/* Kiểu chung — mobile-first, tiếng Việt, bản TEST CTV combo du lịch. */
:root {
  --xanh: #0e7a5f; --xanh-dam: #0a5c48; --nen: #f4f6f5; --the: #ffffff;
  --chu: #1c2b26; --chu-mo: #5b6b64; --canh-bao: #b45309; --chan: #b91c1c;
  --ok: #15803d; --vien: #d7dedb; --radius: 12px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--nen); color: var(--chu); line-height: 1.5; }
header.topbar { background: var(--xanh); color: #fff; padding: 12px 16px; display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
header.topbar h1 { font-size: 1.1rem; margin: 0; }
header.topbar .who { font-size: .85rem; opacity: .95; }
main { max-width: 1080px; margin: 0 auto; padding: 16px; }
h2 { font-size: 1.15rem; margin: 20px 0 8px; }
h3 { font-size: 1rem; margin: 0 0 8px; }
.muted { color: var(--chu-mo); font-size: .9rem; }
.warn-text { color: var(--canh-bao); font-weight: 600; }
.card { background: var(--the); border: 1px solid var(--vien); border-radius: var(--radius); padding: 14px; margin: 10px 0; }
.card dl { display: grid; grid-template-columns: 140px 1fr; gap: 4px 10px; margin: 0; font-size: .95rem; }
.card dt { color: var(--chu-mo); }
.card dd { margin: 0; }
.btn { display: inline-block; border: 1px solid var(--xanh); background: var(--xanh); color: #fff; border-radius: 8px; padding: 9px 14px; font-size: .95rem; cursor: pointer; margin: 4px 4px 4px 0; }
.btn:hover { background: var(--xanh-dam); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-secondary { background: #fff; color: var(--xanh); }
.btn-danger { background: #fff; color: var(--chan); border-color: var(--chan); }
.btn-small { padding: 5px 9px; font-size: .85rem; }
input, select, textarea { width: 100%; padding: 9px 10px; border: 1px solid var(--vien); border-radius: 8px; font-size: 1rem; margin: 4px 0 10px; background: #fff; }
label { font-weight: 600; font-size: .92rem; display: block; }
form.inline label { display: inline-block; margin-right: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 720px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 12px 0; }
.tabs button { border: 1px solid var(--vien); background: #fff; border-radius: 999px; padding: 8px 14px; cursor: pointer; font-size: .95rem; }
.tabs button.active { background: var(--xanh); color: #fff; border-color: var(--xanh); }
.tab-panel[hidden] { display: none; }
/* Chat */
.chat-log { display: flex; flex-direction: column; gap: 10px; margin: 12px 0; }
.msg { max-width: 92%; padding: 10px 12px; border-radius: 12px; background: #fff; border: 1px solid var(--vien); white-space: pre-wrap; }
.msg.ai { align-self: flex-start; background: #e8f5f0; }
.msg.ctv { align-self: flex-end; background: #fff; }
.msg.system { align-self: center; background: #fef3c7; font-size: .9rem; }
.msg .who { font-size: .8rem; color: var(--chu-mo); display: block; margin-bottom: 4px; }
/* Thẻ vé / khách sạn */
.price { font-weight: 700; color: var(--xanh-dam); font-size: 1.05rem; }
.price-unknown { color: var(--canh-bao); font-weight: 600; }
.extra-fee { color: var(--canh-bao); font-weight: 700; }
.rule-box { border-radius: 8px; padding: 8px 10px; margin: 6px 0; font-size: .92rem; }
.rule-block { background: #fee2e2; border: 1px solid #fca5a5; }
.rule-warn { background: #fef3c7; border: 1px solid #fcd34d; }
.rule-info { background: #dbeafe; border: 1px solid #93c5fd; }
.rule-missing { background: #f3e8ff; border: 1px solid #d8b4fe; }
.rule-ok { background: #dcfce7; border: 1px solid #86efac; }
.mini-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 8px 0; }
.mini-table th, .mini-table td { border: 1px solid var(--vien); padding: 6px 8px; text-align: left; }
.mini-table th { background: #eef2f1; }
details summary { cursor: pointer; font-weight: 600; margin: 8px 0; }
/* Kanban */
.kanban { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 12px; }
.kanban-col { min-width: 260px; max-width: 300px; flex: 1; background: #e9efed; border-radius: var(--radius); padding: 10px; }
.kanban-col h3 { font-size: .95rem; }
.kanban-col.cancel-col { background: #fde8e8; }
.order-card { background: #fff; border: 1px solid var(--vien); border-radius: 10px; padding: 10px; margin: 8px 0; font-size: .9rem; cursor: pointer; }
.order-card.selected { outline: 3px solid var(--xanh); }
.order-card .code { font-weight: 700; }
.order-card .money { display: flex; justify-content: space-between; }
/* Lưới giá */
.price-grid { overflow-x: auto; }
.price-grid table { border-collapse: collapse; min-width: 480px; }
.price-grid td, .price-grid th { border: 1px solid var(--vien); padding: 6px; }
.price-grid input { margin: 0; padding: 6px; width: 110px; }
/* QR */
.qr-box svg { max-width: 260px; width: 100%; height: auto; display: block; margin: 8px auto; }
.qr-payload { word-break: break-all; font-size: .8rem; color: var(--chu-mo); }
.qr-fallback { border: 2px dashed var(--canh-bao); padding: 12px; border-radius: 8px; }
/* Thông báo */
.error-box { background: #fee2e2; border: 1px solid #fca5a5; border-radius: 8px; padding: 10px; margin: 10px 0; }
#toast-box { position: fixed; bottom: 16px; left: 16px; right: 16px; z-index: 50; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast { background: #1c2b26; color: #fff; padding: 10px 16px; border-radius: 999px; font-size: .92rem; }
.login-wrap { max-width: 420px; margin: 40px auto; }
.login-wrap .card { padding: 20px; }
footer { text-align: center; color: var(--chu-mo); font-size: .85rem; padding: 20px; }