:root {
  --bg: #f4f6fa;
  --surface: #ffffff;
  --ink: #14243d;
  --ink-2: #44506a;
  --ink-3: #7a8499;
  --line: #e2e7ef;
  --brand: #1f3a5f;
  --accent: #2c5d8f;
  --accent-soft: #e8eff7;
  --good: #047857;
  --good-soft: #ecfdf5;
  --bot: #f1f4f9;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(11, 27, 58, .06), 0 8px 24px rgba(11, 27, 58, .06);
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.45;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

/* ---------- En-tête ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font-size: 18px; letter-spacing: -.01em; }
.brand-ic { width: 36px; height: 36px; border-radius: 9px; display: block; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.05; }
.brand-nom { font-family: Quicksand, Inter, sans-serif; font-weight: 700; font-size: 20px; letter-spacing: .01em; color: var(--brand); }
.brand-tag { font-size: 9px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-top: 2px; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--surface);
  border-radius: 999px; padding: 7px 10px; color: var(--ink-2); font-size: 13px;
}
.icon-btn[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent); border-color: #bae6fd; }
.btn { border-radius: 999px; padding: 10px 18px; font-weight: 600; border: 1px solid transparent; font-size: 15px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #234c77; }
.btn-ghost { background: var(--brand); color: #fff; padding: 8px 14px; font-size: 14px; }
.btn-block { width: 100%; }
@media (max-width: 420px) { #btnRdvTop { display: none; } .icon-btn .lbl { display: none; } }

/* ---------- Mise en page ---------- */
.layout {
  max-width: 1180px; margin: 0 auto; padding: 16px;
  display: grid; gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas: "hero" "chat" "agents";
}
.hero { grid-area: hero; }
.chat { grid-area: chat; }
.agents { grid-area: agents; }
@media (min-width: 980px) {
  .layout { grid-template-columns: minmax(0, 1fr) 340px; grid-template-areas: "hero hero" "chat agents"; gap: 20px 24px; padding: 28px 24px; }
}

.hero .eyebrow { margin: 0 0 6px; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); }
.hero h1 { margin: 0; font-size: clamp(22px, 5.6vw, 36px); line-height: 1.15; letter-spacing: -.02em; font-weight: 800; }
.hero h1 span { color: var(--ink-2); font-weight: 700; }
.hero .sub { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; max-width: 62ch; }

/* ---------- Chat ---------- */
.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; min-height: 0;
  height: min(78vh, 680px); height: min(78dvh, 680px);
}
@media (min-width: 980px) { .chat { height: 640px; } }
.chat-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.avatar { width: 36px; height: 36px; border-radius: 50%; display: block; object-fit: cover; }
.chat-title { font-weight: 700; font-size: 15px; }
.chat-status { font-size: 12px; color: var(--ink-3); display: flex; align-items: center; gap: 6px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: #10b981; }

.fil { position: relative; flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; overscroll-behavior: contain; }
.fil > * { flex-shrink: 0; }
.msg { max-width: 86%; padding: 10px 14px; border-radius: 16px; font-size: 15px; white-space: pre-wrap; overflow-wrap: anywhere; animation: pop .18s ease-out; }
.msg.bot { background: var(--bot); border-bottom-left-radius: 6px; align-self: flex-start; }
.msg.user { background: var(--brand); color: #fff; border-bottom-right-radius: 6px; align-self: flex-end; }
.msg.err { background: #fef2f2; color: #991b1b; align-self: center; font-size: 13px; }
@keyframes pop { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); animation: blink 1s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; } .typing i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

.chips { display: flex; gap: 8px; padding: 0 16px; overflow-x: auto; scrollbar-width: none; }
.chips:not(:empty) { padding-bottom: 10px; }
.chips::-webkit-scrollbar { display: none; }
@media (min-width: 600px) { .chips { flex-wrap: wrap; overflow: visible; } }
.chip {
  flex: 0 0 auto; border: 1.5px solid var(--accent); color: var(--accent); background: var(--surface);
  border-radius: 999px; padding: 8px 14px; font-size: 14px; font-weight: 600; white-space: nowrap;
}
.chip:hover, .chip:focus-visible { background: var(--accent-soft); outline: none; }
.chip.cta { background: var(--accent); color: #fff; }

.saisie { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-top: 1px solid var(--line); }
.saisie input { flex: 1; min-width: 0; border: 1px solid var(--line); background: var(--bg); border-radius: 999px; padding: 11px 16px; font-size: 16px; outline: none; }
.saisie input:focus { border-color: var(--accent); background: #fff; }
.mic, .send { flex: 0 0 auto; width: 44px; height: 44px; border-radius: 50%; border: none; display: grid; place-items: center; }
.mic { background: var(--accent-soft); color: var(--accent); }
.mic.on { background: #dc2626; color: #fff; animation: pulse 1.2s infinite; }
.mic[hidden] { display: none; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(220, 38, 38, .45); } 100% { box-shadow: 0 0 0 12px rgba(220, 38, 38, 0); } }
.send { background: var(--brand); color: #fff; }
.send:disabled { opacity: .45; cursor: default; }
.mention { margin: 0; padding: 0 16px 10px; font-size: 11px; color: var(--ink-3); text-align: center; }

/* ---------- Carte de recommandation ---------- */
.reco { align-self: stretch; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); box-shadow: var(--shadow); animation: pop .25s ease-out; }
.reco-head { background: linear-gradient(120deg, #1d3557, #4a6587); color: #fff; padding: 12px 16px; }
.reco-head .k { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; opacity: .75; font-weight: 700; }
.reco-head .s { font-size: 14px; margin-top: 2px; }
.reco-list { padding: 4px 16px; }
.reco-item { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: start; }
.reco-item:last-child { border-bottom: none; }
.reco-item .ic { font-size: 22px; line-height: 1; padding-top: 2px; }
.reco-item .n { font-weight: 700; font-size: 15px; }
.reco-item .r { font-size: 13px; color: var(--ink-2); margin-top: 2px; }
.reco-item .eq { font-size: 12px; color: var(--ink-3); margin-top: 4px; }
.reco-item .p { font-weight: 700; white-space: nowrap; font-size: 14px; text-align: right; }
.reco-item .p small { display: block; font-weight: 500; color: var(--ink-3); font-size: 11px; }
.sim { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border-top: 1px solid var(--line); }
.sim > div { background: var(--surface); padding: 12px 16px; }
.sim .k { font-size: 12px; color: var(--ink-3); }
.sim .v { white-space: nowrap; font-size: clamp(16px, 4.6vw, 20px); font-weight: 800; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.sim .big { grid-column: 1 / -1; background: var(--good-soft); text-align: center; padding: 16px; }
.sim .big .v { font-size: clamp(30px, 8vw, 40px); color: var(--good); }
.sim .big .k { color: var(--good); font-weight: 600; }
.sim .big .v2 { font-size: 15px; color: var(--good); font-weight: 600; margin-top: 2px; }
.reco-foot { padding: 12px 16px 16px; display: grid; gap: 8px; }
.reco-foot .note { font-size: 11px; color: var(--ink-3); text-align: center; }

/* ---------- Cartes agents ---------- */
.agents h2 { font-size: 16px; margin: 4px 0 10px; }
.cartes { display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 600px) and (max-width: 979px) { .cartes { grid-template-columns: 1fr 1fr; } }
.carte { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; transition: border-color .2s, box-shadow .2s; }
.carte.hl { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.carte .t { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.carte .t .ic { font-size: 22px; }
.carte p { margin: 6px 0 0; font-size: 14px; color: var(--ink-2); }
.carte .prix { margin-top: 8px; font-size: 12px; color: var(--ink-3); }
.carte .prix b { color: var(--ink); }
.badge { margin-left: auto; font-size: 11px; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 2px 8px; font-weight: 700; }

.pied { text-align: center; font-size: 12px; color: var(--ink-3); padding: 8px 16px 24px; }

/* ---------- Dialogue RDV ---------- */
.dlg { border: none; border-radius: 20px; padding: 0; width: min(520px, calc(100vw - 24px)); box-shadow: 0 20px 60px rgba(11, 27, 58, .3); }
.dlg::backdrop { background: rgba(11, 27, 58, .45); }
.dlg form, .merci { padding: 18px; display: grid; gap: 10px; }
.dlg-head { display: flex; align-items: center; justify-content: space-between; }
.dlg h3 { margin: 0; font-size: 19px; }
.dlg-sub { margin: 0; color: var(--ink-2); font-size: 14px; }
.dlg label { display: grid; gap: 4px; font-size: 13px; font-weight: 600; color: var(--ink-2); }
.dlg input, .dlg textarea { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-size: 16px; font-weight: 400; color: var(--ink); background: #fff; width: 100%; }
.dlg input:focus, .dlg textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.row2 { display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 480px) { .row2 { grid-template-columns: 1fr 1fr; } }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.err { color: #b91c1c; font-size: 13px; margin: 0; min-height: 1em; }
.merci { text-align: center; justify-items: center; padding: 28px 18px; }
.merci-ic { width: 52px; height: 52px; border-radius: 50%; background: var(--good-soft); color: var(--good); display: grid; place-items: center; font-size: 26px; font-weight: 800; }
.merci p { margin: 0; color: var(--ink-2); }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; scroll-behavior: auto !important; } }