/* FieldTech Assist — styled in the agora-agency.com design language.
   Tokens lifted from the published site: warm cream ground, warm ink,
   brick accent, sage dotted bands; EB Garamond italic display + Inter.
   Radius is near-square (2px) and surfaces are flat — no shadows. */

:root {
  --cream: hsl(41 47% 90%);
  --cream-deep: hsl(41 30% 82%);
  --ink: hsl(33 20% 10%);
  --ink-soft: hsl(33 16% 28%);
  --warm-gray: hsl(33 13% 43%);
  --line: hsl(33 13% 43% / 0.45);
  --line-soft: hsl(33 13% 43% / 0.22);
  --brick: hsl(6 51% 41%);
  --brick-deep: hsl(6 51% 33%);
  --sage: hsl(100 14% 67%);
  --sage-dot: hsl(100 12% 49%);
  --serif: "EB Garamond", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ---------- masthead ---------- */
.masthead {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  max-width: 1100px; width: 100%; margin: 0 auto;
  padding: 2rem 2.5rem 1.6rem;
  border-bottom: 1px solid var(--line-soft);
}
.brand-stamp {
  display: inline-block;
  font-family: var(--sans); font-weight: 500; font-size: 12px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--brick);
}
.brand-sub {
  display: block; margin-top: 0.9rem;
  font-family: var(--serif); font-style: italic;
  font-size: 1.7rem; line-height: 1.15; letter-spacing: -0.01em;
  color: var(--ink);
}
.agency { color: var(--warm-gray); font-size: 0.85rem; text-decoration: none; }
.agency strong { color: var(--brick); font-weight: 500; }
.agency:hover { color: var(--ink); }

/* ---------- ticket board ---------- */
.view { flex: 1; width: 100%; max-width: 1100px; margin: 0 auto; padding: 2.2rem 2.5rem 4rem; }
.lede { max-width: 46rem; font-size: 1.1rem; line-height: 1.6; color: var(--ink-soft); margin: 0.2rem 0 2.4rem; }

.ticket-rail { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2.2rem; }

.plate {
  position: relative;
  border-top: 1px solid var(--brick);
  padding: 1.6rem 0 0;
  display: flex; flex-direction: column; gap: 0.9rem;
  background: transparent;
}
.plate .rivet-b { display: none; }

.plate-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem;
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--brick);
}
.plate-doc { color: var(--warm-gray); }
.plate-machine {
  font-family: var(--serif); font-weight: 600; font-style: italic;
  font-size: 1.65rem; line-height: 1.15; margin: 0; letter-spacing: -0.01em;
}
.wo-box {
  border: 1px solid var(--line-soft);
  background: hsl(41 38% 87%);
  border-radius: 2px;
  padding: 0.9rem 1rem;
}
.wo-num {
  font-family: var(--sans); font-weight: 500; font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--brick);
}
.wo-title { font-weight: 600; font-size: 0.98rem; margin: 0.4rem 0 0.3rem; }
.wo-symptom { font-size: 0.9rem; color: var(--ink-soft); line-height: 1.55; margin: 0; }
.wo-meta {
  display: flex; gap: 1.1rem; margin-top: 0.65rem; flex-wrap: wrap;
  font-family: var(--sans); font-size: 10.5px; font-weight: 500;
  color: var(--warm-gray); text-transform: uppercase; letter-spacing: 0.14em;
}

.plate-open {
  margin-top: auto; align-self: flex-start;
  font-family: var(--sans); font-weight: 500; font-size: 0.95rem;
  background: var(--brick); color: var(--cream);
  border: 1px solid var(--brick); border-radius: 2px;
  padding: 0.7rem 1.5rem; cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.plate-open:hover, .plate-open:focus-visible { background: transparent; color: var(--brick); }
.plate-src { font-size: 0.8rem; color: var(--warm-gray); line-height: 1.5; }
.plate-src a { color: var(--brick); text-decoration: none; }
.plate-src a:hover { text-decoration: underline; }

.provenance {
  margin-top: 3.2rem; padding-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--sans); font-size: 0.8rem; color: var(--warm-gray);
  letter-spacing: 0.02em;
}

/* ---------- chat ---------- */
.backlink {
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  background: none; border: none; color: var(--brick);
  cursor: pointer; padding: 0 0 1.1rem;
}
.backlink:hover { text-decoration: underline; }

.wo-banner {
  display: flex; justify-content: space-between; align-items: baseline; gap: 0.8rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--brick);
  padding: 0 0 0.9rem; margin-bottom: 1.6rem;
}
.wo-banner .machine {
  font-family: var(--serif); font-style: italic; font-weight: 600;
  font-size: 1.45rem; letter-spacing: -0.01em;
}
.wo-banner .docref { font-family: var(--sans); font-size: 0.8rem; color: var(--warm-gray); }
.wo-banner .docref a { color: var(--brick); text-decoration: none; }
.wo-banner .docref a:hover { text-decoration: underline; }

.thread { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.1rem; }

.msg {
  max-width: 46rem; padding: 1rem 1.2rem; line-height: 1.62; font-size: 0.98rem;
  border-radius: 2px; white-space: pre-wrap;
}
.msg.user {
  align-self: flex-end;
  background: var(--cream-deep);
  border: 1px solid var(--line-soft);
  font-weight: 500;
}
.msg.assistant {
  align-self: flex-start;
  background: transparent;
  border-left: 2px solid var(--brick);
  padding-left: 1.4rem;
}
.msg.assistant.error { border-left-color: var(--warm-gray); color: var(--ink-soft); font-style: italic; }

.msg .cite {
  display: inline-block; font-family: var(--sans); font-size: 0.78em; font-weight: 500;
  color: var(--brick); background: transparent;
  border: 1px solid var(--brick); border-radius: 2px;
  padding: 0 0.4em; margin: 0 0.15em; cursor: pointer; text-decoration: none;
  letter-spacing: 0.03em;
  transition: background 0.12s, color 0.12s;
}
.msg .cite:hover { background: var(--brick); color: var(--cream); }

.excerpt {
  align-self: flex-start; max-width: 46rem; width: 100%;
  border: 1px solid var(--line-soft); border-left: 2px solid var(--brick);
  background: hsl(41 38% 87%); border-radius: 2px;
  padding: 0.9rem 1.1rem;
}
.excerpt-head {
  display: flex; justify-content: space-between; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--warm-gray);
  margin-bottom: 0.55rem;
}
.excerpt-head a { color: var(--brick); font-weight: 500; text-decoration: none; }
.excerpt-head a:hover { text-decoration: underline; }
.excerpt pre {
  margin: 0; white-space: pre-wrap; font-family: var(--mono); font-size: 0.74rem;
  line-height: 1.55; color: var(--ink-soft); max-height: 14rem; overflow-y: auto;
}
.excerpt-close {
  background: none; border: none; font-family: var(--sans);
  color: var(--warm-gray); cursor: pointer; font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.excerpt-close:hover { color: var(--ink); }

.notecard {
  align-self: flex-start; max-width: 46rem;
  background-color: var(--sage);
  background-image: radial-gradient(var(--sage-dot) 1px, transparent 1.2px);
  background-size: 18px 18px;
  border-radius: 2px;
  padding: 1rem 1.2rem; font-size: 0.92rem; line-height: 1.55; color: var(--ink);
}
.notecard .nc-label {
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink); opacity: 0.75;
  display: block; margin-bottom: 0.4rem;
}

.pitch {
  align-self: stretch; max-width: 46rem;
  border-top: 1px solid var(--brick);
  padding: 1.4rem 0 0.6rem;
}
.pitch h3 {
  margin: 0 0 0.5rem;
  font-family: var(--serif); font-style: italic; font-weight: 600;
  font-size: 1.7rem; letter-spacing: -0.01em; line-height: 1.15;
}
.pitch p { margin: 0 0 1.1rem; font-size: 0.95rem; line-height: 1.6; color: var(--ink-soft); }
.pitch .cta-row { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.cta {
  font-family: var(--sans); font-size: 0.92rem; font-weight: 500;
  padding: 0.65rem 1.3rem; text-decoration: none; cursor: pointer;
  border-radius: 2px; transition: background 0.15s, color 0.15s;
}
.cta.primary { background: var(--brick); color: var(--cream); border: 1px solid var(--brick); }
.cta.primary:hover { background: transparent; color: var(--brick); }
.cta.secondary { background: none; color: var(--brick); border: 1px solid var(--brick); }
.cta.secondary:hover { background: var(--brick); color: var(--cream); }

.chips { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 0.5rem 0 1.1rem; }
.chip {
  font-family: var(--sans); font-size: 0.82rem; font-weight: 400;
  background: transparent; border: 1px solid var(--line);
  color: var(--ink-soft); border-radius: 2px;
  padding: 0.5rem 0.95rem; cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
}
.chip:hover { border-color: var(--brick); color: var(--brick); }

.askbar {
  display: flex; gap: 0.7rem; position: sticky; bottom: 0;
  background: linear-gradient(transparent, var(--cream) 30%);
  padding: 0.9rem 0 1.1rem;
}
.askbar input {
  flex: 1; font-family: var(--sans); font-size: 1rem; color: var(--ink);
  background: hsl(41 38% 87%);
  border: 1px solid var(--line); border-radius: 2px;
  padding: 0.8rem 1rem;
}
.askbar input::placeholder { color: var(--warm-gray); }
.askbar input:focus { outline: none; border-color: var(--brick); }
.askbar button {
  font-family: var(--sans); font-weight: 500; font-size: 0.92rem;
  background: var(--brick); color: var(--cream);
  border: 1px solid var(--brick); border-radius: 2px;
  padding: 0 1.6rem; cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.askbar button:hover:not(:disabled) { background: var(--brick-deep); border-color: var(--brick-deep); }
.askbar button:disabled { opacity: 0.45; cursor: wait; }

.thinking {
  font-family: var(--sans); font-size: 0.82rem; font-style: italic;
  color: var(--warm-gray); align-self: flex-start; padding-left: 1.4rem;
}
.thinking::after { content: "…"; animation: dots 1.2s steps(4, end) infinite; }
@keyframes dots { 0% { content: ""; } 25% { content: "."; } 50% { content: ".."; } 75% { content: "…"; } }

.colophon {
  max-width: 1100px; width: 100%; margin: 0 auto;
  padding: 1.3rem 2.5rem 1.8rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--sans); font-size: 0.74rem; color: var(--warm-gray);
  letter-spacing: 0.02em;
}

/* ---------- mobile ---------- */
@media (max-width: 680px) {
  .masthead { padding: 1.3rem 1.2rem 1rem; }
  .brand-sub { font-size: 1.35rem; }
  .view { padding: 1.2rem 1.2rem 2.2rem; }
  .ticket-rail { grid-template-columns: 1fr; gap: 1.6rem; }
  .msg, .excerpt, .notecard, .pitch { max-width: 100%; }
  .msg.assistant { padding-left: 1rem; }
  .askbar { padding-bottom: max(0.9rem, env(safe-area-inset-bottom)); }
  .askbar button { padding: 0 1.1rem; }
  .wo-banner { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
}