:root {
  --ink:        #1A1814;
  --ink-soft:   #3D3833;
  --ink-mute:   #6F6760;
  --paper:      #F7F2EA;
  --paper-2:    #EFE8DC;
  --paper-edge: #E2D9C7;
  --rule:       #C9BFA8;
  --accent:     #7A1F1F;
  --accent-soft:#A85C3E;
  --highlight:  #F4E3B8;
  --ok:         #4A6B3A;
  --warn:       #B07A2C;
  --shadow:     0 1px 0 rgba(26,24,20,.04), 0 12px 32px -16px rgba(26,24,20,.18);
  --shadow-sm:  0 1px 0 rgba(26,24,20,.06);
  --serif:      "Fraunces", "Georgia", serif;
  --sans:       "Inter Tight", -apple-system, sans-serif;
  --mono:       "JetBrains Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    radial-gradient(rgba(26,24,20,.022) 1px, transparent 1px),
    radial-gradient(rgba(26,24,20,.018) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  pointer-events: none;
  z-index: 0;
}
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.app {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px 80px;
}

/* ===== header ===== */
.header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--ink);
  margin-bottom: 32px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 38px; height: 38px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
  object-fit: cover;
}
.brand-text { line-height: 1; }
.brand-text .eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 4px;
}
.brand-text .wordmark {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.masthead { text-align: center; font-family: var(--serif); }
.masthead .title { font-size: 44px; font-weight: 400; letter-spacing: -0.02em; line-height: 1; }
.masthead .title em { font-style: italic; color: var(--accent); }
.masthead .subtitle {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.corpus-status {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  text-align: right;
}
.corpus-status .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(74,107,58,.15);
}
.corpus-status.indexing .dot { background: var(--warn); box-shadow: 0 0 0 3px rgba(176,122,44,.15); }
.corpus-status .lines { line-height: 1.4; }
.corpus-status .lines b { color: var(--ink); font-weight: 600; }

.demo-banner {
  text-align: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--warn);
  padding: 6px 0 12px;
}
.demo-banner span {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 6px 18px;
}

/* ===== composer ===== */
.composer {
  background: var(--paper-2);
  border: 1px solid var(--ink);
  border-radius: 2px;
  padding: 28px 32px 24px;
  box-shadow: var(--shadow);
  margin-bottom: 40px;
}
.composer-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 12px;
}
.composer-input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
  resize: vertical;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--ink);
  padding: 0;
  min-height: 72px;
}
.composer-input::placeholder { color: var(--ink-mute); font-style: italic; }
.composer-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--rule);
  flex-wrap: wrap;
}
.control-group { display: flex; align-items: center; gap: 8px; }
.control-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-right: 8px;
}
.pill {
  border: 1px solid var(--rule);
  background: transparent;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: all .15s ease;
  display: inline-flex; align-items: center; gap: 6px;
}
.pill:hover:not([disabled]) { border-color: var(--ink); color: var(--ink); }
.pill.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.pill[disabled] { opacity: .45; cursor: not-allowed; }
.pill .pill-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: .6; }
.ask-btn {
  background: var(--accent);
  color: #FBF5E9;
  border: 0;
  padding: 10px 22px;
  border-radius: 2px;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .01em;
  transition: transform .1s ease, background .15s ease;
  display: inline-flex; align-items: center; gap: 8px;
}
.ask-btn:hover { background: #5C1717; }
.ask-btn:active { transform: translateY(1px); }
.ask-btn[disabled] { background: var(--ink-mute); cursor: wait; }
.ask-btn svg { width: 16px; height: 16px; }

/* ===== answer grid ===== */
.answer-shell {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

/* ===== answer ===== */
.answer { background: var(--paper); position: relative; }
.answer + .answer {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--rule);
}
.answer-meta {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 8px;
}
.answer-meta .model {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--accent);
}
.answer-meta .stats {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.answer h2.question-echo {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0 0 28px;
  color: var(--ink);
  max-width: 60ch;
}
.answer h2.question-echo::before {
  content: "“";
  font-size: 56px;
  line-height: 0;
  vertical-align: -0.35em;
  color: var(--accent-soft);
  margin-right: 6px;
  font-style: italic;
}
.section-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 32px 0 12px;
  display: flex; align-items: center; gap: 12px;
}
.section-eyebrow::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.exec-summary {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink);
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 20px;
  margin: 0;
}
.analysis p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 16px;
  max-width: 68ch;
}
.analysis p:last-child { margin-bottom: 0; }

.cite {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px; height: 18px;
  padding: 0 5px;
  margin: 0 1px 0 2px;
  border-radius: 3px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  vertical-align: 1px;
  cursor: pointer;
  transition: all .12s ease;
}
.cite:hover { background: var(--accent); color: #FBF5E9; border-color: var(--accent); }
.cite.active { background: var(--accent); color: #FBF5E9; border-color: var(--accent); }

.actions ol { list-style: none; counter-reset: action; padding: 0; margin: 0; }
.actions li {
  counter-increment: action;
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}
.actions li:last-child { border-bottom: 0; }
.actions li::before {
  content: counter(action, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  padding-top: 2px;
  letter-spacing: .1em;
}
.actions .title {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 4px;
}
.actions .rationale {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
}
.priority {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 2px;
  align-self: start;
  margin-top: 2px;
}
.priority.high   { background: #F0D6CC; color: #7A1F1F; }
.priority.medium { background: #F4E3B8; color: #6E521B; }
.priority.low    { background: #DCE2D2; color: #3F5A2B; }

.open-q {
  background: var(--paper-2);
  border: 1px dashed var(--rule);
  padding: 18px 22px;
  border-radius: 2px;
}
.open-q .q {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 4px;
}
.open-q .why { font-size: 13px; color: var(--ink-mute); }
.open-q + .open-q { margin-top: 14px; }

.warnings {
  margin-top: 20px;
}
.warning-item {
  background: rgba(176,122,44,.07);
  border-left: 2px solid var(--warn);
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.warning-item .kind {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--warn);
  margin-right: 8px;
}

.reask {
  margin-top: 40px;
  padding: 20px 22px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  border-radius: 2px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.reask-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-soft);
}
.reask-models { display: flex; gap: 6px; flex-wrap: wrap; }
.reask-models .pill { background: var(--paper); }

/* streaming state */
.answer.streaming .analysis p:last-child::after {
  content: "▌";
  animation: blink 1s steps(2) infinite;
  color: var(--accent);
}
@keyframes blink { 50% { opacity: 0; } }

/* ===== sources rail ===== */
.rail {
  position: sticky;
  top: 32px;
  align-self: start;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}
.rail-header {
  display: flex; align-items: baseline; justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
  margin-bottom: 16px;
  position: sticky; top: 0;
  background: var(--paper);
  z-index: 1;
}
.rail-title { font-family: var(--serif); font-size: 18px; font-weight: 500; }
.rail-count {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.source {
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  border-left: 3px solid var(--rule);
  border-radius: 2px;
  padding: 14px 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 64px;
  transition: box-shadow .25s ease, border-left-color .15s ease;
}
.source.cited { border-left-color: var(--accent); }
.source.highlight {
  box-shadow: 0 0 0 3px rgba(122,31,31,.25), 0 12px 32px -16px rgba(26,24,20,.18);
}
.source-meta {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 8px;
  gap: 10px;
}
.source-id {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent);
  background: var(--paper);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid var(--paper-edge);
}
.source-where {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-mute);
  text-align: right;
  line-height: 1.4;
}
.source-where b { color: var(--ink); font-weight: 500; }
.source-passage {
  font-family: var(--serif);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.source-corpus {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.verify-note {
  margin-top: 24px;
  padding: 12px 14px;
  background: rgba(74,107,58,.08);
  border-left: 2px solid var(--ok);
  font-size: 12px;
  color: var(--ink-soft);
  font-family: var(--mono);
  line-height: 1.5;
}
.verify-note b { color: var(--ok); }
.verify-note.has-warnings { background: rgba(176,122,44,.08); border-left-color: var(--warn); }
.verify-note.has-warnings b { color: var(--warn); }

/* error & loading states */
.error-banner {
  margin: 20px 0;
  padding: 14px 18px;
  background: #FAD9CC;
  border-left: 3px solid var(--accent);
  font-size: 14px;
  color: #4A0D0D;
  font-family: var(--sans);
}
.streaming-tokens {
  font-family: var(--serif);
  color: var(--ink-mute);
  font-size: 15px;
  line-height: 1.65;
  white-space: pre-wrap;
  padding: 16px;
  background: var(--paper-2);
  border-left: 2px solid var(--ink-mute);
}