/* Trang bán hàng: danh mục, sản phẩm, giỏ, thanh toán, tra mã, tra đơn */
.ban { background: var(--nga-sang); }
.ban main { min-height: 60vh; }
.tieu-trang { padding-block: 40px 24px; }
.tieu-trang h1 { font-size: clamp(40px, 6vw, 72px); }
.tieu-trang p { margin: 8px 0 0; color: var(--chu-phu); font-size: 17px; }

/* danh mục */
.loc { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-block: 14px; border-top: 1px solid var(--muc); border-bottom: 1px solid var(--vien); }
.loc .nhom { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.loc button, .nguoi-nhan button { flex: none; min-height: 44px; padding: 0 16px; border-radius: var(--tron); border: 1px solid #CFC5B1; background: none; cursor: pointer; }
.loc button[aria-pressed="true"], .nguoi-nhan button[aria-pressed="true"] { background: var(--muc); color: var(--nga); border-color: var(--muc); }
.nguoi-nhan { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 16px; }
.nguoi-nhan span { font-size: 14px; font-weight: 600; margin-right: 4px; }
.goi-y-nguoi { margin: 12px 0 0; font-size: 15px; color: var(--chu-phu); min-height: 1.6em; }
.luoi { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 28px; padding-block: 32px 64px; }
.the-sp { display: flex; flex-direction: column; gap: 10px; }
.the-sp .anh { position: relative; aspect-ratio: 1; background: #E6DDCB; overflow: hidden; display: flex; align-items: center; justify-content: center; color: var(--chu-phu); font-size: 14px; }
.the-sp .anh img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--nhanh); }
.the-sp:hover .anh img { transform: scale(1.04); }
.the-sp .het { position: absolute; left: 12px; top: 12px; background: var(--chu-sa); color: #fff; font-size: 12px; padding: 4px 10px; border-radius: var(--tron); }
.the-sp .dong1 { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.the-sp b { font-size: 18px; font-weight: 600; }
.the-sp .gia { font-weight: 700; font-size: 18px; white-space: nowrap; }
.the-sp .qc { font-size: 14px; color: var(--chu-phu); }
.the-sp .them { min-height: 48px; }
.dai-gia-tri { background: var(--muc); color: var(--nga); padding: 40px; display: grid; grid-template-columns: 1fr 2fr; gap: 40px; margin-bottom: 24px; }
.dai-gia-tri .bon { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; font-size: 15px; color: var(--chu-phu-toi); }
.dai-gia-tri .bon b { display: block; color: var(--nga); font-size: 17px; margin-bottom: 4px; }
.cam-ket { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--vien); margin-bottom: 64px; }
.cam-ket div { padding: 20px 22px; font-size: 14px; color: var(--chu-phu); }
.cam-ket div + div { border-left: 1px solid var(--vien); }
.cam-ket b { display: block; color: var(--muc); font-size: 16px; }

/* trang sản phẩm */
.duong { padding-block: 18px; font-size: 14px; color: var(--chu-phu); }
.sp-tren { display: grid; grid-template-columns: 7fr 5fr; gap: 56px; align-items: start; }
.bo-anh { display: grid; grid-template-columns: 88px 1fr; gap: 14px; position: sticky; top: 92px; }
.bo-anh .nho { display: flex; flex-direction: column; gap: 10px; }
.bo-anh .nho button { padding: 0; border: 0; background: none; cursor: pointer; opacity: .65; }
.bo-anh .nho button[aria-current] { opacity: 1; outline: 2px solid var(--muc); outline-offset: 2px; }
.bo-anh .nho img { width: 88px; height: 88px; object-fit: cover; }
.bo-anh .chinh { aspect-ratio: 1; background: #E6DDCB; overflow: hidden; display: flex; align-items: center; justify-content: center; color: var(--chu-phu); }
.bo-anh .chinh img { width: 100%; height: 100%; object-fit: cover; }
.thong-tin { display: flex; flex-direction: column; gap: 18px; padding-bottom: 32px; }
.thong-tin h1 { font-size: clamp(36px, 4vw, 56px); }
.thong-tin .mo { margin: 0; font-size: 17px; }
.chon-qc { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.chon-qc button { min-height: 64px; border: 1px solid #CFC5B1; background: #fff; text-align: left; padding: 10px 14px; cursor: pointer; border-radius: 10px; }
.chon-qc button[aria-pressed="true"] { border: 2px solid var(--muc); background: var(--nga); }
.chon-qc button[disabled] { opacity: .5; text-decoration: line-through; }
.chon-qc b { display: block; }
.chon-qc span { font-size: 13px; color: var(--chu-phu); }
.gia-lon { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.gia-lon strong { font-size: clamp(32px, 3.4vw, 44px); }
.gia-lon span { color: var(--chu-phu); font-size: 15px; }
.mua { display: flex; gap: 12px; }
.so-luong { display: flex; border: 1px solid var(--muc); border-radius: var(--tron); overflow: hidden; flex: none; }
.so-luong button { width: 48px; border: 0; background: none; font-size: 20px; cursor: pointer; }
.so-luong output, .so-luong span { width: 40px; display: flex; align-items: center; justify-content: center; font-weight: 600; }
.mua .nut { flex: 1; min-height: 56px; }
.ghi-giao { background: var(--nga); padding: 16px 20px; font-size: 15px; line-height: 1.7; border-radius: 10px; }
.ba-o { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; font-size: 13px; text-align: center; }
.ba-o span { border: 1px solid var(--vien); padding: 12px 8px; }
.ba-o b { display: block; font-size: 14px; }
.bao-gia .mua, .bao-gia .so-luong, .bao-gia .chon-qc { display: none; }
.phan { padding-block: 72px 0; }
.phan h2 { font-size: clamp(32px, 3.6vw, 52px); margin-bottom: 28px; }
.gia-tri { background: var(--muc); color: var(--nga); margin-top: 72px; }
.gia-tri .khung { padding-block: 72px; }
.gia-tri .bon { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.gia-tri .bon div { border-top: 1px solid var(--que); padding-top: 18px; }
.gia-tri .bon > div > span { color: var(--que); font-size: 14px; }
.gia-tri h3 { font-size: 26px; margin: 8px 0; }
.gia-tri p { margin: 0; color: var(--chu-phu-toi); font-size: 15px; }
.bang-chung { background: var(--nga); }
.bang-chung .khung { padding-block: 72px; display: grid; grid-template-columns: 4fr 5fr 3fr; gap: 24px; }
.bang-chung h2 { grid-column: 1 / -1; margin: 0; font-size: clamp(32px, 3.6vw, 52px); }
.gia-tri .cho-tro, .the-lo .cho-tro, .toi-trang .cho-tro { color: #F0B4A8; }
.bang-chung .the-lo { background: var(--muc); color: var(--nga); padding: 28px; display: flex; flex-direction: column; gap: 10px; }
.bang-chung .the-lo strong { font-family: var(--serif); font-weight: 400; font-size: 32px; }
.bang-chung .the-lo dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 15px; color: var(--chu-phu-toi); }
.bang-chung .the-lo dd { margin: 0; color: var(--nga); }
.bang-chung .cho { display: flex; align-items: center; justify-content: center; text-align: center; background: #E6DDCB; min-height: 260px; padding: 20px; color: var(--chu-phu); }
.bang-chung .cho.toi { background: var(--muc); color: var(--chu-phu-toi); }
.bang-chung .chip-gt { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; }
.bang-chung .chip-gt span { padding: 10px 16px; border: 1px solid var(--muc); border-radius: var(--tron); font-size: 14px; }
.buoc { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--muc); }
.buoc li { padding: 20px 20px 0 0; font-size: 15px; }
.buoc li + li { border-left: 1px solid var(--vien); padding-left: 20px; }
.buoc b { display: block; font-size: 18px; margin: 4px 0; }
.buoc span:first-child { font-size: 14px; color: var(--que-dam); }
.so-sanh { overflow-x: auto; }
.so-sanh table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 15px; }
.so-sanh th, .so-sanh td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--vien); }
.so-sanh thead th { border-bottom: 1px solid var(--muc); }
.so-sanh .dang { background: var(--nga); }
.so-sanh i { display: inline-block; width: 14px; height: 14px; vertical-align: -2px; margin-right: 6px; border: 1px solid rgba(0,0,0,.08); }
.hoi details { border-top: 1px solid var(--vien); }
.hoi details:last-child { border-bottom: 1px solid var(--vien); }
.hoi summary { min-height: 60px; display: flex; align-items: center; justify-content: space-between; font-weight: 600; font-size: 17px; cursor: pointer; list-style: none; }
.hoi summary::after { content: '+'; font-size: 22px; }
.hoi details[open] summary::after { content: '−'; }
.hoi p { margin: 0 0 18px; }
.lien-quan { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-bottom: 72px; }
.lien-quan img { aspect-ratio: 1; object-fit: cover; width: 100%; margin-bottom: 10px; }
.lien-quan b { display: block; font-weight: 600; }
.thanh-mua { display: none; }

/* giỏ, thanh toán */
.buoc-mua { display: flex; gap: 10px; align-items: center; font-size: 15px; color: var(--chu-phu); list-style: none; margin: 0; padding: 0; }
.buoc-mua [aria-current] { color: var(--muc); font-weight: 700; }
.hai-cot { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: start; padding-bottom: 72px; }
.dong-gio { display: grid; grid-template-columns: 120px 1fr auto; gap: 20px; padding: 22px 0; border-top: 1px solid var(--vien); }
.dong-gio img { width: 120px; height: 120px; object-fit: cover; }
.dong-gio b { font-size: 18px; font-weight: 600; }
.dong-gio select { height: 44px; border: 1px solid #CFC5B1; background: #fff; padding: 0 10px; border-radius: 8px; }
.dong-gio .xoa { border: 0; background: none; text-decoration: underline; cursor: pointer; padding: 10px 0; font-size: 14px; }
.dong-gio .tien { font-weight: 700; font-size: 18px; white-space: nowrap; }
.tom-tat { background: var(--muc); color: var(--nga); padding: 28px; display: flex; flex-direction: column; gap: 12px; position: sticky; top: 92px; border-radius: 4px; }
.tom-tat h2 { font-size: 30px; }
.tom-tat .h { display: flex; justify-content: space-between; gap: 12px; }
.tom-tat .tong { border-top: 1px solid #4A5A66; padding-top: 14px; align-items: baseline; }
.tom-tat .tong strong { font-size: 32px; color: var(--que); }
.tom-tat .phu { font-size: 14px; color: var(--chu-phu-toi); }
.ma-giam { display: flex; gap: 8px; }
.ma-giam input { flex: 1; min-width: 0; height: 48px; border: 1px solid #4A5A66; background: transparent; color: var(--nga); padding: 0 14px; }
.ma-giam button { height: 48px; padding: 0 16px; border: 1px solid var(--que); background: none; color: var(--que); font-weight: 600; cursor: pointer; }
.cam-ket-nho { border: 1px solid var(--vien); padding: 20px 22px; font-size: 14px; line-height: 1.6; display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.trong { padding: 48px 0; text-align: center; }
.form { display: flex; flex-direction: column; gap: 36px; }
.form fieldset { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.form legend { font-size: 20px; font-weight: 700; margin-bottom: 14px; }
.o-nhap { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 500; }
.o-nhap input, .o-nhap select, .o-nhap textarea { min-height: 52px; border: 1px solid #9AA3A9; background: #fff; padding: 0 14px; font-size: 16px; border-radius: 8px; }
.o-nhap textarea { min-height: 84px; padding: 12px 14px; }
.o-nhap [aria-invalid="true"] { border-color: var(--chu-sa); }
.loi { color: var(--chu-sa); font-size: 14px; font-weight: 500; }
.hai { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.lua-chon { display: flex; gap: 12px; align-items: flex-start; border: 1px solid #CFC5B1; background: #fff; padding: 16px; border-radius: 10px; cursor: pointer; }
.lua-chon:has(input:checked) { border: 2px solid var(--muc); background: var(--nga); }
.lua-chon input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; }
.lua-chon span span { font-size: 14px; color: var(--chu-phu); }
.dong-y { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.5; }
.dong-y input { width: 22px; height: 22px; margin: 0; flex: none; }
.bay { position: absolute; left: -9999px; }

/* tra mã, tra đơn, xác nhận */
.toi-trang { background: var(--muc); color: var(--nga); }
.o-tra { display: flex; gap: 10px; max-width: 720px; margin: 24px auto 0; }
.o-tra input { flex: 1; min-width: 0; height: 60px; border: 1px solid var(--nga); background: transparent; color: var(--nga); padding: 0 20px; font-size: 20px; letter-spacing: .05em; }
.ket-qua { margin-top: 40px; }
.the-kq { background: var(--giay); color: var(--muc); padding: 32px; }
.the-kq dl { display: grid; grid-template-columns: 170px 1fr; gap: 10px 16px; margin: 16px 0 0; font-size: 16px; }
.the-kq dt { color: var(--chu-phu); } .the-kq dd { margin: 0; }
.moc { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); font-size: 14px; }
.moc li { border-top: 4px solid var(--vien); padding: 12px 8px 0 0; color: var(--chu-phu); }
.moc li.xong { border-color: var(--lam); color: var(--muc); }

@media (max-width: 900px) {
  .loc > span { display: none; }
  .luoi { grid-template-columns: 1fr 1fr; gap: 24px 12px; padding-block: 20px 48px; }
  .the-sp b { font-size: 15px; } .the-sp .gia { font-size: 15px; } .the-sp .dong1 { flex-direction: column; gap: 2px; }
  .the-sp .them { min-height: 44px; font-size: 14px; padding: 0 10px; }
  .dai-gia-tri { grid-template-columns: 1fr; padding: 28px 20px; } .dai-gia-tri .bon { grid-template-columns: 1fr 1fr; }
  .cam-ket { grid-template-columns: 1fr 1fr; } .cam-ket div:nth-child(3) { border-left: 0; } .cam-ket div:nth-child(n+3) { border-top: 1px solid var(--vien); }
  .sp-tren { grid-template-columns: 1fr; gap: 20px; }
  .bo-anh { grid-template-columns: 1fr; position: static; margin-inline: calc(var(--le) * -1); }
  .bo-anh .nho { flex-direction: row; order: 2; padding-inline: var(--le); overflow-x: auto; }
  .bo-anh .nho img { width: 64px; height: 64px; }
  .gia-tri .bon, .buoc, .lien-quan { grid-template-columns: 1fr 1fr; }
  .buoc li:nth-child(3) { border-left: 0; padding-left: 0; }
  .bang-chung .khung { grid-template-columns: 1fr; }
  .mua .nut-desk-mua { display: none; }
  .thanh-mua { display: flex; position: fixed; z-index: 45; left: 0; right: 0; bottom: 0; gap: 8px; align-items: center; padding: 12px 12px calc(12px + env(safe-area-inset-bottom)); background: var(--nga-sang); border-top: 1px solid var(--vien); box-shadow: 0 -6px 18px rgba(14,30,43,.08); }
  .thanh-mua .nut { flex: 1; min-height: 54px; padding: 0 12px; }
  .thanh-mua .zalo { flex: none; width: 54px; padding: 0; }
  .co-thanh-mua { padding-bottom: 96px; }
  .hai-cot { grid-template-columns: 1fr; gap: 24px; }
  .tom-tat { position: static; }
  .dong-gio { grid-template-columns: 88px 1fr; } .dong-gio img { width: 88px; height: 88px; } .dong-gio .tien { grid-column: 2; }
  .hai { grid-template-columns: 1fr; }
  .moc { grid-template-columns: 1fr; gap: 10px; } .moc li { border-top: 0; border-left: 4px solid var(--vien); padding: 0 0 0 12px; } .moc li.xong { border-color: var(--lam); }
  .the-kq dl { grid-template-columns: 1fr; gap: 2px; } .the-kq dd { margin-bottom: 10px; }
}