:root { --xanh: #0b6e4f; --xanh-nhat: #e6f4ee; --do: #b42318; --vang: #b54708; --xam: #667085; --vien: #d0d5dd; --nen: #f7f8fa; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: #101828; background: var(--nen); }
header { background: var(--xanh); color: #fff; padding: 10px 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
header h1 { font-size: 18px; margin: 0; flex: 1; }
header .gio { font-size: 14px; background: rgba(255,255,255,.15); padding: 2px 10px; border-radius: 99px; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.the { background: #fff; border: 1px solid var(--vien); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.the h2 { font-size: 17px; margin: 0 0 10px; color: var(--xanh); }
label { display: block; font-size: 14px; color: var(--xam); margin: 8px 0 2px; }
input, select, textarea { font: inherit; width: 100%; padding: 9px 10px; border: 1px solid var(--vien); border-radius: 8px; background: #fff; }
textarea { min-height: 70px; resize: vertical; }
button { font: inherit; padding: 9px 16px; border: 0; border-radius: 8px; background: var(--xanh); color: #fff; cursor: pointer; }
button.phu { background: #fff; color: var(--xanh); border: 1px solid var(--xanh); }
button.nho { padding: 4px 10px; font-size: 14px; }
button:disabled { opacity: .5; cursor: default; }
.hang { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; }
.hang > * { flex: 1; min-width: 120px; }
.hang > button { flex: 0 0 auto; }
.loi { color: var(--do); margin: 8px 0; min-height: 1em; }
.nho-xam { font-size: 13px; color: var(--xam); }
.nhan { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 99px; background: var(--xanh-nhat); color: var(--xanh); margin-right: 4px; }
.nhan.cao, .nhan.thap { background: #fef0c7; color: var(--vang); }
.nhan.nguy_hiem, .nhan.do { background: #fee4e2; color: var(--do); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid #eaecf0; vertical-align: top; }
th { color: var(--xam); font-weight: 500; font-size: 13px; }
.bo-cuc { display: grid; grid-template-columns: 280px 1fr; gap: 16px; }
@media (max-width: 800px) { .bo-cuc { grid-template-columns: 1fr; } }
.ds-bn button { display: block; width: 100%; text-align: left; background: #fff; color: inherit; border: 1px solid var(--vien); margin-bottom: 6px; }
.ds-bn button.chon { border-color: var(--xanh); background: var(--xanh-nhat); }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px; }
.tabs button { background: #fff; color: var(--xanh); border: 1px solid var(--vien); }
.tabs button.chon { background: var(--xanh); color: #fff; border-color: var(--xanh); }
.chat { display: flex; flex-direction: column; gap: 6px; max-height: 55vh; overflow-y: auto; padding: 4px; }
.tin { max-width: 80%; padding: 8px 12px; border-radius: 14px; white-space: pre-wrap; word-wrap: break-word; }
.tin .gio-tin { display: block; font-size: 11px; color: var(--xam); margin-top: 2px; }
.tin.toi { align-self: flex-end; background: var(--xanh); color: #fff; border-bottom-right-radius: 4px; }
.tin.toi .gio-tin { color: #d1fadf; }
.tin.ho { align-self: flex-start; background: #fff; border: 1px solid var(--vien); border-bottom-left-radius: 4px; }
.tin.he_thong { align-self: center; background: #fffaeb; border: 1px solid #fedf89; font-size: 14px; max-width: 95%; }
.o-gui { display: flex; gap: 8px; margin-top: 8px; }
.o-gui textarea { min-height: 48px; }
.canh-bao-115 { background: #fee4e2; color: var(--do); border-radius: 8px; padding: 8px 12px; font-size: 14px; margin-bottom: 10px; }
.bieu-do { width: 100%; height: 120px; }
.cong-tac { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid #eaecf0; }
.cong-tac input { width: auto; transform: scale(1.4); }
.qr { text-align: center; }
.qr img { width: 220px; height: 220px; image-rendering: pixelated; }
.an { display: none !important; }
.slot { display: inline-block; margin: 3px; }
pre.json { background: #101828; color: #d0d5dd; padding: 10px; border-radius: 8px; font-size: 12px; overflow: auto; max-height: 300px; }
@media print { header, .tabs, .khong-in, button { display: none !important; } .the { border: 0; } }
@media (max-width: 600px) { header h1 { font-size: 16px; flex-basis: 100%; } header .gio { font-size: 13px; } }
a.nut { display: inline-block; padding: 9px 16px; border-radius: 8px; background: var(--xanh); color: #fff; text-decoration: none; }