:root {
  --bg: #fbf7ef;
  --card: #ffffff;
  --ink: #21160f;
  --muted: #75675d;
  --accent: #d97706;
  --green: #15803d;
  --red: #b91c1c;
  --warning: #b45309;
  --warning-bg: #fff7ed;
  --border: #eadfce;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
.shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0; }
.hero { display: grid; grid-template-columns: 1fr minmax(320px, 420px); gap: 24px; align-items: end; margin-bottom: 18px; }
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 6px; }
.eyebrow.small { font-size: 12px; margin-bottom: 3px; }
h1 { font-size: clamp(38px, 6vw, 64px); line-height: .95; margin: 0; letter-spacing: -0.05em; }
h2 { margin: 0; font-size: 28px; letter-spacing: -0.035em; }
h3 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.lede, .section-heading p { color: var(--muted); font-size: 17px; max-width: 700px; }
.auth-card, .card, .toolbar, .simulator-panel, .test-lab-panel { background: var(--card); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 10px 30px rgba(70, 45, 20, .05); }
.auth-card { padding: 16px; }
.auth-card label { display: block; font-weight: 700; margin-bottom: 8px; }
.auth-row { display: flex; gap: 8px; }
input, select, textarea { border: 1px solid var(--border); border-radius: 12px; padding: 11px 12px; font: inherit; color: var(--ink); background: #fff; }
textarea { resize: vertical; min-height: 96px; }
.auth-row input { flex: 1; }
button { border: 0; border-radius: 12px; padding: 11px 15px; background: var(--accent); color: white; font-weight: 800; cursor: pointer; }
button.secondary { background: #3b2a1f; }
button.danger { background: var(--red); }
button:disabled { opacity: .55; cursor: not-allowed; }
.remember-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; color: var(--muted); font-size: 13px; font-weight: 650; }
.auth-state { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
small { color: var(--muted); }
.toolbar { display: flex; align-items: end; gap: 12px; padding: 14px; margin-bottom: 24px; flex-wrap: wrap; }
.target-picker { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
select { min-width: min(520px, 80vw); font-weight: 600; }
#status-line { color: var(--muted); }
.auto-refresh { display: inline-flex; gap: 7px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 750; }
.health-summary { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; padding: 18px; margin: 0 0 20px; background: var(--card); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 10px 30px rgba(70, 45, 20, .05); }
.health-summary h2 { color: var(--red); }
.health-summary.healthy h2 { color: var(--green); }
.health-summary.warning h2 { color: var(--warning); }
.health-summary.degraded h2 { color: var(--red); }
.health-summary ul { margin: 0; color: var(--muted); }
.warning-panel { display: flex; gap: 10px; align-items: baseline; padding: 14px 16px; margin: 0 0 24px; border: 1px solid #fed7aa; border-radius: 16px; background: var(--warning-bg); color: var(--warning); }
.warning-panel[hidden] { display: none; }
.warning-panel strong { color: #9a3412; }
.section-block { margin-top: 28px; }
.section-heading { margin-bottom: 12px; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.grid.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { padding: 18px; min-height: 132px; }
.status-card .value { color: var(--green); }
.value { font-size: 38px; font-weight: 850; margin: 0 0 10px; letter-spacing: -0.035em; }
.mini-stats, .data-list { margin: 0; }
.mini-stats { display: flex; gap: 14px; }
.mini-stats div, .data-list div { display: flex; justify-content: space-between; gap: 18px; padding: 9px 0; border-top: 1px solid #f1e7d8; }
.mini-stats div:first-child, .data-list div:first-child { border-top: 0; }
dt { color: var(--muted); font-size: 14px; }
dd { margin: 0; font-weight: 800; text-align: right; overflow-wrap: anywhere; }
.data-card { min-height: 220px; }
.data-list dt { flex: 0 0 42%; }
.data-list dd { flex: 1; line-height: 1.35; }
.simulator-panel, .test-lab-panel { padding: 20px; }
.sim-form { display: grid; grid-template-columns: repeat(2, minmax(180px, 1fr)); gap: 12px; align-items: end; }
.sim-form label { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-weight: 750; }
.sim-form .checkbox { flex-direction: row; align-items: center; color: var(--ink); }
.test-lab-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.host-console-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 16px; }
.host-message-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: end; margin-top: 14px; }
.host-message-form[hidden] { display: none; }
.host-message-form label { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-weight: 750; }
.timeline-list { display: grid; gap: 10px; }
.timeline-item { padding: 12px; border: 1px solid #f1e7d8; border-radius: 14px; background: #fffaf3; }
.timeline-item.host { border-color: #fed7aa; }
.timeline-item.guest { border-color: #bbf7d0; }
.timeline-meta { color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }
.timeline-summary { margin-top: 4px; font-weight: 800; }
.timeline-payload { margin-top: 5px; color: var(--muted); overflow-wrap: anywhere; }
.timeline-item button { margin-top: 8px; }
.warning-copy { color: var(--warning); font-weight: 700; }
.result-box { margin: 16px 0 0; padding: 14px; border-radius: 14px; background: #21160f; color: #ffedd5; overflow: auto; min-height: 76px; line-height: 1.45; }
.history-block { margin-top: 18px; }
code { background: #f3eadc; padding: 1px 5px; border-radius: 5px; }
.text-link { color: var(--accent); font-weight: 850; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.developer-shell .hero { align-items: start; }
.developer-warning { margin-bottom: 24px; }
.developer-toolbar { margin-top: 14px; }
.lab-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 14px; }
.developer-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; align-items: end; }
.developer-form label, .full-span { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-weight: 750; }
.full-span { grid-column: 1 / -1; margin-bottom: 12px; }
.translation-result-card { min-height: 260px; padding: 14px; border: 1px solid #f1e7d8; border-radius: 14px; background: #fffaf3; color: var(--muted); overflow-wrap: anywhere; }
.translation-output { color: var(--ink); font-size: 20px; line-height: 1.45; white-space: pre-wrap; }
.copy-row { margin-top: 12px; }
.compact-list div { padding: 6px 0; }
.comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.comparison-card { padding: 14px; border: 1px solid #f1e7d8; border-radius: 14px; background: #fffaf3; }
.comparison-card.error { border-color: #fecaca; background: #fef2f2; color: var(--red); }
.model-chip-list { display: flex; flex-wrap: wrap; gap: 8px; }
@media (max-width: 900px) {
  .lab-grid, .developer-form, .comparison-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .grid, .grid.two-col, .sim-form, .host-console-grid, .host-message-form, .lab-grid, .developer-form, .comparison-grid { grid-template-columns: 1fr; }
  .auth-row, .health-summary { flex-direction: column; }
}