:root {
  --nen: #f6f7f9; --the: #ffffff; --chu: #16191f; --phu: #4a5260; --vien: #e2e5ea;
  --chinh: #0f766e; --chinh-dam: #0b5c56; --tren-chinh: #ffffff; --nhat: #e6f4f2;
  --canh: #b45309; --canh-nen: #fef3c7; --do: #b91c1c; --do-nen: #fee2e2; --xanh-nen: #dcfce7; --xanh: #15803d;
  --bo: 14px; --bong: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.08);
}
@media (prefers-color-scheme: dark) {
  :root { --nen: #0f1216; --the: #181c22; --chu: #eef1f5; --phu: #b3bac5; --vien: #2a3039;
    --chinh: #2dd4bf; --chinh-dam: #5eead4; --tren-chinh: #04231f; --nhat: #12302c;
    --canh: #fbbf24; --canh-nen: #3a2c0c; --do: #f87171; --do-nen: #3b1414; --xanh-nen: #0f2e1b; --xanh: #4ade80; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--nen); color: var(--chu);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; -webkit-text-size-adjust: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--chinh); }
.app { max-width: 760px; margin: 0 auto; padding: 16px 16px 96px; }
.dau { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.dau h1 { font-size: 20px; margin: 0; line-height: 1.25; }
.dau .nho { color: var(--phu); font-size: 14px; }
.ngon { display: inline-flex; border: 1px solid var(--vien); border-radius: 999px; overflow: hidden; flex: none; }
.ngon button { border: 0; background: transparent; padding: 4px 10px; font-size: 13px; cursor: pointer; }
.ngon button.on { background: var(--chinh); color: var(--tren-chinh); }
.the { background: var(--the); border: 1px solid var(--vien); border-radius: var(--bo); padding: 16px; box-shadow: var(--bong); margin-bottom: 12px; }
.the h2 { font-size: 16px; margin: 0 0 12px; }
.luoi { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 12px; }
@media (min-width: 600px) { .luoi { grid-template-columns: repeat(3, 1fr); } }
.so { background: var(--the); border: 1px solid var(--vien); border-radius: var(--bo); padding: 14px; }
.so b { display: block; font-size: 26px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.so span { color: var(--phu); font-size: 13px; }
.so.canh b { color: var(--canh); } .so.do b { color: var(--do); }
.cot { display: flex; align-items: flex-end; gap: 4px; height: 120px; padding-top: 8px; }
.cot div { flex: 1; background: var(--chinh); border-radius: 4px 4px 0 0; min-height: 2px; }
.cot-nhan { display: flex; gap: 4px; font-size: 11px; color: var(--phu); margin-top: 4px; }
.cot-nhan span { flex: 1; text-align: center; overflow: hidden; }
label { display: block; font-size: 14px; color: var(--phu); margin: 10px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=number], input[type=date], select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--vien); border-radius: 10px; background: var(--the); }
textarea { min-height: 70px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--chinh); outline-offset: 0; border-color: transparent; }
.tick { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--chu); margin: 10px 0; }
.tick input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; accent-color: var(--chinh); }
.nut { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--vien); background: var(--the);
  border-radius: 10px; padding: 9px 14px; cursor: pointer; text-decoration: none; color: var(--chu); font-size: 15px; }
.nut.chinh { background: var(--chinh); color: var(--tren-chinh); border-color: var(--chinh); font-weight: 600; }
.nut.do { color: var(--do); border-color: var(--do); }
.nut.rong { width: 100%; padding: 12px; margin-top: 14px; }
.nut:disabled { opacity: .5; cursor: default; }
.hang { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.hang > * { flex: 1 1 140px; }
.chip { display: inline-block; border: 1px solid var(--vien); background: var(--the); border-radius: 999px; padding: 5px 12px; font-size: 14px; cursor: pointer; }
.chip.on { background: var(--chinh); color: var(--tren-chinh); border-color: var(--chinh); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.ds { list-style: none; margin: 0; padding: 0; }
.ds li { display: flex; gap: 12px; align-items: center; padding: 12px 4px; border-bottom: 1px solid var(--vien); cursor: pointer; }
.ds li:last-child { border-bottom: 0; }
.ds .ten { font-weight: 600; }
.ds .phu { color: var(--phu); font-size: 13px; }
.ds .phai { margin-left: auto; text-align: right; flex: none; }
.nhan { display: inline-block; font-size: 12px; border-radius: 999px; padding: 2px 8px; background: var(--nhat); color: var(--chinh-dam); white-space: nowrap; }
.nhan.sap-mat { background: var(--canh-nen); color: var(--canh); }
.nhan.da-mat { background: var(--do-nen); color: var(--do); }
.nhan.moi { background: var(--xanh-nen); color: var(--xanh); }
.cs { border-bottom: 1px solid var(--vien); padding: 12px 0; }
.cs:last-child { border-bottom: 0; }
.cs .hang { margin-top: 8px; }
.cs .hang .nut { flex: 0 1 auto; font-size: 14px; padding: 7px 12px; }
.tin { background: var(--nen); border-radius: 10px; padding: 10px; font-size: 14px; color: var(--phu); margin-top: 8px; }
.dieu-huong { position: fixed; left: 0; right: 0; bottom: 0; background: var(--the); border-top: 1px solid var(--vien);
  display: flex; justify-content: center; padding-bottom: env(safe-area-inset-bottom); z-index: 5; }
.dieu-huong a { flex: 1; max-width: 190px; text-align: center; padding: 10px 4px 12px; text-decoration: none; color: var(--phu); font-size: 13px; }
.dieu-huong a b { display: block; font-size: 20px; line-height: 1.2; font-weight: 400; }
.dieu-huong a.on { color: var(--chinh); font-weight: 600; }
.bao { position: fixed; left: 50%; bottom: 84px; transform: translateX(-50%); background: var(--chu); color: var(--nen);
  padding: 10px 16px; border-radius: 10px; font-size: 14px; z-index: 9; max-width: calc(100% - 32px); }
.loi { color: var(--do); font-size: 14px; margin-top: 8px; min-height: 1em; }
.qr { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.qr .anh { background: #fff; padding: 10px; border-radius: 10px; line-height: 0; }
.qr .anh img { width: 180px; height: 180px; image-rendering: pixelated; }
.link { word-break: break-all; font-size: 13px; color: var(--phu); }
.giua { max-width: 420px; margin: 6vh auto 0; }
.trong { color: var(--phu); text-align: center; padding: 24px 8px; }
/* ===== Màn check-in (máy tính bảng / điện thoại khách) ===== */
.kiosk { max-width: 520px; margin: 0 auto; padding: 24px 16px 40px; min-height: 100dvh; }
.kiosk .dau-k { text-align: center; margin: 8px 0 20px; }
.kiosk .dau-k small { color: var(--phu); }
.kiosk h1 { font-size: 26px; margin: 4px 0 0; line-height: 1.25; }
.so-dt { font-size: 34px; text-align: center; letter-spacing: 2px; font-variant-numeric: tabular-nums; padding: 14px; border: 2px solid var(--vien);
  border-radius: 14px; background: var(--the); min-height: 70px; }
.ban-phim { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.ban-phim button { font-size: 28px; padding: 16px 0; border-radius: 14px; border: 1px solid var(--vien); background: var(--the); cursor: pointer; }
.ban-phim button:active { background: var(--nhat); }
.chao-mung { text-align: center; padding-top: 6vh; }
.chao-mung .lon { font-size: 64px; font-weight: 700; color: var(--chinh); line-height: 1.1; font-variant-numeric: tabular-nums; }
.chao-mung h2 { font-size: 28px; margin: 10px 0; }
@media print { .dieu-huong, .khong-in { display: none !important; } .app { padding: 0; } .the { box-shadow: none; border: 0; } }