/* OD-28 X1 — /thuong-luong, /thuong-luong/{id}, Quick Intent and the "Trao đổi" entry blocks.
   Builds on site.css (.acc, .acc-card, .button, .badge, .facts); only exchange-specific parts live here. */

.xc-role { font-weight: 500; color: var(--muted); font-size: 1.1rem; }

/* List */
.xc-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.xc-item { background: var(--surface); border: 1px solid var(--line); border-radius: 0.6rem; }
.xc-item.needs-me { border-color: #d9b44a; }
.xc-item-link { display: flex; gap: 0.8rem; align-items: center; padding: 0.75rem 0.9rem; color: inherit; text-decoration: none; }
.xc-item-link:hover .xc-item-title { text-decoration: underline; }
.xc-thumb { width: 3.5rem; height: 3.5rem; flex: none; border-radius: 0.4rem; object-fit: cover; background: var(--page); }
.xc-item-body { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; flex: 1; }
.xc-who { font-size: 0.85rem; }
.xc-item-title { font-weight: 600; overflow-wrap: anywhere; }
.xc-item-meta, .xc-item-offer { font-size: 0.85rem; color: var(--muted); }
.xc-item-offer { color: var(--ink); }

/* Feed */
.xc-events { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.55rem; }
.xc-msg { max-width: 85%; align-self: flex-start; background: var(--page); border-radius: 0.6rem; padding: 0.45rem 0.7rem; }
.xc-msg.is-mine { align-self: flex-end; background: #e6f0e9; }
.xc-msg-who { display: block; font-size: 0.75rem; color: var(--muted); }
.xc-msg-body { margin: 0; overflow-wrap: anywhere; }
.xc-sys { align-self: center; font-size: 0.82rem; color: var(--muted); text-align: center; }
.xc-offer { border: 2px solid var(--accent); border-radius: 0.6rem; padding: 0.7rem 0.85rem; }
.xc-offer.is-done { border-width: 1px; border-color: var(--line); opacity: 0.85; }
.xc-offer-kicker { margin: 0; font-size: 0.8rem; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.03em; }
.xc-offer.is-done .xc-offer-kicker { color: var(--muted); }
.xc-offer-price { margin: 0.15rem 0; font-size: 1.25rem; font-weight: 700; }
.xc-offer-terms { margin: 0 0 0.4rem; font-size: 0.9rem; color: var(--muted); }
.xc-offer .inline-form button { margin-top: 0.3rem; }

/* Composer */
.xc-chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.xc-chip {
  margin: 0; padding: 0.4rem 0.75rem; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink); font-size: 0.88rem; font-weight: 500; text-align: left;
}
.xc-chip:hover { border-color: var(--accent); }
.xc-chip.is-suggested { border-color: var(--accent); background: #e6f0e9; }
.xc-free { margin-top: 0.9rem; }
.xc-free summary, .xc-offer-form summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.xc-free textarea { width: 100%; box-sizing: border-box; }
.xc-fieldset { border: 1px solid var(--line); border-radius: 0.5rem; margin: 0.8rem 0 0; padding: 0.3rem 0.8rem 0.6rem; }
.xc-fieldset legend { font-size: 0.9rem; font-weight: 600; padding: 0 0.3rem; }
.xc-check { display: flex; align-items: center; gap: 0.45rem; color: var(--ink); }
.xc-check input { width: auto; margin: 0; }
.xc-share { margin-top: 1rem; border: 1px dashed var(--accent); border-radius: 0.5rem; padding: 0.7rem 0.85rem; background: #f7faf8; }
.xc-share-h { margin: 0 0 0.5rem; font-weight: 600; font-size: 0.9rem; }
.xc-share a { display: inline-block; margin-top: 0.5rem; font-size: 0.88rem; }

/* Subject column */
.xc-subject-photo { width: 100%; max-height: 14rem; object-fit: cover; border-radius: 0.45rem; margin-bottom: 0.6rem; }
.xc-subject h2 a { color: inherit; }

/* Entry block on /tin-ban, /tin-mua, /ket-qua and the Quick Intent form */
.xc-entry .button { margin-top: 0.5rem; }
.xc-entry p { margin: 0; }
.xc-intro-preview { margin: 0.65rem 0 !important; padding: 0.65rem 0.8rem; border-left: 3px solid var(--accent); background: #f7faf8; color: var(--ink); }
.xc-offer-picker { border: 1px solid var(--line); border-radius: 0.5rem; margin: 0.8rem 0; padding: 0.35rem 0.7rem 0.65rem; }
.xc-offer-picker legend { padding: 0 0.25rem; font-weight: 600; }
.xc-offer-picker label { display: flex; gap: 0.55rem; align-items: flex-start; padding: 0.45rem 0; border-bottom: 1px solid var(--line); }
.xc-offer-picker label:last-child { border-bottom: 0; }
.xc-offer-picker input { margin-top: 0.25rem; width: auto; flex: 0 0 auto; }
.xc-offer-picker label > span { flex: 1 1 auto; min-width: 0; }
.xc-qi label:first-of-type { margin-top: 0.3rem; }

/* OD-36 §7.2–§7.5: pinned stage block, "Xác nhận chốt" step and the Deal panel */
.xc-pin p { margin: 0; }
.xc-pin.is-action { border: 2px solid var(--accent); }
.xc-pin.is-action h2 { margin-top: 0; }
.xc-confirm { border: 2px solid var(--accent); }
.xc-confirm-title { margin: 0 0 0.4rem; font-weight: 600; }
.xc-confirm .field-errors .button { margin-top: 0.5rem; }
.xc-deal.is-agreed { border-top: 4px solid var(--accent); }
.xc-deal.is-cancelled { border-top: 4px solid var(--muted); }
.xc-deal h2 { margin-top: 0; overflow-wrap: anywhere; }
.xc-deal-terms { margin: 0.3rem 0 0.8rem; }
.xc-deal-sub { margin: 0.6rem 0 0.4rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.xc-contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: 0.8rem; }
.xc-contact > div { background: var(--page); border-radius: 0.5rem; padding: 0.6rem 0.75rem; }
.xc-contact p { margin: 0.15rem 0; overflow-wrap: anywhere; }
.xc-contact-h { font-size: 0.8rem; font-weight: 600; color: var(--muted); }
.xc-call { margin: 0 0 0 0.4rem; padding: 0.2rem 0.7rem; font-size: 0.85rem; }
.xc-warn { margin-top: 0.9rem; border-left: 4px solid #d9b44a; background: #fdf8ea; padding: 0.55rem 0.8rem; border-radius: 0.3rem; }
.xc-warn p { margin: 0; }
.xc-warn ul { margin: 0.3rem 0 0; padding-left: 1.1rem; }
.xc-deal-status { font-size: 0.92rem; }
.xc-step { margin-top: 0.8rem; border-top: 1px solid var(--line); padding-top: 0.8rem; }
button.danger { background: #8a1c1c; border-color: #8a1c1c; color: #fff; }
.xc-group { margin: 1.2rem 0 0.5rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.xc-chip-warn { color: #8a4b00; font-weight: 600; }

@media (max-width: 480px) {
  .xc-msg { max-width: 100%; }
  .xc-item-link { padding: 0.65rem 0.7rem; }
  .site-header nav .nav-exchange { font-size: 0; }
  .site-header nav .nav-exchange::before { content: "↔"; font-size: 1rem; }
  .nav-badge { font-size: 0.75rem; }
}

/* N2 §7: Báo cáo/Chặn are small secondary tools under the counterpart's name — visible without a menu (NG7). */
.xc-trust { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 1rem; margin: -0.4rem 0 0.9rem; font-size: 0.9rem; }
.xc-trust > a, .xc-block > summary { color: var(--muted); cursor: pointer; }
.xc-block > summary { list-style: none; }
.xc-block > summary::-webkit-details-marker { display: none; }
.xc-block[open] { flex-basis: 100%; border: 1px solid var(--line); border-radius: 0.5rem; padding: 0.5rem 0.8rem 0.7rem; background: var(--surface); }
.xc-block p { margin: 0.5rem 0; color: var(--ink); }
.xc-report { margin: 0.4rem 0 1rem; font-size: 0.9rem; }
.xc-report > a, .xc-report summary { color: var(--muted); cursor: pointer; }
.xc-report details[open] { border: 1px solid var(--line); border-radius: 0.5rem; padding: 0.5rem 0.8rem 0.7rem; background: var(--surface); }
.xc-report details[open] summary { margin-bottom: 0.3rem; }