/* AVIACO test bench — palette Notion-pro noir & blanc, accent bleu logo. */
:root {
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --bg-hover: #f1f1ef;
  --bg-warn: #fdf6e3;
  --border: #e9e9e7;
  --border-strong: #d3d1cb;
  --text: #2f2f2f;
  --text-strong: #1a1a1a;
  --text-soft: #787774;
  --text-faint: #9b9a97;
  --accent: #2942dc;
  --error: #c93f3f;
  --error-soft: #fbeeec;
  --success: #4d8051;
  --success-soft: #edf3eb;
  --warning: #b88a3a;
  --warning-soft: #fbf3df;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 15.5px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ===== Header ===== */
header {
  background: var(--bg);
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.brand-logo-img {
  height: 32px;
  width: auto;
  display: block;
}
.brand-name {
  font-weight: 800;
  letter-spacing: 1px;
  font-size: 1.15rem;
  color: var(--accent);
  display: inline-block;
}
.brand-sub {
  font-size: 0.75rem;
  color: var(--text-soft);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 500;
  margin-left: 2px;
}
.watermark {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.7rem;
  background: var(--bg-soft);
  color: var(--text-soft);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  max-width: 50%;
  text-align: right;
  line-height: 1.4;
}

/* ===== Layout ===== */
main {
  max-width: 820px;
  margin: 40px auto;
  padding: 0 32px;
}

/* ===== No-token banner ===== */
.no-token-banner {
  background: var(--error-soft);
  border: 1px solid rgba(201, 63, 63, 0.25);
  border-left: 3px solid var(--error);
  border-radius: 6px;
  padding: 18px 22px;
  margin: 24px 0;
  color: var(--text);
}
.no-token-banner h2 {
  margin: 0 0 8px 0;
  color: var(--error);
  font-size: 1rem;
  font-weight: 600;
}
.no-token-banner p { margin: 4px 0; font-size: 0.9rem; }
.no-token-banner code {
  display: block;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.78rem;
  margin-top: 8px;
  word-break: break-all;
  color: var(--text);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ===== Hero ===== */
.hero {
  margin-bottom: 36px;
}
.hero h1 {
  font-size: 1.85rem;
  margin: 0 0 12px 0;
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.5px;
}
.hero p {
  color: var(--text-soft);
  margin: 0;
  max-width: 680px;
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ===== Examples / chips ===== */
.examples {
  margin-bottom: 30px;
}
.examples h2 {
  margin: 0 0 12px 0;
  font-size: 0.8rem;
  color: var(--text-soft);
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.chip-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 8px;
}
.chip {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.chip:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}
.chip.muted {
  border-style: dashed;
  color: var(--text-soft);
}
.chip.muted:hover {
  background: var(--error-soft);
  border-color: rgba(201, 63, 63, 0.4);
  border-style: solid;
  color: var(--error);
}

.icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  stroke: currentColor;
  color: var(--text-soft);
}
.chip:hover .icon { color: var(--text-strong); }
.chip.muted .icon { color: var(--text-faint); }
.chip.muted:hover .icon { color: var(--error); }

.icon-btn { width: 16px; height: 16px; }
.icon-section { width: 18px; height: 18px; color: var(--text-soft); vertical-align: -4px; margin-right: 8px; }

/* ===== Form ===== */
form#ask-form { margin-bottom: 16px; }
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
textarea:focus {
  outline: none;
  border-color: var(--text-strong);
  box-shadow: 0 0 0 3px rgba(47, 47, 47, 0.08);
}
textarea::placeholder {
  color: var(--text-faint);
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

#submit-btn {
  background: var(--text-strong);
  color: white;
  border: 1px solid var(--text-strong);
  padding: 10px 22px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.12s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
#submit-btn:hover:not(:disabled) { background: #000; }
#submit-btn:disabled { opacity: 0.5; cursor: wait; }

.char-count {
  font-size: 0.78rem;
  color: var(--text-faint);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ===== Status ===== */
#status {
  margin: 14px 0;
  min-height: 1.5em;
  font-size: 0.9rem;
}
#status.error {
  color: var(--error);
  font-weight: 500;
  padding: 10px 14px;
  background: var(--error-soft);
  border-left: 3px solid var(--error);
  border-radius: 4px;
}
#status.info { color: var(--text-soft); }
#status.ok { color: var(--success); font-weight: 500; }

/* ===== Thinking ===== */
.thinking {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 14px 18px;
  margin: 16px 0;
  border-radius: 6px;
}
.thinking-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 500;
}
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--text-strong);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Answer ===== */
.answer {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 22px 26px;
  margin: 22px 0;
  border-radius: 8px;
}
.answer-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.answer-head h3 {
  margin: 0;
  color: var(--text-strong);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
#answer-text {
  font-size: 0.97rem;
  color: var(--text);
  line-height: 1.7;
}
.answer-notice {
  background: var(--warning-soft);
  border: 1px solid rgba(184, 138, 58, 0.3);
  border-left: 3px solid var(--warning);
  border-radius: 4px;
  padding: 10px 14px;
  margin: 0 0 14px 0;
  font-size: 0.88rem;
  color: var(--text);
  font-style: italic;
}
.answer-body {
  white-space: pre-wrap;
  word-wrap: break-word;
}
.answer-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.badge, .tag {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 0.3px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.badge.PASS { background: var(--success-soft); color: var(--success); }
.badge.REFUSE { background: var(--warning-soft); color: var(--warning); }
.badge.BLOCK_HALLUCINATION { background: var(--error-soft); color: var(--error); }
.badge.MAX_STEPS { background: var(--bg-soft); color: var(--text-soft); }
.tag { background: var(--bg-soft); color: var(--text-soft); border: 1px solid var(--border); }

/* ===== Sources ===== */
.sources {
  margin: 22px 0;
  padding: 22px 26px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.sources h3 {
  margin: 0 0 14px 0;
  color: var(--text-strong);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
#source-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
#source-list li {
  padding: 9px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  word-break: break-all;
  color: var(--text);
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 30px 24px 36px 24px;
  font-size: 0.78rem;
  color: var(--text-soft);
  border-top: 1px solid var(--border);
  margin-top: 48px;
  background: var(--bg);
}
footer p { margin: 4px 0; }
.footer-expiry strong { color: var(--text); font-weight: 600; }

/* ===== Conversation thread (chat layout) ===== */
.conversation {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 24px 0;
}
.msg {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.msg-user {
  justify-content: flex-end;
}
.msg-user .msg-bubble {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  max-width: 80%;
  font-size: 0.95rem;
  color: var(--text);
  white-space: pre-wrap;
}
.msg-assistant {
  align-items: flex-start;
}
.msg-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--text-strong);
  color: white;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: 2px;
}
.msg-avatar-error {
  background: var(--error);
}
.msg-body {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.65;
}
.thinking-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-soft);
  font-size: 0.9rem;
}
.msg-meta {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.badge-PASS { background: var(--success-soft); color: var(--success); }
.badge-REFUSE { background: var(--warning-soft); color: var(--warning); }
.badge-BLOCK_HALLUCINATION { background: var(--error-soft); color: var(--error); }
.badge-MAX_STEPS { background: var(--bg-soft); color: var(--text-soft); }

.msg-sources {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.msg-sources-head {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-soft);
  font-weight: 500;
  margin-bottom: 8px;
}
.msg-sources ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.dmc-pill {
  display: inline-block;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  color: var(--text);
}

/* ===== Markdown rendering ===== */
.markdown { font-size: 0.95rem; line-height: 1.7; }
.markdown > *:first-child { margin-top: 0; }
.markdown > *:last-child { margin-bottom: 0; }
.markdown p { margin: 0.6em 0; }
.markdown .md-h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.4em 0 0.5em 0;
  color: var(--text-strong);
  letter-spacing: -0.2px;
}
.markdown .md-h3 {
  font-size: 0.98rem;
  font-weight: 600;
  margin: 1.1em 0 0.4em 0;
  color: var(--text-strong);
}
.markdown strong { font-weight: 600; color: var(--text-strong); }
.markdown em { font-style: italic; }
.markdown a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.markdown .md-ul {
  margin: 0.6em 0;
  padding-left: 22px;
}
.markdown .md-ul li { margin: 0.25em 0; }
.markdown .md-code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.84rem;
  color: var(--text);
  word-break: break-word;
}
.markdown .md-pre {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  margin: 0.8em 0;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.5;
}
.markdown .md-pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--text);
}

.answer-notice {
  background: var(--warning-soft);
  border: 1px solid rgba(184, 138, 58, 0.3);
  border-left: 3px solid var(--warning);
  border-radius: 4px;
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 0.88rem;
  color: var(--text);
}
.answer-notice-error {
  background: var(--error-soft);
  border-color: rgba(201, 63, 63, 0.3);
  border-left-color: var(--error);
}

.watermark-error {
  background: var(--error-soft) !important;
  color: var(--error) !important;
  border-color: rgba(201, 63, 63, 0.3) !important;
}

/* ===== Responsive ===== */
@media (max-width: 700px) {
  header {
    padding: 14px 20px;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
  .watermark { max-width: 100%; text-align: left; }
  main { padding: 0 20px; margin: 24px auto; }
  .hero h1 { font-size: 1.4rem; }
  .answer, .sources { padding: 18px 20px; }
  .answer-head { flex-direction: column; align-items: stretch; }
  .brand-logo { height: 28px; }
}