/* Uninbaby · khu làm việc (phiếu đăng ký, quản trị) — viết thuần, không cần Tailwind tải từ mạng.
   Dùng mã màu, phông của bộ Trắng Xanh (trang-xanh.css nạp trước). */
* { box-sizing: border-box; }
html, body { margin: 0; }
html { background: var(--tx-soft) !important; } /* trang ngắn: phần dưới không lộ nền trắng */
body { font: 400 15px/1.55 var(--tx-sans); color: var(--tx-ink); background: var(--tx-soft) !important; text-wrap: pretty; }
h1, h2, h3 { font-family: var(--tx-display); line-height: 1.2; margin: 0; text-wrap: balance; letter-spacing: -0.2px; }
h1 { font-size: 26px; font-weight: 800; }
h2 { font-size: 20px; font-weight: 800; }
h3 { font-size: 17px; font-weight: 700; }
p { margin: 0; }
a { color: var(--tx-blue-deep); }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.ub-banthu { color: #fff; font: 600 12px/1.4 var(--tx-sans); text-align: center; padding: 4px 8px; }

/* Thanh trên */
.dau { position: sticky; top: 0; z-index: 30; background: #fff; border-bottom: 1.5px solid var(--tx-line); }
.dau-trong { max-width: 1120px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--tx-ink); font-family: var(--tx-display); font-weight: 800; font-size: 18px; }
.logo b { width: 40px; height: 40px; border-radius: 14px; border: 2px solid var(--tx-blue); display: grid; place-items: center; color: var(--tx-blue-deep); font: 800 15px/1 var(--tx-sans); }
.dau nav { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.dau nav a, .dau nav button { min-height: 40px; padding: 0 12px; border-radius: 999px; display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
  font-weight: 700; font-size: 14px; color: var(--tx-blue-deep); background: #fff; border: 2px solid var(--tx-line); cursor: pointer; }
.dau nav a[aria-current="page"] { background: var(--tx-blue); border-color: var(--tx-blue); color: #fff; }
.ten-nguoi { font-size: 13px; color: var(--tx-muted); }

/* Bố cục */
.khung { max-width: 1120px; margin: 0 auto; padding: 20px 16px 96px; }
.tieu-de { margin-bottom: 16px; }
.tieu-de p { color: var(--tx-muted); margin-top: 4px; }
.the-lon { background: #fff; border: 1.5px solid var(--tx-line); border-radius: 24px; padding: 20px; box-shadow: var(--tx-shadow); margin-bottom: 16px; }
.the-lon > h2, .the-lon > h3 { margin-bottom: 4px; }
.ghi-chu { font-size: 13px; color: var(--tx-muted); }
.luoi { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px 14px; margin-top: 14px; }
.luoi .rong { grid-column: 1 / -1; }
.hang-ngang { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* Ô nhập */
label.o-nhap { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 700; color: var(--tx-ink); }
label.o-nhap small { font-weight: 500; color: var(--tx-muted); font-size: 12px; }
.o { min-height: 46px; width: 100%; padding: 0 12px; border: 2px solid var(--tx-line); border-radius: 14px; background: #fff; font-size: 15px; }
textarea.o { padding: 10px 12px; min-height: 80px; resize: vertical; }
.o:focus { outline: 3px solid var(--tx-blue-deep); outline-offset: 1px; border-color: var(--tx-blue); }
.o[readonly] { background: var(--tx-soft); }
.o-nho { min-height: 40px; padding: 0 8px; border-radius: 10px; font-size: 14px; }
.chon-hop { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; font-weight: 600; font-size: 14px; }
.chon-hop input { width: 20px; height: 20px; accent-color: var(--tx-blue); }

/* Nút */
.nut { min-height: 46px; padding: 0 20px; border-radius: 999px; border: 0; background: var(--tx-blue); color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: var(--tx-press); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; }
.nut:hover { background: #1b52e6; }
.nut:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--tx-blue-deep); }
.nut:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.nut-vien { background: #fff; color: var(--tx-blue-deep); border: 2px solid var(--tx-line); box-shadow: var(--tx-press-soft); }
.nut-vien:hover { background: #fff; border-color: var(--tx-blue); }
.nut-do { background: #fff; color: #b42318; border: 2px solid #f4c7c3; box-shadow: 0 3px 0 #f4c7c3; }
.nut-do:hover { background: #fff5f4; }
.nut-nho { min-height: 38px; padding: 0 12px; font-size: 13px; box-shadow: none; }
.nut-nho:active { transform: none; }
.nut-icon { width: 40px; padding: 0; }
.nut-rong { width: 100%; }
.thanh-nut { position: sticky; bottom: 0; background: linear-gradient(transparent, var(--tx-soft) 30%); padding: 16px 0 12px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

/* Thẻ trạng thái */
.nhan { display: inline-flex; align-items: center; gap: 4px; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 800; white-space: nowrap; }
.nhan-cho { background: #fff1f5; color: #be123c; }
.nhan-duyet { background: var(--tx-mint); color: var(--tx-success); }
.nhan-tuchoi { background: #f1f2f6; color: #4b5470; }
.nhan-tang { background: var(--tx-blush); color: var(--tx-pink-ink); }
.nhan-mua { background: var(--tx-sky); color: var(--tx-blue-deep); }

/* Thẻ chọn mục */
.the-tab { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; margin-bottom: 16px; scrollbar-width: thin; }
.the-tab button { min-height: 42px; padding: 0 16px; border-radius: 999px; border: 2px solid var(--tx-line); background: #fff; color: var(--tx-blue-deep);
  font-weight: 800; font-size: 14px; white-space: nowrap; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.the-tab button[aria-selected="true"] { background: var(--tx-blue); border-color: var(--tx-blue); color: #fff; }
.so-dem { background: #be123c; color: #fff; border-radius: 999px; padding: 0 7px; font-size: 12px; line-height: 20px; }

/* Bảng */
.cuon-ngang { overflow-x: auto; border: 1.5px solid var(--tx-line); border-radius: 16px; background: #fff; }
table.bang { border-collapse: collapse; width: 100%; font-size: 14px; }
table.bang th, table.bang td { padding: 8px 10px; border-bottom: 1px solid var(--tx-line); text-align: left; vertical-align: middle; white-space: nowrap; }
table.bang th { background: var(--tx-sky); color: var(--tx-ink); font-weight: 800; font-size: 13px; position: sticky; top: 0; }
table.bang td.so, table.bang th.so { text-align: right; font-variant-numeric: tabular-nums; }
table.bang tr.tong td { font-weight: 800; background: var(--tx-soft); }
table.bang tr.bam { cursor: pointer; }
table.bang tr.bam:hover td { background: #f7faff; }
table.bang td .o-nho { min-width: 90px; }
table.bang td select.o-nho { min-width: 160px; }

/* Món đồ trong phiếu */
.mon { border: 1.5px solid var(--tx-line); border-radius: 16px; padding: 12px; margin-top: 10px; background: #fff; }
.mon-luoi { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; align-items: end; }
.mua-tang { display: inline-flex; border: 2px solid var(--tx-line); border-radius: 999px; overflow: hidden; }
.mua-tang button { min-height: 40px; padding: 0 14px; border: 0; background: #fff; font-weight: 800; font-size: 14px; color: var(--tx-muted); cursor: pointer; }
.mua-tang button[aria-pressed="true"] { background: var(--tx-blue); color: #fff; }
.mua-tang button.tang[aria-pressed="true"] { background: var(--tx-pink-ink); }

/* Tổng tiền */
.tong-tien { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-top: 12px; }
.tong-tien div { background: var(--tx-soft); border-radius: 14px; padding: 10px 12px; }
.tong-tien span { display: block; font-size: 12px; color: var(--tx-muted); font-weight: 700; }
.tong-tien b { font-size: 18px; font-variant-numeric: tabular-nums; }
.tong-tien .noi { background: var(--tx-blue); color: #fff; }
.tong-tien .noi span { color: #dbe6ff; }

/* Thẻ phiếu */
.phieu { background: #fff; border: 1.5px solid var(--tx-line); border-radius: 20px; padding: 16px; margin-bottom: 12px; }
.phieu-dau { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; align-items: flex-start; }
.phieu dl { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 6px 14px; margin: 10px 0 0; font-size: 14px; }
.phieu dt { color: var(--tx-muted); font-size: 12px; font-weight: 700; }
.phieu dd { margin: 0; }
.phieu ul { margin: 8px 0 0; padding-left: 18px; font-size: 14px; }

/* Thông báo */
.bao { border-radius: 14px; padding: 12px 14px; font-size: 14px; font-weight: 600; margin-top: 12px; }
.bao-loi { background: #fff1f0; color: #b42318; border: 1.5px solid #f4c7c3; }
.bao-ok { background: var(--tx-mint); color: var(--tx-success); }
.bao-tin { background: var(--tx-sky); color: var(--tx-blue-deep); }
#toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--tx-blue-deep); color: #fff; padding: 12px 18px; border-radius: 16px;
  font-weight: 700; font-size: 14px; max-width: min(92vw, 520px); z-index: 80; opacity: 0; pointer-events: none; transition: opacity .25s; box-shadow: 0 8px 24px rgba(8,24,90,.25); }
#toast.hien { opacity: 1; }
#toast.loi { background: #b42318; }

/* Hộp nổi (sửa phiếu) */
.hop-noi { position: fixed; inset: 0; background: rgba(8, 24, 90, .35); z-index: 60; display: flex; align-items: flex-start; justify-content: center; overflow-y: auto; padding: 24px 12px; }
.hop-noi > div { background: var(--tx-soft); border-radius: 24px; width: min(980px, 100%); padding: 20px; }

.trong { text-align: center; padding: 32px 16px; color: var(--tx-muted); }
.trong i { font-size: 32px; color: var(--tx-blue); display: block; margin-bottom: 6px; }

@media (max-width: 640px) {
  h1 { font-size: 22px; }
  .the-lon { padding: 16px; border-radius: 20px; }
  .dau-trong { gap: 8px; padding: 8px 12px; }
  .dau nav { margin-left: 0; width: 100%; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; }
  .dau nav a, .dau nav button { min-height: 38px; padding: 0 10px; font-size: 13px; white-space: nowrap; flex: none; }
  .thanh-nut { flex-wrap: nowrap; }
  .thanh-nut .nut { flex: 1; padding: 0 10px; font-size: 14px; white-space: nowrap; }
  .thanh-nut .nut-vien i { display: none; }
  .khung { padding: 16px 12px 96px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } .nut:active { transform: none; } }

/* 30/10/2026: câu gợi ý bấm vào điền sẵn (lý do khách không học, hộp tin nhắn) */
.goi-y-chip { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.goi-y-chip button { min-height: 36px; padding: 4px 12px; border-radius: 999px; border: 1.5px solid var(--tx-line); background: var(--tx-soft);
  color: var(--tx-blue-deep); font: 600 13px/1.3 var(--tx-sans); cursor: pointer; text-align: left; }
.goi-y-chip button:hover { border-color: var(--tx-blue); }