/* public/css/sop.css — kho SOP (C4.1): 3 cột desktop, 1 cột ≤ 720 px (thư mục → tài liệu → chi tiết). Màu từ mau.css. */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { font: 15px/1.45 var(--sans); color: var(--chu); background: var(--nen); display: flex; flex-direction: column; }
button, input { font: inherit; }
[hidden] { display: none !important; }
.dau { display: flex; align-items: center; gap: 14px; padding: 10px 16px; padding-top: calc(10px + env(safe-area-inset-top, 0px)); background: var(--navy); color: #fff; }
.dau strong { flex: 1; }
.ve { color: #fff; text-decoration: none; opacity: .9; min-height: var(--cham); display: inline-flex; align-items: center; }
.toi { font-size: 13px; opacity: .85; }
.bao { margin: 8px 16px 0; padding: 8px 12px; border-radius: 10px; background: var(--xanh-nhat); color: var(--xanh); font-weight: 600; }
.bao.loi { background: var(--do-nhat); color: var(--do); }
.nut { min-height: var(--cham); padding: 0 14px; border: 1px solid var(--vien-dam); border-radius: 10px; background: var(--giay); color: var(--chu); cursor: pointer; }
.nut-chinh { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 600; }
.nut-nho { min-height: 36px; padding: 0 10px; }
.app { flex: 1; min-height: 0; display: grid; grid-template-columns: 240px 320px 1fr; }
.cot { min-height: 0; overflow-y: auto; border-right: 1px solid var(--vien); background: var(--giay); }
.cot-chi-tiet { background: var(--nen); border-right: 0; }
.cot h2 { font-size: 15px; margin: 0; padding: 12px 14px; color: var(--navy); }
.cot-dau { display: flex; align-items: center; gap: 8px; padding: 0 14px 0 0; border-bottom: 1px solid var(--vien); min-height: 52px; }
.cot-dau h2 { flex: 1; }
.cot-dau .ten { flex: 1; padding: 10px 14px; }
.cot-dau .ten h2 { padding: 0; }
.mo { margin: 2px 0 0; color: var(--chu-mo); font-size: 13px; }
.ds { list-style: none; margin: 0; padding: 6px; display: grid; gap: 2px; }
.ds li { display: grid; gap: 2px; padding: 10px 12px; border-radius: 10px; cursor: pointer; min-height: var(--cham); }
.ds li:hover { background: var(--nen); }
.ds li.chon { background: var(--vang-nhat); }
.ds .ten-muc { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ds .phu { font-size: 12px; color: var(--chu-mo); display: flex; gap: 8px; flex-wrap: wrap; }
.the { font-size: 11px; padding: 1px 7px; border-radius: 9px; background: var(--vang-nhat); color: var(--vang-dam); font-weight: 700; }
.the.cu { background: var(--vien); color: var(--chu-mo); }
.the.hien-hanh { background: var(--xanh-nhat); color: var(--xanh-dam); }
.trong { color: var(--chu-mo); padding: 24px 16px; text-align: center; }
.form-dang { display: grid; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--vien); background: var(--vang-nhat); }
.form-dang input[type=text] { min-height: var(--cham); padding: 0 12px; border: 1px solid var(--vien-dam); border-radius: 10px; }
.form-dang .hang { display: flex; gap: 8px; }
.xem { margin: 14px; background: var(--giay); border: 1px solid var(--vien); border-radius: var(--bo); min-height: 200px; display: grid; place-items: center; overflow: hidden; }
.xem iframe { width: 100%; height: min(70vh, 720px); border: 0; }
.xem img { max-width: 100%; max-height: 70vh; }
.xem .tai-ve { padding: 32px; text-align: center; display: grid; gap: 10px; justify-items: center; }
.phien-ban { margin: 0 14px 24px; }
.hang-dau { display: flex; align-items: center; gap: 8px; }
.hang-dau h3 { flex: 1; font-size: 15px; margin: 8px 0; color: var(--navy); }
.ds-pb { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.ds-pb li { background: var(--giay); border: 1px solid var(--vien); border-radius: 10px; padding: 10px 12px; display: grid; grid-template-columns: auto 1fr auto; gap: 2px 10px; align-items: center; }
.ds-pb li.dang-xem { border-color: var(--vang); }
.ds-pb .so { font-weight: 700; font-size: 16px; color: var(--navy); grid-row: 1 / span 2; }
.ds-pb .ghi-chu { grid-column: 2; font-size: 13px; color: var(--chu-mo); }
.ds-pb .hanh { grid-row: 1 / span 2; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.ds-pb .hanh a { text-decoration: none; display: inline-flex; align-items: center; }
.can-xac-nhan { background: var(--vang-nhat); border-bottom: 1px solid var(--vien); padding-bottom: 6px; }
.can-xac-nhan h2 { display: flex; align-items: center; gap: 8px; }
.trong.nho { padding: 8px 16px; font-size: 13px; }
.chon-o { display: flex; gap: 8px; align-items: center; font-size: 13px; min-height: var(--cham); }
.form-dang select { min-height: var(--cham); padding: 0 10px; border: 1px solid var(--vien-dam); border-radius: 10px; background: var(--giay); }
.ds-pb .chua-doc { grid-column: 2 / span 2; font-size: 13px; color: var(--do); }
.chi-mobile { display: none; }
@media (max-width: 720px) {
  .app { grid-template-columns: 1fr; }
  .cot { display: none; border-right: 0; }
  .app[data-man="thu-muc"] .cot-thu-muc, .app[data-man="tai-lieu"] .cot-tai-lieu, .app[data-man="chi-tiet"] .cot-chi-tiet { display: block; }
  .chi-mobile { display: inline-flex; align-items: center; justify-content: center; width: var(--cham); font-size: 22px; margin-left: 6px; }
  .xem iframe { height: 60vh; }
}