/* Inscribe — ink on paper, set in a press room.
   Deliberately not the dark-slate-plus-neon-gradient look: no glows, no
   emoji, hairline rules instead of glassmorphism, and real typographic
   hierarchy doing the work colour would otherwise do. */

:root {
  --ink:        #17140f;  /* warm black, never blue-black */
  --ink-raise:  #1e1a14;
  --ink-sink:   #100e0a;
  --rule:       #302a21;
  --rule-soft:  #241f19;

  --paper:      #ece5d8;
  --paper-mute: #a2988a;
  --paper-faint:#6e665a;

  --vermilion:  #c8552b;  /* the single accent: printer's red */
  --sage:       #8a9a72;
  --amber:      #c79a3e;
  --oxblood:    #b0453a;

  --serif: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --sans:  'IBM Plex Sans', ui-sans-serif, system-ui, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;

  --gap: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  /* faint laid-paper texture; almost subliminal */
  background-image: repeating-linear-gradient(
    90deg, rgba(236,229,216,.014) 0 1px, transparent 1px 3px
  );
}

#app { display: flex; flex-direction: column; height: 100%; }

::selection { background: rgba(200,85,43,.3); }

/* ── Masthead ─────────────────────────────────────────── */

.masthead {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gap); height: 58px;
  border-bottom: 1px solid var(--rule);
  background: var(--ink-sink);
  flex: none;
}

.brand { display: flex; align-items: baseline; gap: 11px; }

.colophon {
  font-family: var(--serif);
  font-size: 30px; line-height: 1;
  color: var(--vermilion);
  border: 1px solid var(--rule);
  width: 34px; height: 34px;
  display: grid; place-items: center;
  align-self: center;
}

.brand-text h1 {
  font-family: var(--serif);
  font-size: 25px; font-weight: 400; line-height: 1;
  letter-spacing: .005em;
}

.strap {
  font-size: 10.5px; color: var(--paper-faint);
  letter-spacing: .11em; text-transform: uppercase;
  margin-top: 3px;
}

.masthead-actions { display: flex; align-items: center; gap: 10px; }

.standing {
  display: flex; align-items: center; gap: 7px;
  font-size: 10px; letter-spacing: .13em; text-transform: uppercase;
  color: var(--paper-faint);
  padding-right: 4px;
}

.nib {
  width: 6px; height: 6px; background: var(--sage);
  /* a nib, not a pulsing orb */
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

/* ── Buttons ──────────────────────────────────────────── */

.btn {
  font-family: var(--sans);
  font-size: 12px; font-weight: 500;
  padding: 6px 13px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--paper);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .12s, background .12s, color .12s;
}
.btn:hover { border-color: var(--paper-faint); }
.btn:focus-visible { outline: 1px solid var(--vermilion); outline-offset: 1px; }

.btn-ink {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: #17140f;
  font-weight: 600;
}
.btn-ink:hover { background: #d75f34; border-color: #d75f34; }
.btn-quiet { color: var(--paper-mute); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.mark {
  background: none; border: none; cursor: pointer;
  color: var(--paper-faint); font-family: var(--mono);
  font-size: 13px; width: 20px; height: 20px;
  display: grid; place-items: center;
}
.mark:hover { color: var(--vermilion); }

/* ── Quires (panels) ──────────────────────────────────── */

.workspace { display: flex; flex: 1; min-height: 0; }

.quire {
  display: flex; flex-direction: column; min-height: 0;
  background: var(--ink);
}

.quire-head {
  display: flex; align-items: center; justify-content: space-between;
  height: 30px; padding: 0 12px;
  border-bottom: 1px solid var(--rule-soft);
  flex: none;
}

.folio {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--paper-mute);
  font-style: italic;
}

.quire-files  { width: 214px; flex: none; border-right: 1px solid var(--rule); }
.quire-main   { flex: 1; min-width: 340px; }
.quire-margin { width: 292px; flex: none; border-left: 1px solid var(--rule); }

/* ── File tree ────────────────────────────────────────── */

.file-tree { flex: 1; overflow-y: auto; padding: 7px 0; }

.file-item {
  display: flex; align-items: center; gap: 8px;
  padding: 3px 12px;
  font-family: var(--mono); font-size: 11.5px;
  color: var(--paper-mute);
  cursor: pointer; white-space: nowrap;
  border-left: 2px solid transparent;
}
.file-item:hover { color: var(--paper); background: var(--ink-raise); }
.file-item.active {
  color: var(--paper); border-left-color: var(--vermilion);
  background: var(--ink-raise);
}
.file-item.directory { color: var(--paper-faint); font-style: italic; }

/* Typographic file marks — no emoji. */
.file-icon {
  font-family: var(--mono); font-size: 10px;
  color: var(--paper-faint); width: 10px; flex: none;
}
.file-item.active .file-icon { color: var(--vermilion); }

/* ── Editor / tabs ────────────────────────────────────── */

.tabs-row {
  display: flex; align-items: stretch; flex: none;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--ink-sink);
}
.tabs-row .tabs { flex: 1; min-width: 0; border-bottom: none; }

.view-toggle {
  display: flex; flex: none; align-items: center;
  padding: 0 8px; gap: 2px; border-left: 1px solid var(--rule-soft);
}
.vt {
  background: none; border: 1px solid transparent; cursor: pointer;
  color: var(--paper-faint); font-family: var(--mono); font-size: 10px;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 2px;
}
.vt:hover { color: var(--paper-mute); }
.vt.active { color: var(--vermilion); border-color: var(--rule); background: var(--ink); }
.vt:disabled { opacity: .35; cursor: not-allowed; }

.tabs {
  display: flex; overflow-x: auto; flex: none;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--ink-sink);
  min-height: 30px;
}

.tab {
  padding: 7px 14px;
  font-family: var(--mono); font-size: 11px;
  color: var(--paper-faint);
  cursor: pointer; white-space: nowrap;
  border-right: 1px solid var(--rule-soft);
  border-bottom: 2px solid transparent;
}
.tab:hover { color: var(--paper-mute); }
.tab.active {
  color: var(--paper); background: var(--ink);
  border-bottom-color: var(--vermilion);
}

.leaf { flex: 1; display: flex; min-height: 0; position: relative; }

.editor {
  flex: 1; resize: none; border: none; outline: none;
  background: var(--ink); color: var(--paper);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.7;
  padding: 16px 18px; tab-size: 2;
}
.editor.hidden { display: none; }

.preview { flex: 1; border: none; background: #fff; display: none; }
.preview.active { display: block; }

/* ── Margin column: tools + ledger ────────────────────── */

.margin-body { flex: 1; overflow-y: auto; padding: 0 12px 14px; }

.gathering { padding-top: 14px; }

.rubric {
  font-size: 9.5px; font-weight: 600;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--paper-faint);
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 7px; margin-bottom: 9px;
  border-bottom: 1px solid var(--rule-soft);
}

.tally {
  font-family: var(--mono); font-size: 10px;
  font-variant-numeric: tabular-nums;
  color: var(--vermilion); letter-spacing: 0;
}

.tool-list { display: flex; flex-direction: column; }

.tool-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.tool-item:last-child { border-bottom: none; }

.tool-name {
  font-family: var(--mono); font-size: 11px;
  color: var(--paper);
  word-break: break-all;
}
.tool-name::before {
  content: '§ '; color: var(--vermilion);
}
.tool-desc {
  font-size: 11px; color: var(--paper-faint);
  margin-top: 3px; line-height: 1.45;
}

.ledger {
  font-family: var(--mono); font-size: 10.5px;
  display: flex; flex-direction: column;
}

.log-entry {
  display: flex; gap: 8px;
  padding: 4px 0 4px 8px;
  border-left: 2px solid var(--rule);
  color: var(--paper-mute);
}
.log-entry.call    { border-left-color: var(--vermilion); }
.log-entry.success { border-left-color: var(--sage); }
.log-entry.warning { border-left-color: var(--amber); }
.log-entry.error   { border-left-color: var(--oxblood); color: #d99a92; }

.log-time {
  color: var(--paper-faint); flex: none;
  font-variant-numeric: tabular-nums;
}
.log-msg { word-break: break-word; }

/* ── Footer quires ────────────────────────────────────── */

.footer-quires {
  display: flex; height: 214px; flex: none;
  border-top: 1px solid var(--rule);
}
.quire-terminal { flex: 1; border-right: 1px solid var(--rule); }
.quire-dialogue { flex: 1; }

.terminal, .chat-log {
  flex: 1; overflow-y: auto; padding: 10px 12px;
  font-family: var(--mono); font-size: 11px; line-height: 1.65;
}

.terminal-line { margin-bottom: 2px; }
.terminal-output { color: var(--paper-mute); white-space: pre-wrap; }

.chat-entry {
  padding: 7px 0 7px 9px;
  margin-bottom: 6px;
  border-left: 2px solid var(--rule);
  font-family: var(--sans); font-size: 12px;
  color: var(--paper);
}
.chat-entry.success { border-left-color: var(--sage); }
.chat-entry.warning { border-left-color: var(--amber); }
.chat-entry.error   { border-left-color: var(--oxblood); }
.chat-time {
  font-family: var(--mono); font-size: 9.5px;
  color: var(--paper-faint); margin-bottom: 3px;
  font-variant-numeric: tabular-nums;
}

/* ── Dictation (goal input) ───────────────────────────── */

.dictation {
  flex: none; padding: 9px 12px 11px;
  border-top: 1px solid var(--rule-soft);
  background: var(--ink-sink);
  display: flex; flex-direction: column; gap: 7px;
}
.dictation-row { display: flex; gap: 7px; }

#agent-goal {
  flex: 1; min-width: 0;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px; outline: none;
  font-family: var(--sans); font-size: 12.5px;
  padding: 7px 10px;
}
#agent-goal::placeholder { color: var(--paper-faint); font-style: italic; }
#agent-goal:focus { border-color: var(--vermilion); }

#agent-model {
  flex: 1;
  background: var(--ink); color: var(--paper-mute);
  border: 1px solid var(--rule); border-radius: 2px;
  font-family: var(--mono); font-size: 10.5px;
  padding: 5px 7px; outline: none;
}
#agent-model:focus { border-color: var(--vermilion); }

/* ── Curtain (demo overlay) ───────────────────────────── */

.curtain {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(16,14,10,.86);
  display: grid; place-items: center; padding: 24px;
  transition: opacity .18s;
}
.curtain.hidden { opacity: 0; pointer-events: none; }

.plate {
  width: 100%; max-width: 430px;
  background: var(--ink);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--vermilion);
  padding: 26px 28px 22px;
}
.plate h2 {
  font-family: var(--serif); font-size: 24px; font-weight: 400;
  margin-bottom: 9px;
}
.plate p {
  font-size: 12.5px; color: var(--paper-mute);
  line-height: 1.6; margin-bottom: 18px;
}

.gauge {
  height: 2px; background: var(--rule);
  overflow: hidden; margin-bottom: 11px;
}
.gauge-fill {
  height: 100%; width: 0%;
  background: var(--vermilion);
  transition: width .45s ease;
}
.gauge-note {
  font-family: var(--mono); font-size: 10.5px;
  color: var(--paper-mute); min-height: 15px;
  margin-bottom: 18px !important;
}

.consent-args {
  background: var(--ink-sink); border: 1px solid var(--rule-soft);
  padding: 8px 10px; font-family: var(--mono); font-size: 10.5px;
  color: var(--paper-mute); max-height: 130px; overflow: auto; margin-bottom: 16px;
}
.consent-acts { display: flex; gap: 8px; justify-content: flex-end; }

/* ── Scrollbars ───────────────────────────────────────── */

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule); }
::-webkit-scrollbar-thumb:hover { background: #3d352a; }

/* ── Narrow ───────────────────────────────────────────── */

@media (max-width: 1180px) {
  .quire-margin { width: 240px; }
}
@media (max-width: 900px) {
  .workspace { flex-direction: column; }
  .quire-files { width: 100%; height: 150px; border-right: none; border-bottom: 1px solid var(--rule); }
  .quire-margin { display: none; }
}

/* The consent gate has to outrank the demo curtain, or the scripted run
   would hide the very dialog it is asking you to answer. */
#consent-overlay { z-index: 120; }