/* utnu.vn — màu lấy từ logo Út Nữ. Không dùng font ngoài, không inline style (CSP chặt). */
:root {
  --xanh: #0f7a3e;
  --xanh-dam: #0a5a2d;
  --xanh-nhat: #e9f5ee;
  --do: #d9262e;
  --vang: #ffd400;
  --chu: #1b2420;
  --chu-phu: #4d5a53;
  --vien: #d9e2dc;
  --nen: #ffffff;
  --nen-phu: #f6f8f6;
  --bo: 12px;
  --rong: 1120px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --xanh: #3fbf74;
    --xanh-dam: #6fd697;
    --xanh-nhat: #15281d;
    --chu: #e6ece8;
    --chu-phu: #a9b6ae;
    --vien: #2c3a32;
    --nen: #111714;
    --nen-phu: #18201b;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--chu);
  background: var(--nen);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--xanh); }
a:hover { color: var(--xanh-dam); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); }
h2 { font-size: clamp(1.3rem, 3vw, 1.7rem); margin-top: 1.6em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--vang); outline-offset: 2px; }

.khung { max-width: var(--rong); margin: 0 auto; padding: 0 16px; }
.bo-qua { position: absolute; left: -9999px; }
.bo-qua:focus { left: 16px; top: 8px; background: var(--nen); padding: 8px 12px; z-index: 10; }

/* ── Đầu trang ── */
.dau {
  border-bottom: 1px solid var(--vien);
  background: var(--nen);
}
.dau .khung {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding-top: 10px; padding-bottom: 10px;
}
.thuong-hieu { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--chu); font-weight: 700; }
.thuong-hieu img { width: 40px; }
.thuong-hieu span { font-size: 1.05rem; letter-spacing: .02em; }
.menu { margin-left: auto; }
.menu ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.menu a {
  display: block; padding: 8px 10px; border-radius: 8px;
  text-decoration: none; color: var(--chu); font-weight: 500;
}
.menu a:hover, .menu a[aria-current="page"] { background: var(--xanh-nhat); color: var(--xanh-dam); }
@media (max-width: 760px) {
  .menu { margin-left: 0; width: 100%; overflow-x: auto; }
  .menu ul { flex-wrap: nowrap; }
  .menu a { white-space: nowrap; font-size: .95rem; }
}

/* ── Nút ── */
.nut {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px; font-weight: 700;
  text-decoration: none; border: 2px solid var(--xanh);
}
.nut-chinh { background: var(--xanh); color: #fff; }
.nut-chinh:hover { background: var(--xanh-dam); border-color: var(--xanh-dam); color: #fff; }
.nut-phu { color: var(--xanh); background: transparent; }
.hang-nut { display: flex; gap: 12px; flex-wrap: wrap; margin: 1em 0; }

/* ── Trang chủ ── */
.mo-dau {
  background: linear-gradient(135deg, var(--xanh-nhat), var(--nen));
  border-bottom: 1px solid var(--vien);
  padding: 40px 0;
}
.mo-dau .khung { display: grid; grid-template-columns: 1fr 160px; gap: 32px; align-items: center; }
.mo-dau img { width: 160px; }
.mo-dau .phu { font-size: 1.1rem; color: var(--chu-phu); max-width: 60ch; }
@media (max-width: 640px) {
  .mo-dau .khung { grid-template-columns: 1fr; }
  .mo-dau img { width: 96px; order: -1; }
}

.so-lieu { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 24px 0 0; }
.so-lieu div { background: var(--nen); border: 1px solid var(--vien); border-radius: var(--bo); padding: 12px 16px; }
.so-lieu dt { font-size: .85rem; color: var(--chu-phu); }
.so-lieu dd { margin: 0; font-weight: 700; }

.luoi { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.the {
  border: 1px solid var(--vien); border-radius: var(--bo); overflow: hidden;
  background: var(--nen); display: flex; flex-direction: column;
}
.the img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.the .noi { padding: 14px 16px; }
.the h3 { margin-bottom: .3em; }
.the p { color: var(--chu-phu); margin: 0; }

.logo-nm { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 12px; list-style: none; padding: 0; margin: 0; }
.logo-nm li {
  background: #fff; border: 1px solid var(--vien); border-radius: var(--bo);
  padding: 12px; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
}
.logo-nm img { height: 72px; width: auto; object-fit: contain; }
.logo-nm span { font-size: .85rem; color: #333; }

.muc { padding: 8px 0 32px; }
.muc-nen { background: var(--nen-phu); border-top: 1px solid var(--vien); border-bottom: 1px solid var(--vien); }

/* ── Sản phẩm ── */
.bo-loc { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; margin: 16px 0; padding: 12px; background: var(--nen-phu); border-radius: var(--bo); }
.bo-loc[hidden] { display: none; }
.bo-loc label { display: flex; flex-direction: column; font-size: .9rem; gap: 4px; }
.bo-loc select, .bo-loc input {
  font: inherit; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--vien);
  background: var(--nen); color: var(--chu); min-width: 180px;
}
.dem { color: var(--chu-phu); font-size: .9rem; }

.bang-sp { width: 100%; border-collapse: collapse; }
.bang-sp th, .bang-sp td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--vien); vertical-align: top; }
.bang-sp th { font-size: .85rem; color: var(--chu-phu); font-weight: 600; }
.bang-sp tr[hidden] { display: none !important; }
.bang-sp td:nth-child(3) { white-space: nowrap; font-variant-numeric: tabular-nums; }
@media (max-width: 640px) {
  .bang-sp thead { display: none; }
  .bang-sp tr { display: block; padding: 10px 0; border-bottom: 1px solid var(--vien); }
  .bang-sp td { display: block; border: 0; padding: 2px 0; }
  .bang-sp td:nth-child(n+2) { font-size: .92rem; color: var(--chu-phu); }
}

.nhan { display: inline-block; font-size: .8rem; padding: 2px 8px; border-radius: 999px; background: var(--xanh-nhat); color: var(--xanh-dam); margin: 0 4px 4px 0; }

.thong-so { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 16px 0; }
.thong-so dt { color: var(--chu-phu); }
.thong-so dd { margin: 0; font-weight: 600; }
.npk { display: flex; gap: 8px; margin: 16px 0; }
.npk div { flex: 1; max-width: 120px; text-align: center; padding: 12px 8px; border-radius: var(--bo); background: var(--xanh-nhat); }
.npk b { display: block; font-size: 1.6rem; color: var(--xanh-dam); }
.npk small { color: var(--chu-phu); }

.luu-y { border-left: 4px solid var(--vang); background: var(--nen-phu); padding: 12px 16px; border-radius: 0 var(--bo) var(--bo) 0; }

/* ── Đường dẫn ── */
.duong-dan { font-size: .9rem; margin: 16px 0 8px; color: var(--chu-phu); }
.duong-dan ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.duong-dan li + li::before { content: "›"; margin-right: 6px; }

/* ── Hỏi đáp ── */
.hoi-dap details { border: 1px solid var(--vien); border-radius: var(--bo); padding: 12px 16px; margin-bottom: 10px; background: var(--nen); }
.hoi-dap summary { font-weight: 700; cursor: pointer; }
.hoi-dap details[open] summary { margin-bottom: 8px; }

/* ── Liên hệ ── */
.lien-he { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 760px) { .lien-he { grid-template-columns: 1fr; } }
.ban-do { width: 100%; aspect-ratio: 4 / 3; border: 1px solid var(--vien); border-radius: var(--bo); }
address { font-style: normal; }

/* ── Bài viết ── */
.bai { max-width: 72ch; }
.bai img { border-radius: var(--bo); margin: 16px 0; }
.ngay { color: var(--chu-phu); font-size: .9rem; }
.ds-bai { list-style: none; padding: 0; }
.ds-bai li { padding: 14px 0; border-bottom: 1px solid var(--vien); }
.trong { color: var(--chu-phu); padding: 24px; background: var(--nen-phu); border-radius: var(--bo); }

/* ── Chân trang ── */
.chan { margin-top: 48px; background: var(--xanh-dam); color: #eef6f1; padding: 32px 0 96px; font-size: .95rem; }
@media (prefers-color-scheme: dark) { .chan { background: #0b1510; } }
.chan a { color: #fff; }
.chan .khung { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; }
@media (max-width: 760px) { .chan .khung { grid-template-columns: 1fr; } }
.chan h2 { font-size: 1rem; margin: 0 0 8px; color: #fff; }
.chan ul { list-style: none; padding: 0; margin: 0; }
.chan li { margin-bottom: 4px; }
.cap-nhat { opacity: .8; font-size: .85rem; }

/* ── Thanh gọi nhanh trên điện thoại ── */
.goi-nhanh { display: none; }
@media (max-width: 760px) {
  .goi-nhanh {
    display: grid; grid-template-columns: 1fr 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 5;
    border-top: 1px solid var(--vien); background: var(--nen);
  }
  .goi-nhanh a { text-align: center; padding: 14px 8px; font-weight: 700; text-decoration: none; }
  .goi-nhanh a:first-child { background: var(--xanh); color: #fff; }
}

/* ── Lối vào cho nhân viên ── */
.menu a.nut-nv {
  border: 1px solid var(--vien); color: var(--chu-phu); font-size: .9rem; padding: 6px 12px; border-radius: 999px;
}
.menu a.nut-nv:hover { border-color: var(--xanh); color: var(--xanh-dam); background: transparent; }
@media (max-width: 760px) { .menu a.nut-nv { font-size: .9rem; } }

.hop-nv {
  width: min(92vw, 30rem); padding: 20px 22px; border: 1px solid var(--vien); border-radius: var(--bo);
  background: var(--nen); color: var(--chu);
}
.hop-nv::backdrop { background: rgba(10, 25, 15, .55); }
.hop-nv h2 { margin-top: 0; }
.hop-nv .hang-nut { margin-bottom: 0; }
.hop-nv button.nut { font: inherit; cursor: pointer; background: transparent; }

/* ── Chuyển ngôn ngữ ── */
.thuong-hieu { order: 1; }
.menu { order: 2; }
.ngon-ngu { order: 3; display: flex; gap: 2px; padding: 3px; border: 1px solid var(--vien); border-radius: 999px; }
.ngon-ngu a {
  display: block; min-width: 34px; padding: 5px 9px; border-radius: 999px; text-align: center;
  font-size: .85rem; font-weight: 600; line-height: 1.3; text-decoration: none; color: var(--chu-phu);
}
.ngon-ngu a:hover { background: var(--xanh-nhat); color: var(--xanh-dam); }
.ngon-ngu a[aria-current="true"] { background: var(--xanh); color: #fff; }
@media (max-width: 760px) {
  .ngon-ngu { order: 2; margin-left: auto; }
  .menu { order: 3; }
}

/* ── Phông chữ hệ thống cho tiếng Trung và tiếng Khmer (không tải phông ngoài) ── */
:lang(zh) body, body:lang(zh) {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", system-ui, sans-serif;
  line-height: 1.75;
}
:lang(km) body, body:lang(km) {
  font-family: "Khmer UI", "Leelawadee UI", "Noto Sans Khmer", "Khmer Sangam MN", "Hanuman", system-ui, sans-serif;
  line-height: 1.9;
}
html:lang(zh) body { font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", system-ui, sans-serif; line-height: 1.75; }
html:lang(km) body { font-family: "Khmer UI", "Leelawadee UI", "Noto Sans Khmer", "Khmer Sangam MN", "Hanuman", system-ui, sans-serif; line-height: 1.9; }
html:lang(km) h1, html:lang(km) h2, html:lang(km) h3 { line-height: 1.6; }
html:lang(zh) h1, html:lang(zh) h2, html:lang(zh) h3 { line-height: 1.4; }

/* Khối liên hệ báo giá trên trang sản phẩm (thay cho dòng ghi giá) */
.bao-gia { background: var(--nen-phu, #f3f7f2); border: 1px solid var(--vien, #d5e3d2); border-radius: 12px; padding: 4px 16px 0; margin: 20px 0; }
.bao-gia p { margin: 12px 0 0; font-weight: 600; }

/* Ảnh sản phẩm dọc 9:16 — mặt trước, mặt sau, hạt */
.anh-sp { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 200px)); gap: 12px; margin: 16px 0; }
.anh-sp figure { margin: 0; }
.anh-sp img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; border-radius: var(--bo); background: var(--nen-phu); border: 1px solid var(--vien); }
.anh-sp figcaption { font-size: .85rem; color: var(--chu-phu); text-align: center; margin-top: 6px; }
@media (max-width: 480px) { .anh-sp { grid-template-columns: repeat(3, 1fr); gap: 8px; } }
.chan .chan-cuoi { display: block; margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .25); font-size: .85rem; }
.chan .chinh-sach { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 0 0 8px; }
.chan .chinh-sach li { margin: 0; }
.chan .canh-bao { margin: 0; opacity: .85; line-height: 1.5; }
.chinh-sach-noi-dung { max-width: 760px; }