/* Realty BLU Ledger Assistant — bank-statement ledger identity.
   Palette matched to Realty BLU's letterhead: navy + grey, cool paper
   ground, accounting-red negatives. Figures always tabular monospace. */

:root {
  --paper:    #eef0f3;   /* cool grey — page ground */
  --bond:     #fcfdfe;   /* bond white — cards, answers */
  --bar:      #e4e8ef;   /* the ledger bar — table striping, hovers */
  --ink:      #1c222b;
  --muted:    #5d6774;
  --hairline: #c7cdd7;
  --blu:      #1b3a63;   /* Realty BLU navy — actions, links, user accent */
  --blu-dk:   #12294a;
  --red:      #a63d2f;   /* accounting red — negatives, warnings */
  --amber:    #8a6d1d;   /* stale-data warning */
  --mono: "Cascadia Mono", Consolas, "SF Mono", "Roboto Mono", monospace;
  --sans: "Segoe UI", Seravek, "Gill Sans Nova", Ubuntu, Calibri, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 14px/1.5 var(--sans);
  color: var(--ink);
  background: var(--paper);
}
.hidden { display: none !important; }
button { font: inherit; cursor: pointer; }
textarea, input { font: inherit; color: inherit; }

/* ---- login ---- */
.login {
  height: 100%;
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(180deg, transparent 0 26px, rgba(27,58,99,.05) 26px 52px),
    var(--paper);
}
.login-card {
  width: min(360px, 90vw);
  background: var(--bond);
  border: 1px solid var(--hairline);
  border-top: 3px solid var(--blu);
  padding: 28px 30px 26px;
  box-shadow: 0 2px 12px rgba(28,34,43,.07);
}
.login-brand { font: 700 11px/1 var(--mono); letter-spacing: .35em; color: var(--blu); }
.login-card h1 { margin: 10px 0 2px; font-size: 22px; font-weight: 650; }
.login-sub { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.login-card label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.login-card input {
  width: 100%; padding: 8px 10px; margin-bottom: 12px;
  border: 1px solid var(--hairline); border-radius: 3px; background: #fff;
  font-family: var(--mono); letter-spacing: .12em;
}
.login-card button {
  width: 100%; padding: 9px 0; border: 0; border-radius: 3px;
  background: var(--blu); color: #fff; font-weight: 600;
}
.login-card button:hover { background: var(--blu-dk); }
.login-error { color: var(--red); font-size: 13px; margin: 10px 0 0; }

/* ---- app frame ---- */
.app { height: 100%; display: flex; }

.rail {
  width: 252px; flex: none;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--hairline);
  background: var(--paper);
}
.rail-head { padding: 14px 14px 10px; }
.brand { font: 700 11px/1 var(--mono); letter-spacing: .35em; color: var(--blu); margin-bottom: 12px; }
.new-chat {
  width: 100%; text-align: left; padding: 7px 10px;
  background: var(--bond); border: 1px solid var(--hairline); border-radius: 3px;
  color: var(--blu-dk); font-weight: 600;
}
.new-chat:hover { border-color: var(--blu); }
.conversations { flex: 1; overflow-y: auto; padding: 4px 8px; }
.conv {
  display: block; width: 100%; text-align: left;
  padding: 7px 9px; margin: 2px 0; border: 0; border-radius: 3px;
  background: transparent; color: var(--ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-size: 13px;
}
.conv:hover { background: var(--bar); }
.conv.active { background: var(--bar); box-shadow: inset 2px 0 0 var(--blu); }
.rail-foot { padding: 10px 14px 14px; border-top: 1px solid var(--hairline); }
.sync-line { display: flex; align-items: center; gap: 7px; font: 11px/1.4 var(--mono); color: var(--muted); }
.sync-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blu); flex: none; }
.sync-dot.stale { background: var(--amber); }
.sync-dot.err { background: var(--red); }
.refresh-btn {
  margin-top: 8px; width: 100%; padding: 5px 0;
  background: transparent; border: 1px solid var(--hairline); border-radius: 3px;
  color: var(--muted); font-size: 12px;
}
.refresh-btn:hover:not(:disabled) { color: var(--blu-dk); border-color: var(--blu); }
.refresh-btn:disabled { opacity: .55; cursor: default; }

/* ---- thread ---- */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.thread { flex: 1; overflow-y: auto; padding: 26px 0 12px; }
.msg { max-width: 860px; margin: 0 auto 18px; padding: 0 28px; }

.msg.user .bubble {
  border-left: 3px solid var(--blu);
  background: var(--bar);
  padding: 8px 14px;
  border-radius: 0 3px 3px 0;
  font-weight: 500;
  white-space: pre-wrap;
}

.msg.assistant .bubble {
  background: var(--bond);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 14px 18px;
  box-shadow: 0 1px 3px rgba(28,34,43,.05);
}
.msg.event {
  text-align: center;
}
.msg.event .bubble {
  display: inline-block; font: 12px/1.5 var(--mono); color: var(--muted);
  border-bottom: 1px solid var(--hairline); padding: 2px 6px;
}

/* answer content */
.bubble p { margin: 0 0 .65em; }
.bubble p:last-child { margin-bottom: 0; }
.bubble ul, .bubble ol { margin: .3em 0 .7em; padding-left: 1.4em; }
.bubble li { margin: .15em 0; }
.bubble code { font-family: var(--mono); font-size: .92em; background: var(--bar); padding: 0 3px; border-radius: 2px; }
.bubble pre { background: var(--bar); padding: 10px 12px; overflow-x: auto; border-radius: 3px; }
.bubble pre code { background: none; padding: 0; }

/* the ledger table — greenbar striping, ruled, tabular figures */
.tablewrap { overflow-x: auto; margin: .6em 0 .8em; border: 1px solid var(--hairline); border-radius: 3px; }
.bubble table { border-collapse: collapse; width: 100%; font-size: 13px; }
.bubble th {
  font: 600 11px/1.4 var(--mono); letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted); text-align: left;
  padding: 7px 12px; border-bottom: 2px solid var(--blu);
  background: var(--bond); white-space: nowrap;
}
.bubble td { padding: 6px 12px; border-bottom: 1px solid #e5e8ee; vertical-align: top; }
.bubble tbody tr:nth-child(even) { background: var(--bar); }   /* the ledger bar */
.bubble tr:last-child td { border-bottom: 0; }
.bubble td.num, .bubble th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bubble td.neg { color: var(--red); }

/* citations — quiet monospace footnotes */
.bubble p.cite { font: 11.5px/1.5 var(--mono); color: var(--muted); margin-top: .4em; }

/* thinking panel */
.thinking { margin: 0 0 8px; }
.thinking summary {
  cursor: pointer; font: 11px/1.6 var(--mono); color: var(--muted);
  letter-spacing: .05em; user-select: none;
}
.thinking[open] summary { color: var(--blu-dk); }
.thinking .thought {
  font: 12px/1.55 var(--mono); color: var(--muted);
  border-left: 2px solid var(--hairline); padding: 4px 0 4px 12px; margin: 6px 0 4px;
  white-space: pre-wrap; max-height: 240px; overflow-y: auto;
}

/* tool activity — the teletype status line */
.activity {
  font: 12px/1.7 var(--mono); color: var(--blu-dk);
  padding: 2px 0 8px;
}
.activity .tick { display: block; }
.activity .tick.live::after { content: "▌"; animation: caret 1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.activity .tick.done { color: var(--muted); }
.activity .tick.done::before { content: "✓ "; color: var(--blu); }

/* confirmation card — the deposit-slip */
.action-card {
  max-width: 860px; margin: 0 auto 18px; padding: 0 28px;
}
.action-card .slip {
  background: var(--bond);
  border: 1px solid var(--blu);
  border-radius: 3px;
  overflow: hidden;
}
.slip-head {
  background: var(--blu); color: #fff;
  font: 600 11px/1 var(--mono); letter-spacing: .18em;
  padding: 7px 14px;
}
.slip-body { padding: 12px 16px; }
.slip-row { display: flex; gap: 12px; padding: 3px 0; font-size: 13.5px; }
.slip-row dt { flex: none; width: 88px; color: var(--muted); font: 11px/1.9 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.slip-row dd { margin: 0; font-weight: 500; }
.slip-actions { display: flex; gap: 10px; padding: 12px 16px 14px; border-top: 1px dashed var(--hairline); }
.slip-actions .confirm {
  padding: 7px 22px; border: 0; border-radius: 3px;
  background: var(--blu); color: #fff; font-weight: 600;
}
.slip-actions .confirm:hover { background: var(--blu-dk); }
.slip-actions .cancel {
  padding: 7px 18px; border: 1px solid var(--hairline); border-radius: 3px;
  background: transparent; color: var(--muted);
}
.slip-actions .cancel:hover { color: var(--red); border-color: var(--red); }
.slip-expiry { margin-left: auto; align-self: center; font: 11px/1 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.slip-expiry.expired { color: var(--red); }
.slip-actions button:disabled { opacity: .45; cursor: default; }

/* composer */
.composer {
  max-width: 860px; width: 100%; margin: 0 auto; padding: 10px 28px 18px;
  display: flex; gap: 10px; align-items: flex-end;
}
.composer textarea {
  flex: 1; resize: none; max-height: 160px;
  padding: 10px 12px; border: 1px solid var(--hairline); border-radius: 3px;
  background: var(--bond); line-height: 1.45;
}
.composer textarea:focus { outline: 2px solid var(--blu); outline-offset: -1px; border-color: transparent; }
.composer button {
  flex: none; padding: 10px 22px; border: 0; border-radius: 3px;
  background: var(--blu); color: #fff; font-weight: 600;
}
.composer button:hover:not(:disabled) { background: var(--blu-dk); }
.composer button:disabled { opacity: .5; cursor: default; }

/* usage footnote under an answer */
.usage-note { font: 10.5px/1.6 var(--mono); color: var(--muted); margin-top: 8px; opacity: .8; }

.error-note { color: var(--red); font-size: 13px; }

/* focus visibility & reduced motion */
:focus-visible { outline: 2px solid var(--blu); outline-offset: 1px; }
@media (prefers-reduced-motion: reduce) {
  .activity .tick.live::after { animation: none; }
}

@media (max-width: 720px) {
  .rail { display: none; }
  .msg, .composer, .action-card { padding-left: 14px; padding-right: 14px; }
}