/* Finance AI — shared ledger design system.
   Extracted from the MIS agent's demo UI so every agent page reads as one book. */

:root {
  color-scheme: light dark;
  --paper: #F1ECDD;
  --paper-raised: #F8F3E4;
  --ink: #201B14;
  --slate: #6B6252;
  --ledger: #9C7A32;
  --ledger-wash: #F3EAD2;
  --alarm: #A32F1E;
  --alarm-wash: #F7E6E1;
  --hairline: #D8CDA8;
  --font-serif: "Bitstream Charter", Charter, Georgia, "Noto Serif", serif;
  --font-mono: "SF Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
  --masthead-h: 64px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #241F17;
    --paper-raised: #2C2619;
    --ink: #EDE6D3;
    --slate: #A79E88;
    --ledger: #C9A344;
    --ledger-wash: #362F1E;
    --alarm: #E2695A;
    --alarm-wash: #332119;
    --hairline: #473D28;
  }
}
/* Manual override — wins regardless of system preference once the reader picks a side. */
:root[data-theme="light"] {
  --paper: #F1ECDD;
  --paper-raised: #F8F3E4;
  --ink: #201B14;
  --slate: #6B6252;
  --ledger: #9C7A32;
  --ledger-wash: #F3EAD2;
  --alarm: #A32F1E;
  --alarm-wash: #F7E6E1;
  --hairline: #D8CDA8;
}
:root[data-theme="dark"] {
  --paper: #241F17;
  --paper-raised: #2C2619;
  --ink: #EDE6D3;
  --slate: #A79E88;
  --ledger: #C9A344;
  --ledger-wash: #362F1E;
  --alarm: #E2695A;
  --alarm-wash: #332119;
  --hairline: #473D28;
}

* { box-sizing: border-box; }

/* The hidden attribute must win over any display rule below. */
[hidden] { display: none !important; }

body {
  font-family: var(--font-serif);
  background: var(--paper);
  color: var(--ink);
  margin: 0;
  padding: calc(var(--masthead-h) + 32px) 24px 80px;
  line-height: 1.55;
}

/* --- Masthead ------------------------------------------------------------ */

.masthead-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  background: var(--paper);
  border-bottom: 1px solid var(--hairline);
}

.masthead-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  row-gap: 8px;
}

.brand {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--ink);
}

.brand a { color: inherit; text-decoration: none; }
.brand a:hover { color: var(--ledger); }
.brand .tag { margin-left: 10px; }

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate);
}

.masthead-nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.masthead-nav a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--slate);
  text-decoration: none;
  padding: 5px 10px;
  border: 1px solid transparent;
}

.masthead-nav a:hover { color: var(--ink); border-color: var(--hairline); }
.masthead-nav a.active {
  color: var(--ink);
  background: var(--ledger-wash);
  border-color: var(--hairline);
}

.eyebrow-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  display: flex;
  border: 1px solid var(--hairline);
}

.theme-option {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: none;
  border: none;
  color: var(--slate);
  padding: 4px 9px;
  cursor: pointer;
}

.theme-option + .theme-option { border-left: 1px solid var(--hairline); }
.theme-option:hover { color: var(--ink); }
.theme-option.active { background: var(--ledger-wash); color: var(--ink); }
.theme-option:focus-visible { outline: 2px solid var(--ledger); outline-offset: -2px; }

.signout {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--slate);
  text-decoration: none;
}
.signout:hover { color: var(--alarm); text-decoration: underline; }

/* --- The open ledger book ------------------------------------------------- */

.ledger-spread {
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 360px;
  align-items: start;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
}

/* The gutter shadow of an open ledger book, spanning the full spread height
   regardless of which page (column) is taller. */
.ledger-spread::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(100% - 361px);
  width: 26px;
  transform: translateX(-13px);
  background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.12), transparent);
  pointer-events: none;
}

.ledger-spread.single { display: block; }
.ledger-spread.single::after { display: none; }

.page { padding: 36px; --page-pad-x: 36px; }

.left-page { border-right: 1px solid var(--hairline); }

.right-page {
  position: sticky;
  top: calc(var(--masthead-h) + 24px);
  align-self: start;
}

h1 {
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.note {
  font-size: 0.92rem;
  color: var(--slate);
  max-width: 52ch;
  margin: 0 0 28px;
}

.rule {
  border: none;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--hairline);
  height: 3px;
  margin: 0 0 8px;
  background: none;
}

.rule-mini {
  border: none;
  border-top: 1px solid var(--hairline);
  height: 0;
  margin: 0 0 18px;
}

/* --- Workpaper groups & attach lines -------------------------------------- */

.entity-group {
  padding: 20px 0;
  border-bottom: 1px solid var(--hairline);
}

.entity-group:first-child { padding-top: 8px; }
.entity-group:last-child { border-bottom: none; }

.entity-name {
  font-size: 1.1rem;
  margin: 0 calc(-1 * var(--page-pad-x)) 14px;
  padding: 9px var(--page-pad-x);
  background: var(--ledger-wash);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.entity-name .sub {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--slate);
}

.line-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 6px;
  margin: 0 -6px;
  border-radius: 3px;
  transition: background 120ms ease;
}

.line-item.dragover { background: var(--ledger-wash); }

.line-item .label {
  font-size: 0.95rem;
  color: var(--ink);
  white-space: nowrap;
}

.leader {
  flex: 1;
  border-bottom: 1px dotted var(--hairline);
  height: 0;
  transform: translateY(-4px);
}

.slot {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.slot-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  top: 0;
  left: 0;
}

.slot-trigger {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ledger);
  background: none;
  border: 1px solid var(--ledger);
  padding: 4px 10px;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  display: inline-block;
  transition: background 120ms ease, color 120ms ease;
}

.slot-trigger:hover { background: var(--ledger-wash); }
.slot-trigger:disabled { opacity: 0.5; cursor: default; }

.slot-input:focus-visible + .slot-trigger {
  outline: 2px solid var(--ledger);
  outline-offset: 2px;
}

.slot-filename {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.slot-filename:empty { display: none; }

.slot.attached .slot-filename { color: var(--ledger); }
.slot.attached .slot-trigger { display: none; }

.slot.flagged .slot-filename { color: var(--alarm); }
.slot.flagged .slot-trigger { border-color: var(--alarm); color: var(--alarm); }

.slot-clear {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1;
  background: none;
  border: none;
  color: var(--slate);
  cursor: pointer;
  padding: 4px 2px;
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: color 120ms ease, text-decoration-color 120ms ease;
}

.slot-clear:hover {
  color: var(--alarm);
  text-decoration-color: var(--alarm);
}
.slot-clear:focus-visible { outline: 2px solid var(--ledger); outline-offset: 1px; }
.slot.attached .slot-clear { display: inline; }

/* --- Right-page workpaper status ------------------------------------------ */

.page-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--slate);
  margin: 0 0 16px;
}

.checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checklist li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 0.88rem;
  color: var(--slate);
  transition: color 120ms ease;
}

.checklist .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--slate);
  flex: none;
  transform: translateY(1px);
  transition: background 120ms ease, border-color 120ms ease;
}

.checklist li.done { color: var(--ink); }
.checklist li.done .dot { background: var(--ledger); border-color: var(--ledger); }
.checklist li.flagged { color: var(--alarm); }
.checklist li.flagged .dot { background: var(--alarm); border-color: var(--alarm); }

.tie-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--slate);
  margin-bottom: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
}

.tie-row .count { color: var(--ink); }
.tie-row .count.complete { color: var(--ledger); }

/* --- Buttons --------------------------------------------------------------- */

.btn-ink {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--paper-raised);
  background: var(--ink);
  border: none;
  padding: 15px 0;
  cursor: pointer;
  transition: background 150ms ease;
}

.btn-ink:hover:not(:disabled) { background: var(--ledger); }
.btn-ink:disabled { opacity: 0.55; cursor: default; }
.btn-ink:focus-visible { outline: 2px solid var(--ledger); outline-offset: 3px; }

.btn-line {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
  background: none;
  border: 1px solid var(--ink);
  padding: 14px 0;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn-line:hover:not(:disabled) {
  border-color: var(--ledger);
  color: var(--ledger);
  background: var(--ledger-wash);
}
.btn-line:disabled { opacity: 0.55; cursor: default; }
.btn-line:focus-visible { outline: 2px solid var(--ledger); outline-offset: 3px; }

/* --- Status line ------------------------------------------------------------ */

.status-line {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  display: none;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
}

.status-line.visible { display: flex; }
.status-line.busy { color: var(--slate); }
.status-line.busy .mark::after {
  content: "···";
  animation: ellipsis 1.2s steps(4, end) infinite;
}
.status-line.ok { color: var(--ledger); background: var(--ledger-wash); }
.status-line.error { color: var(--alarm); background: var(--alarm-wash); }

@keyframes ellipsis {
  0% { content: ""; }
  25% { content: "·"; }
  50% { content: "··"; }
  75% { content: "···"; }
}

/* --- Form controls (selects, text inputs) ----------------------------------- */

.field-mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hairline);
  padding: 7px 10px;
  outline: none;
}

.field-mono:focus { border-color: var(--ledger); }
.field-mono::placeholder { color: var(--slate); opacity: 0.8; }

select.field-mono { cursor: pointer; }

/* --- Chips (column tags) ----------------------------------------------------- */

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips:not(:empty) { margin: 12px 0; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--ledger-wash);
  border: 1px solid var(--hairline);
  padding: 4px 6px 4px 11px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink);
}

.chip button {
  background: none;
  border: 0;
  color: var(--slate);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 1px 4px;
}

.chip button:hover { color: var(--alarm); }

/* --- Tables ------------------------------------------------------------------- */

.table-scroll {
  border: 1px solid var(--hairline);
  background: var(--paper-raised);
  overflow: auto;
  max-height: 440px;
  margin-bottom: 26px;
}

table.ledger-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.82rem;
  white-space: nowrap;
}

.ledger-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--ledger-wash);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--hairline);
}

.ledger-table td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--hairline);
}

.ledger-table td.num {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.ledger-table tr.miss td { background: var(--alarm-wash); }

.pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 1px 8px;
  border: 1px solid currentColor;
}

.pill.yes { color: var(--ledger); }
.pill.no { color: var(--alarm); }

/* --- Stat cells ------------------------------------------------------------------ */

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 0 0 26px;
}

.stat {
  border: 1px solid var(--hairline);
  background: var(--paper-raised);
  padding: 12px 14px;
}

.stat .n {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.stat .l {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate);
  margin-top: 3px;
}

.stat.ok .n { color: var(--ledger); }
.stat.warn .n { color: var(--alarm); }

/* --- Accessibility & responsive ---------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .status-line.busy .mark::after { animation: none; content: "…"; }
  * { transition: none !important; animation: none !important; }
}

@media (max-width: 900px) {
  .ledger-spread { grid-template-columns: 1fr; }
  .ledger-spread::after { display: none; }
  .left-page { border-right: none; border-bottom: 1px solid var(--hairline); }
  .right-page { position: static; }
}

@media (max-width: 560px) {
  body { padding: calc(var(--masthead-h) + 24px) 10px 60px; }
  .masthead-inner { padding: 12px 12px; }
  .page { padding: 22px 18px; --page-pad-x: 18px; }
  h1 { font-size: 1.55rem; }
  .line-item { flex-wrap: wrap; row-gap: 8px; }
  .line-item .label { flex: 1 1 100%; white-space: normal; }
  .leader { display: none; }
  .slot { flex: 1 1 100%; min-width: 0; }
  .slot-filename { flex: 1; min-width: 0; max-width: none; }
}