:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --fg: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --active: #6d28d9;
  --active-bg: #f5f3ff;
  --ok: #15803d;
  --ok-bg: #f0fdf4;
  --warn: #b45309;
  --warn-bg: #fffbeb;
  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --radius: 10px;
  --font: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 var(--font); }
button, input, select { font: inherit; }
:focus-visible { outline: 3px solid var(--active); outline-offset: 2px; }

.icon { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon.lg { width: 28px; height: 28px; }

/* Composer */
.composer { padding: 16px 24px; border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 8px; }
#composer { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px 20px; }
.brand { font-size: 1.375rem; margin: 0; padding-top: 24px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: .875rem;
  font-weight: 600; color: var(--muted); border: 0; padding: 0; margin: 0; min-width: 0; }
.field legend { padding: 0; margin-bottom: 4px; }
.field input, .field select { color: var(--fg); font-weight: 400; padding: 6px 10px;
  min-height: 40px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); }
#topic { width: 240px; }
#max-steps { width: 88px; }
.submit { padding-top: 24px; }
.field-error { color: var(--danger); font-size: .8125rem; font-weight: 500; min-height: 1.25em; max-width: 260px; }

.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; margin: 0; padding: 0;
  min-height: 40px; align-items: center; max-width: 520px; }
.chip { display: inline-flex; align-items: center; gap: 2px; padding: 2px 2px 2px 10px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--surface);
  color: var(--fg); font-weight: 500; font-size: .8125rem; }
.chip button { border: 0; background: none; cursor: pointer; color: var(--muted);
  width: 28px; height: 28px; border-radius: 999px; }
.chip button:hover { background: var(--border); color: var(--fg); }
.add-steps { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }

.btn { cursor: pointer; border: 1px solid var(--border); background: var(--bg); color: var(--fg);
  border-radius: 6px; padding: 6px 14px; min-height: 40px; font-weight: 600; font-size: .875rem;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background-color .15s ease-out; }
.btn:hover { background: var(--surface); }
.btn.small { min-height: 32px; padding: 4px 10px; font-size: .8125rem; }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); min-width: 128px; }
.btn.primary:hover { background: #1e293b; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn[aria-busy="true"]::before { content: ""; width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.presets { display: flex; align-items: center; gap: 8px; font-size: .875rem; color: var(--muted); }

/* Pipeline */
main { padding: 24px; display: flex; flex-direction: column; gap: 24px; }
.pipeline { border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: var(--surface); }
.team { display: grid; grid-template-columns: repeat(5, 1fr); gap: 32px; }
.card { position: relative; display: flex; flex-direction: column; align-items: center; gap: 4px;
  text-align: center; padding: 16px 12px; background: var(--bg); border: 2px solid var(--border);
  border-radius: var(--radius); transition: border-color .25s ease-out, background-color .25s ease-out; }
.card strong { font-size: 1.0625rem; }
.card.supervisor { border-style: dashed; border-color: var(--fg); }
.agent-step { font-size: .75rem; letter-spacing: .05em; color: var(--muted); }
.agent-status { display: inline-flex; align-items: center; gap: 4px; min-height: 1.5em;
  font-size: .875rem; color: var(--muted); }
.connector { position: absolute; right: 100%; top: 50%; width: 32px; height: 3px;
  background: var(--border); transition: background-color .25s ease-out; }
.card[data-state="active"] { border-color: var(--active); background: var(--active-bg); }
.card[data-state="active"] .agent-status { color: var(--active); font-weight: 600; }
.card[data-state="active"] .connector { background: var(--active); }
.card[data-state="done"] .agent-status { color: var(--ok); font-weight: 600; }
.card[data-state="done"] .connector { background: var(--ok); }
.card[data-state="error"] { border-color: var(--danger); background: var(--danger-bg); }
.card[data-state="error"] .agent-status { color: var(--danger); font-weight: 600; }
.card[data-state="error"] .connector { background: var(--danger); }

.track { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 20px 0 0; padding: 0; }
.track li { display: inline-flex; align-items: center; gap: 4px; height: 32px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--bg); color: var(--muted);
  font-size: .8125rem; font-weight: 600; }
.track li[data-state="active"] { border: 2px solid var(--active); color: var(--active); }
.track li[data-state="done"] { border-color: var(--ok); color: var(--ok); }
.track li[data-state="error"] { border: 2px solid var(--danger); color: var(--danger); }
.track li[data-state="skipped"] { text-decoration: line-through;
  background: repeating-linear-gradient(45deg, var(--surface) 0 6px, var(--border) 6px 8px); }
.track-note { margin: 8px 0 0; min-height: 1.5em; font-size: .875rem; color: var(--warn); font-weight: 600; }

/* Panneaux */
.panels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.panel { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; min-height: 200px; }
.panel h2 { margin: 0 0 12px; font-size: .8125rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.empty { color: var(--muted); font-family: var(--font); font-style: italic; list-style: none; }
.log { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px;
  max-height: 280px; overflow: auto; font: .875rem/1.5 var(--mono); }
.gauge-row { margin-bottom: 12px; }
.gauge-label { display: flex; justify-content: space-between; font-size: .875rem; }
.gauge-label span:last-child { font-family: var(--mono); }
.gauge { height: 8px; margin-top: 4px; border-radius: 4px; background: var(--border); overflow: hidden; }
.gauge i { display: block; height: 100%; background: var(--ok); transition: width .25s ease-out; }
.gauge-row[data-level="warn"] .gauge i { background: var(--warn); }
.gauge-row[data-level="danger"] .gauge i { background: var(--danger); }
.gauge-msg { margin: 4px 0 0; font-size: .8125rem; color: var(--danger); font-weight: 600; }
.artifacts { margin: 0; font-size: .875rem; }
.artifacts dt { font-weight: 600; }
.artifacts dd { margin: 0 0 8px; font-family: var(--mono); color: var(--muted); overflow-wrap: anywhere; }

/* Bannière */
.banner { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border: 1px solid;
  border-radius: var(--radius); font-weight: 600; }
.banner[hidden] { display: none; }
.banner .icon { width: 20px; height: 20px; }
.banner[data-kind="ok"] { color: var(--ok); background: var(--ok-bg); border-color: var(--ok); }
.banner[data-kind="warn"] { color: var(--warn); background: var(--warn-bg); border-color: var(--warn); }
.banner[data-kind="danger"] { color: var(--danger); background: var(--danger-bg); border-color: var(--danger); }
.banner .btn { margin-left: auto; }

/* Lecteur */
.player { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.icon-btn { width: 44px; height: 44px; padding: 0; }
.icon-btn .icon { width: 20px; height: 20px; }
.progress { margin: 0 8px; font-family: var(--mono); color: var(--muted); }
.speeds { display: flex; gap: 4px; margin-left: auto; }
.speeds [aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

@media (prefers-reduced-motion: reduce) {
  *, *::before { transition: none !important; animation: none !important; }
}