin-top: 1.45rem; width: 100%; padding: 0.82rem; letter-spacing: 0.15em; }

/* ───────────────────────────── file upload ──────────────────────────────── */

.dropzone {
  display: block;
  text-align: center;
  padding: 1.1rem 0.75rem;
  border: 1px dashed var(--rule);
  border-radius: var(--radius);
  background: var(--panel);
  cursor: pointer;
  transition: border-color 0.14s ease, background 0.14s ease;
}

.dropzone:hover, .dropzone.is-over { border-color: var(--seal); background: var(--seal-tint); }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.dropzone-text { display: block; font-size: 0.8rem; font-weight: 550; }

.dropzone-hint {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

.filelist {
  list-style: none;
  margin: 0.65rem 0 0.75rem;
  padding: 0;
  font-family: var(--mono);
  font-size: 0.67rem;
  color: var(--ink-soft);
}

.filelist li {
  padding: 0.22rem 0 0.22rem 0.85rem;
  position: relative;
  overflow-wrap: anywhere;
}

.filelist li::before { content: "▸"; position: absolute; left: 0; color: var(--ink-faint); }

#readBtn { width: 100%; }

/* ─────────────────────────────── history ───────────────────────────────── */

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

.history li {
  font-size: 0.775rem;
  padding: 0.42rem 0;
  border-bottom: 1px dotted var(--rule);
  color: var(--ink-soft);
  line-height: 1.35;
}

.history li:last-child { border-bottom: 0; }
.history-empty { color: var(--ink-faint); font-style: italic; }

.history time {
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  color: var(--ink-faint);
}

/* ────────────────────────── purpose switch ─────────────────────────────── */

.switch {
  display: inline-flex;
  margin-bottom: 1.2rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.switch-opt {
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 0.55rem 1rem;
  background: var(--panel);
  color: var(--ink-soft);
  border: 0;
  border-right: 1px solid var(--rule);
  cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease;
}

.switch-opt:last-child { border-right: 0; }
.switch-opt:hover { background: var(--seal-tint); }
.switch-opt.is-on { background: var(--seal); color: #fff; }
.switch-opt .count { opacity: 0.7; margin-left: 0.35rem; }

.results-count {
  margin: 0.9rem 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
  color: var(--ink-faint);
}

.results {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 21rem;
  overflow-y: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--panel);
}

.results li { border-bottom: 1px solid var(--rule-soft); }
.results li:last-child { border-bottom: 0; }

.result-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.6rem 0.8rem;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.83rem;
  color: var(--ink);
  transition: background 0.12s ease;
}

.result-btn:hover { background: var(--seal-tint); }
.result-btn.is-on { background: var(--seal-tint); box-shadow: inset 3px 0 0 var(--seal); }

.result-meta {
  display: block;
  margin-top: 0.15rem;
  font-family: var(--mono);
  font-size: 0.615rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.mapping {
  margin: 1.15rem 0 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  padding: 0.5rem 0.7rem;
  background: var(--seal-tint);
  border-left: 2px solid var(--seal);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ─────────────────────────────── alerts ────────────────────────────────── */

.alerts:not(:empty) { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }

.alert {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  gap: 0.7rem;
  align-items: baseline;
  padding: 0.6rem 0.8rem;
  font-size: 0.815rem;
  line-height: 1.45;
  border-radius: var(--radius);
  border-left: 2px solid;
}

.alert-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.alert-info    { background: var(--seal-tint);  border-color: var(--seal);  color: #17324f; }
.alert-warning { background: var(--amber-tint); border-color: var(--amber); color: #7b3d05; }
.alert-error   { background: var(--flag-tint);  border-color: var(--flag);  color: #7a0f26; }

/* ────────────────────── legal panel and route metrics ──────────────────── */

.panel {
  margin: 0;
  padding: 0.95rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.735rem;
  line-height: 1.62;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-left: 2px solid var(--seal);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: 1rem;
}

.metric {
  padding: 0.7rem 0.8rem;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.metric-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.metric-value {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--seal);
}

/* ───────────────────────────── expander ────────────────────────────────── */

.expander {
  margin-top: 1.1rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--panel);
}

.expander summary {
  padding: 0.6rem 0.85rem;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.expander summary:hover { color: var(--seal); }

.reslib {
  margin: 0;
  padding: 0 0.85rem 0.85rem 1.9rem;
  font-size: 0.83rem;
  color: var(--ink-soft);
}

.reslib li { padding: 0.16rem 0; }

/* ──────────────────────── checklist and gate ───────────────────────────── */

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

.checklist li {
  padding: 0.55rem 0;
  border-bottom: 1px dotted var(--rule);
}

.checklist li:last-child { border-bottom: 0; }

.check-row { display: flex; gap: 0.65rem; align-items: flex-start; cursor: pointer; }
.check-row input { margin-top: 0.2rem; accent-color: var(--seal); flex: none; }
.check-title { font-size: 0.875rem; font-weight: 550; }

.check-detail {
  display: block;
  font-size: 0.775rem;
  color: var(--ink-faint);
  margin-top: 0.1rem;
  line-height: 1.4;
}

.gate {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.gate-item {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  padding: 0.75rem 0.8rem;
  font-size: 0.815rem;
  line-height: 1.35;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.14s ease, background 0.14s ease;
}

.gate-item:hover { border-color: var(--seal); }
.gate-item input { margin-top: 0.13rem; accent-color: var(--certified); flex: none; }
.gate-item.is-done { background: var(--cert-tint); border-color: #9dcbb4; }

.gate-status {
  margin: 0.9rem 0 0;
  padding: 0.6rem 0.8rem;
  font-family: var(--mono);
  font-size: 0.71rem;
  line-height: 1.5;
  border-radius: var(--radius);
  border-left: 2px solid;
  background: var(--amber-tint);
  border-color: var(--amber);
  color: #7b3d05;
}

.gate-status.is-clear {
  background: var(--cert-tint);
  border-color: var(--certified);
  color: #0f4c30;
}

/* ────────────────────────── document pack ─────────────────────────────── */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.55rem;
  margin-bottom: 0.9rem;
}

.tab {
  font-family: var(--mono);
  font-size: 0.655rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.45rem 0.72rem;
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.tab:hover { background: var(--seal-tint); color: var(--seal); }
.tab.is-on { background: var(--ink); color: var(--paper); }

.doc {
  width: 100%;
  min-height: 30rem;
  padding: 1.35rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.775rem;
  line-height: 1.68;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  resize: vertical;
  white-space: pre-wrap;
}

.doc:focus { outline: none; border-color: var(--seal); box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1); }

.actions { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1rem; }

/* ────────────────────────────── colophon ──────────────────────────────── */

.colophon {
  margin-top: 2.5rem;
  padding-top: 1.6rem;
  border-top: 3px double var(--rule);
}

.colophon-head {
  margin: 0 0 0.7rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.hierarchy {
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
  counter-reset: h;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.5rem;
  font-size: 0.815rem;
  color: var(--ink-soft);
}

.hierarchy li { counter-increment: h; position: relative; padding-left: 1.5rem; }

.hierarchy li::before {
  content: counter(h);
  position: absolute;
  left: 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--seal);
  border: 1px solid var(--rule);
  border-radius: 2px;
  width: 1.1rem;
  text-align: center;
  line-height: 1.25;
}

.disclaimer { margin: 0; font-size: 0.78rem; line-height: 1.55; color: var(--ink-faint); max-width: 85ch; }

/* ─────────────────────────────── toast ────────────────────────────────── */

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translate(-50%, 1.5rem);
  padding: 0.65rem 1.15rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 60;
  max-width: 90vw;
  text-align: center;
}

.toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.toast[data-tone="bad"] { background: var(--flag); }

/* ───────────────────────────── responsive ─────────────────────────────── */

@media (max-width: 1080px) {
  .shell { grid-template-columns: 1fr; }
  .rail {
    position: static;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }
  .metrics, .gate { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  body { font-size: 14px; }
  .grid-2, .grid-3 { grid-template-columns: minmax(0, 1fr); }
  .clause { grid-template-columns: 2.4rem minmax(0, 1fr); gap: 0 0.9rem; }
  .clause-no::after { left: 0.5rem; }
  .metrics, .gate { grid-template-columns: minmax(0, 1fr); }
  .masthead { justify-content: flex-start; }
  .stamp { transform: none; }
  .actions .btn { flex: 1 1 auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}