/* Bố cục: trang chủ = hero + 3 thẻ công cụ + lưới bài; công cụ = form trái, kết quả phải */
:root {
  --nen: #f4f2ee;
  --the: #ffffff;
  --chu: #1b1712;
  --chu-phu: #5a534a;
  --vien: #e1dcd3;
  --nhan: #c2410c;
  --nhan-chu: #ffffff;
  --nhan-nhat: #fbe6da;
  --tot: #1f7a4a;
  --tot-nhat: #dcefe3;
  --vua: #9a6700;
  --vua-nhat: #fbf0d3;
  --kem: #b42318;
  --kem-nhat: #fbe2df;
  --c1: #c2410c;
  --c2: #1f5fbf;
  --c3: #1f7a4a;
  --bong: 0 1px 2px rgba(40, 25, 10, .05), 0 6px 20px rgba(40, 25, 10, .05);
}
:root[data-theme="dark"] {
  --nen: #14110e;
  --the: #1e1a16;
  --chu: #f1ece5;
  --chu-phu: #b4aa9e;
  --vien: #37302a;
  --nhan: #fb8a4c;
  --nhan-chu: #1b0e05;
  --nhan-nhat: #3a2416;
  --tot: #6cc68f;
  --tot-nhat: #17301f;
  --vua: #e8b84a;
  --vua-nhat: #33280f;
  --kem: #f3877c;
  --kem-nhat: #3a1c19;
  --c1: #fb8a4c;
  --c2: #7fb0ff;
  --c3: #6cc68f;
  --bong: 0 1px 2px rgba(0, 0, 0, .35);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --nen: #14110e;
    --the: #1e1a16;
    --chu: #f1ece5;
    --chu-phu: #b4aa9e;
    --vien: #37302a;
    --nhan: #fb8a4c;
    --nhan-chu: #1b0e05;
    --nhan-nhat: #3a2416;
    --tot: #6cc68f;
    --tot-nhat: #17301f;
    --vua: #e8b84a;
    --vua-nhat: #33280f;
    --kem: #f3877c;
    --kem-nhat: #3a1c19;
    --c1: #fb8a4c;
    --c2: #7fb0ff;
    --c3: #6cc68f;
    --bong: 0 1px 2px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--nen); color: var(--chu);
  font-family: "Be Vietnam Pro", system-ui, sans-serif; font-size: 16px; line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; }
p a, li a, .goi-y a { color: var(--nhan); font-weight: 600; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--nhan); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

/* Thanh trên */
.top {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  display: flex; align-items: center; gap: 16px;
  padding: 10px clamp(16px, 4vw, 40px);
  background: color-mix(in srgb, var(--nen) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--vien);
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; letter-spacing: -.01em; white-space: nowrap; }
.logo-dau { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: var(--nhan); color: var(--nhan-chu); }
.logo-dau svg { width: 18px; height: 18px; }
.menu { display: flex; gap: 4px; margin-left: auto; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.menu::-webkit-scrollbar { display: none; }
.menu a { padding: 7px 12px; border-radius: 9px; text-decoration: none; font-size: 15px; font-weight: 600; color: var(--chu-phu); white-space: nowrap; }
.menu a:hover { color: var(--chu); background: var(--the); }
.menu a.dang { color: var(--chu); background: var(--nhan-nhat); }
.nut-icon { flex: none; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--vien); background: var(--the); display: grid; place-items: center; }
.nut-icon svg { width: 18px; height: 18px; }

main { max-width: 1120px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); min-height: 70vh; }

.the { background: var(--the); border: 1px solid var(--vien); border-radius: 16px; box-shadow: var(--bong); }

/* Trang chủ */
.hero { padding: clamp(40px, 7vw, 80px) 0 32px; display: grid; gap: 28px; grid-template-columns: 1.5fr 1fr; align-items: end; }
.hero h1 { font-size: clamp(32px, 5.5vw, 56px); line-height: 1.1; letter-spacing: -.03em; margin: 0 0 18px; font-weight: 800; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--nhan); }
.hero .mo { font-size: clamp(17px, 2vw, 19px); color: var(--chu-phu); margin: 0 0 24px; max-width: 34em; }
.hang-nut { display: flex; gap: 12px; flex-wrap: wrap; }
.nut {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 20px; border-radius: 12px;
  font-weight: 700; text-decoration: none; border: 1px solid transparent;
}
.nut-chinh { background: var(--nhan); color: var(--nhan-chu); }
.nut-chinh:hover { filter: brightness(1.07); }
.nut-phu { border-color: var(--vien); background: var(--the); }
.nut-phu:hover { border-color: var(--chu-phu); }
.nut-nho { padding: 5px 12px; border-radius: 8px; border: 1px solid var(--vien); background: transparent; font-size: 14px; font-weight: 600; }
.nut-nho:hover { border-color: var(--chu-phu); }

.the-tien-do { padding: 22px; }
.so-lon { font-size: 44px; font-weight: 800; letter-spacing: -.03em; line-height: 1; }
.so-lon small { font-size: 18px; color: var(--chu-phu); font-weight: 600; }
.thanh { height: 10px; border-radius: 99px; background: var(--vien); overflow: hidden; margin: 14px 0 10px; }
.thanh > span { display: block; height: 100%; background: var(--nhan); border-radius: 99px; transition: width .4s; }
.the-tien-do p { margin: 0; color: var(--chu-phu); font-size: 15px; }

.cong-cu { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; margin: 8px 0 48px; }
.cc { display: flex; flex-direction: column; gap: 6px; padding: 18px; text-decoration: none; transition: transform .15s, border-color .15s; }
.cc:hover { transform: translateY(-2px); border-color: var(--nhan); }
.cc b { font-size: 18px; }
.cc b::after { content: " →"; color: var(--nhan); }
.cc span { color: var(--chu-phu); font-size: 15px; }

.dau-trang { padding: 36px 0 20px; }
.dau-trang h1 { font-size: clamp(28px, 4.5vw, 40px); letter-spacing: -.025em; margin: 0 0 6px; line-height: 1.15; }
.dau-trang p { margin: 0; color: var(--chu-phu); max-width: 46em; }

.chang { margin-bottom: 40px; }
.chang-dau { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.nhan-chang { font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--mau); }
.chang h2 { margin: 0; font-size: clamp(22px, 3vw, 28px); letter-spacing: -.02em; }
.chang > p { color: var(--chu-phu); margin: 2px 0 14px; }
.luoi { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.o-bai {
  position: relative; display: flex; flex-direction: column; gap: 6px; min-height: 124px;
  padding: 16px; border-radius: 14px; background: var(--the); border: 1px solid var(--vien);
  text-decoration: none; transition: transform .15s, border-color .15s;
}
.o-bai:hover { transform: translateY(-2px); border-color: var(--mau); }
.o-bai .so { font-size: 13px; font-weight: 700; color: var(--mau); }
.o-bai .ten { font-weight: 700; line-height: 1.35; padding-right: 28px; }
.o-bai .gio { margin-top: auto; font-size: 13px; color: var(--chu-phu); }
.o-bai.xong { background: var(--tot-nhat); border-color: transparent; }
.o-bai.xong .so { color: var(--tot); }
.dau-xong { position: absolute; top: 14px; right: 14px; width: 24px; height: 24px; border-radius: 50%; background: var(--tot); color: var(--nen); display: grid; place-items: center; }
.dau-xong svg { width: 14px; height: 14px; }
.o-bai.tiep { border: 2px solid var(--mau); }

/* Trang bài */
.bai { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; padding: 32px 0 60px; }
.bai article { max-width: 720px; }
.muc-luc { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; }
.muc-luc h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .07em; color: var(--chu-phu); margin: 18px 0 6px; }
.muc-luc h3:first-child { margin-top: 0; }
.muc-luc a { display: flex; gap: 8px; align-items: baseline; padding: 5px 8px; border-radius: 8px; text-decoration: none; font-size: 14px; color: var(--chu-phu); line-height: 1.4; }
.muc-luc a:hover { background: var(--the); color: var(--chu); }
.muc-luc a.dang { background: var(--nhan-nhat); color: var(--chu); font-weight: 600; }
.ml-so { min-width: 20px; font-variant-numeric: tabular-nums; }
.muc-luc a.xong .ml-so { color: var(--tot); }
.duong { font-size: 14px; color: var(--chu-phu); margin-bottom: 8px; }
.duong a { text-decoration: none; }
.duong a:hover { text-decoration: underline; }
.bai-dau h1 { font-size: clamp(28px, 4.5vw, 40px); line-height: 1.15; letter-spacing: -.025em; margin: 0 0 12px; text-wrap: balance; }
.the-nho { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.the-nho span { font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 99px; background: var(--the); border: 1px solid var(--vien); }
.the-nho .nho-xong { background: var(--tot-nhat); color: var(--tot); border-color: transparent; }
.muc-tieu { background: var(--the); border: 1px solid var(--vien); border-left: 4px solid var(--nhan); border-radius: 12px; padding: 14px 18px; }
.muc-tieu b { display: block; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--nhan); }
.muc-tieu p { margin: 2px 0 0; font-size: 17px; font-weight: 600; }
.bai h2 { font-size: 21px; letter-spacing: -.015em; margin: 32px 0 12px; }
.y { margin: 0; padding-left: 20px; }
.y li { margin-bottom: 10px; }
.y li::marker { color: var(--nhan); }
.buoc { margin: 0; padding-left: 22px; }
.buoc li { margin-bottom: 10px; }
.buoc li::marker { font-weight: 800; }
.kiem { display: grid; gap: 8px; margin-bottom: 22px; }
.kiem label { display: flex; gap: 10px; align-items: flex-start; padding: 10px 14px; background: var(--the); border: 1px solid var(--vien); border-radius: 10px; cursor: pointer; }
.kiem input { margin-top: 5px; accent-color: var(--tot); width: 17px; height: 17px; flex: none; }
.kiem input:checked + span { color: var(--chu-phu); text-decoration: line-through; }
.chuyen { display: flex; justify-content: space-between; gap: 12px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--vien); }

/* Công cụ */
.cong-cu-bo { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 24px; align-items: start; padding-bottom: 60px; }
.bang-nhap { padding: 20px; display: grid; gap: 14px; position: sticky; top: 76px; }
.o-nhap { display: grid; gap: 5px; }
.o-nhap span { font-size: 14px; font-weight: 600; }
.o-nhap input, .o-nhap select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--vien); background: var(--nen); min-width: 0;
}
.o-nhap input:focus, .o-nhap select:focus, textarea:focus { outline: 2px solid var(--nhan); outline-offset: -1px; border-color: transparent; }
textarea { resize: vertical; line-height: 1.5; margin: 6px 0 10px; }
.hai { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: end; }
.goi-y { margin: -6px 0 0; font-size: 13px; color: var(--chu-phu); }
.o-chon { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; cursor: pointer; }
.o-chon input { margin-top: 4px; accent-color: var(--nhan); width: 17px; height: 17px; flex: none; }

.ket-qua { display: grid; gap: 14px; min-width: 0; }
.ket-qua > div[id] { display: grid; gap: 14px; }
.trong { padding: 40px 20px; text-align: center; color: var(--chu-phu); border-style: dashed; box-shadow: none; }
.canh-bao { padding: 14px 18px; background: var(--vua-nhat); border-color: transparent; color: var(--chu); }
.khoi { padding: 18px 20px; }
.khoi h3 { margin: 0 0 10px; font-size: 17px; }
.khoi-dau { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
.khoi-dau h3 { margin: 0; }
.phu { color: var(--chu-phu); font-size: 14px; }
.khoi .phu:last-child { margin-bottom: 0; }

.o-so { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.so-the { padding: 14px 16px; display: grid; gap: 2px; box-shadow: none; }
.so-the span { font-size: 13px; color: var(--chu-phu); font-weight: 600; }
.so-the b { font-size: 22px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.so-the small { font-size: 12px; color: var(--chu-phu); }
.so-the.nhan-the { border-color: var(--nhan); border-width: 2px; }
.so-the.tot { background: var(--tot-nhat); border-color: transparent; }
.so-the.tot b { color: var(--tot); }
.so-the.vua { background: var(--vua-nhat); border-color: transparent; }
.so-the.vua b { color: var(--vua); }
.so-the.kem { background: var(--kem-nhat); border-color: transparent; }
.so-the.kem b { color: var(--kem); }

.cau-truc { margin: 0; display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 12px 16px; }
.cau-truc dt { font-weight: 700; font-size: 14px; color: var(--nhan); }
.cau-truc dd { margin: 0; }
.lich { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.lich b { display: inline-block; min-width: 78px; }

.mo-dau { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.mo-dau li { padding: 10px 12px; border-radius: 10px; background: var(--nen); }
.nhan-goc { display: inline-block; font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 99px; background: var(--nhan-nhat); color: var(--chu); margin-right: 8px; }
.ban { margin: 0; white-space: pre-wrap; font-family: inherit; padding: 12px 14px; border-radius: 10px; background: var(--nen); }
.kb { width: 100%; border-collapse: collapse; }
.kb th, .kb td { text-align: left; vertical-align: top; padding: 9px 0; border-bottom: 1px solid var(--vien); }
.kb th { width: 104px; font-size: 14px; color: var(--nhan); white-space: nowrap; padding-right: 12px; }
.kb tr:last-child th, .kb tr:last-child td { border-bottom: 0; }

.ds-loi { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.ds-loi li { display: grid; gap: 2px; padding: 10px 14px; border-radius: 10px; border-left: 4px solid var(--vua); background: var(--vua-nhat); }
.ds-loi li.cao { border-left-color: var(--kem); background: var(--kem-nhat); }
.ds-loi span { font-size: 15px; color: var(--chu-phu); }
.kiem-ok { padding: 10px 14px; border-radius: 10px; background: var(--tot-nhat); color: var(--chu); font-size: 15px; }
.ket-luan { border-left: 4px solid var(--kem); }
.ket-luan.tot { border-left-color: var(--tot); }
.ket-luan p { margin: 0; }

/* Soát tài khoản */
.nhom-mo { margin: -4px 0 12px; }
.ds-soat { list-style: none; margin: 0; padding: 0; display: grid; }
.ds-soat li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 16px; align-items: center; padding: 12px 0; border-top: 1px solid var(--vien); }
.soat-chu { display: grid; gap: 2px; min-width: 0; }
.soat-chu span { font-size: 14px; color: var(--chu-phu); }
.chon-tt { display: flex; flex-wrap: wrap; gap: 4px; }
.chon-tt button { padding: 5px 10px; border-radius: 8px; border: 1px solid var(--vien); background: transparent; font-size: 13px; font-weight: 600; color: var(--chu-phu); white-space: nowrap; }
.chon-tt button:hover { border-color: var(--chu-phu); color: var(--chu); }
.chon-tt button.dang { color: var(--chu); border-color: transparent; }
.chon-tt .tt-dat.dang { background: var(--tot-nhat); color: var(--tot); }
.chon-tt .tt-chua.dang { background: var(--kem-nhat); color: var(--kem); }
.chon-tt .tt-kad.dang, .chon-tt .tt-ro.dang { background: var(--nen); border-color: var(--vien); }
#tomTatSoat h3 { margin: 6px 0 0; font-size: 16px; }
.dem-soat { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; color: var(--chu-phu); }
.kem-chu { color: var(--kem); font-weight: 700; }
.can-lam { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 15px; max-height: 50vh; overflow: auto; }
.can-lam .phu { display: block; font-size: 12px; }

/* Soi mẫu */
.buoc-soi { margin-bottom: 20px; display: grid; gap: 12px; }
.buoc-soi .khoi-dau { margin: 0; }
.buoc-soi p { margin: 0; }
.hang-nganh, .hang-tu { display: flex; flex-wrap: wrap; gap: 6px; }
.hang-tu a.nut-nho { text-decoration: none; }
.chip { padding: 6px 12px; border-radius: 99px; border: 1px solid var(--vien); background: transparent; font-size: 14px; font-weight: 600; color: var(--chu-phu); }
.chip:hover { border-color: var(--chu-phu); color: var(--chu); }
.chip.dang { background: var(--nhan); border-color: var(--nhan); color: var(--nhan-chu); }
.tu-rieng { display: inline-flex; gap: 6px; flex: 1 1 220px; min-width: 0; }
.tu-rieng input { flex: 1; min-width: 0; padding: 5px 10px; border-radius: 8px; border: 1px solid var(--vien); background: var(--nen); font-size: 14px; }
.tu-rieng a { text-decoration: none; }
.canh-bao.nho { padding: 8px 12px; font-size: 14px; box-shadow: none; }
.cach-xem summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.cach-xem .y { margin-top: 10px; }
.tieu-form { margin: 0; font-size: 17px; }
.tin-hieu { display: grid; gap: 4px; padding: 10px 12px; border-radius: 10px; background: var(--nen); }
.tin-hieu .phu { font-size: 13px; }
.nhan-tin { justify-self: start; font-size: 13px; font-weight: 700; padding: 2px 10px; border-radius: 99px; background: var(--nen); border: 1px solid var(--vien); color: var(--chu-phu); white-space: nowrap; }
.nhan-tin.tot { background: var(--tot-nhat); color: var(--tot); border-color: transparent; }
.nhan-tin.vua { background: var(--vua-nhat); color: var(--vua); border-color: transparent; }
.ket-luan-kho { padding: 12px 14px; border-radius: 10px; background: var(--nhan-nhat); margin: 12px 0; font-size: 15px; }
.ket-luan-kho .phu { display: block; margin-top: 4px; }
.ds-mau { list-style: none; margin: 12px 0; padding: 0; display: grid; gap: 10px; }
.ds-mau li { position: relative; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--vien); display: grid; gap: 6px; }
.ds-mau p { margin: 0; font-size: 15px; }
.mau-dau { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.mau-dau a { color: var(--nhan); }
.mau-the { display: flex; flex-wrap: wrap; gap: 6px; }
.mau-the span { font-size: 12px; font-weight: 600; padding: 1px 8px; border-radius: 6px; background: var(--nen); color: var(--chu-phu); }
.nut-xoa { justify-self: end; font-size: 13px; padding: 3px 10px; }
.trong-nho { padding: 20px; text-align: center; color: var(--chu-phu); border: 1px dashed var(--vien); border-radius: 12px; margin: 12px 0; }

/* Tài khoản, AI, gói */
.chip-tk { flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 99px; border: 1px solid var(--vien); background: var(--the); font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.chip-tk:hover { border-color: var(--nhan); }
.nhan-pro { font-size: 11px; font-weight: 800; letter-spacing: .04em; padding: 1px 7px; border-radius: 99px; background: var(--nhan); color: var(--nhan-chu); }
.nut:disabled { opacity: .55; cursor: not-allowed; }
.o-anh { display: grid; gap: 6px; padding-bottom: 12px; border-bottom: 1px solid var(--vien); }
.nut-anh { cursor: pointer; }
.nut-anh.dang-chay { opacity: .6; pointer-events: none; }
.nhan-ai { font-size: 14px; font-weight: 600; color: var(--chu-phu); padding: 8px 12px; border-radius: 10px; background: var(--nhan-nhat); }
.ke-hoach { margin: 8px 0 0; padding-left: 22px; display: grid; gap: 12px; }
.ke-hoach li { display: grid; gap: 3px; }
.ke-hoach li span { font-size: 15px; }
ul.ke-hoach { list-style: none; padding: 0; }
.tieu-phu { margin: 18px 0 8px; font-size: 16px; }
#aiKeHoach, #aiKho { display: grid; gap: 6px; }
.mot-cot { max-width: 640px; padding-bottom: 60px; display: grid; gap: 14px; }
.dang-nhap { display: grid; gap: 12px; }
.dang-nhap h3 { margin: 0; }
.dang-nhap p { margin: 0; }
.hang-email { display: flex; gap: 8px; flex-wrap: wrap; }
.hang-email input { flex: 1 1 220px; min-width: 0; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--vien); background: var(--nen); }
.bang-goi { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin-bottom: 18px; }
.goi { display: grid; gap: 8px; align-content: start; }
.goi h3 { margin: 0; }
.goi .gia { font-size: 30px; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.goi .phu { margin: 0; }
.goi .y { margin: 4px 0 8px; }
.goi.noi-bat { border: 2px solid var(--nhan); }
.thanh-toan { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; margin-bottom: 60px; }
.thanh-toan img { max-width: 100%; height: auto; border-radius: 12px; background: #fff; }
.thanh-toan > div { flex: 1 1 260px; min-width: 0; }
.ma-don { font-size: 18px; letter-spacing: .06em; }
.tot-chu { color: var(--tot); font-weight: 700; }

/* Tự soi */
#tuSoi { margin-bottom: 20px; }
#tuSoi select { padding: 9px 10px; border-radius: 10px; border: 1px solid var(--vien); background: var(--nen); }
#kqTuSoi { display: grid; gap: 12px; }
#kqTuSoi > .phu { margin: 0; }
.ds-ad { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.ad-soi { display: grid; grid-template-columns: 28px 96px minmax(0, 1fr); gap: 12px; align-items: start; padding: 12px; border: 1px solid var(--vien); border-radius: 12px; }
.ad-soi .hang { font-weight: 800; font-size: 18px; color: var(--nhan); font-variant-numeric: tabular-nums; text-align: center; }
.ad-soi img, .anh-trong { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; background: var(--nen); }
.anh-trong { display: grid; place-items: center; font-size: 12px; color: var(--chu-phu); }
.ad-noi { display: grid; gap: 6px; min-width: 0; }
.ad-noi p { margin: 0; font-size: 15px; }
.ad-chu { display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; color: var(--chu-phu); overflow-wrap: anywhere; }
.ad-ai { padding: 6px 10px; border-radius: 8px; background: var(--nhan-nhat); }
.ad-noi .hang-nut { gap: 6px; }
.ad-noi a.nut-nho { text-decoration: none; }
.ket-phan-tich { border: 2px solid var(--nhan); }
@media (max-width: 640px) {
  .ad-soi { grid-template-columns: 22px 64px minmax(0, 1fr); gap: 8px; }
  .ad-soi img, .anh-trong { width: 64px; height: 64px; }
}

.nut-vi-du { justify-self: end; margin-bottom: -6px; }

/* Nhật ký */
.ket-qua .the { min-width: 0; }
.cuon-ngang { overflow-x: auto; margin: 0 -4px; padding: 0 4px; }
.bang-nk { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.bang-nk th, .bang-nk td { text-align: left; vertical-align: top; padding: 8px 8px 8px 0; border-bottom: 1px solid var(--vien); }
.bang-nk th { font-size: 12px; color: var(--chu-phu); font-weight: 700; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.bang-nk tr:last-child td { border-bottom: 0; }
.bang-nk .dau-bang td { background: var(--tot-nhat); }
.cuon-ngang .bang-nk { min-width: 640px; }
.so-nen { margin: 0; }

.chan { max-width: 1120px; margin: 0 auto; padding: 24px clamp(16px, 4vw, 40px) 40px; border-top: 1px solid var(--vien); color: var(--chu-phu); font-size: 14px; }
.chan p { margin: 0; }
.chan { display: grid; gap: 8px; }
.chan-link a { color: var(--chu-phu); }
.chan-link a:hover { color: var(--chu); }
.phap-ly { max-width: 720px; padding: 36px 0 60px; }
.phap-ly h1 { font-size: clamp(28px, 4.5vw, 40px); letter-spacing: -.025em; margin: 0 0 6px; line-height: 1.15; }
.phap-ly h2 { font-size: 20px; margin: 28px 0 8px; }
.phap-ly ul { padding-left: 20px; margin: 0; display: grid; gap: 6px; }
.phap-ly a { color: var(--nhan); font-weight: 600; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--chu); color: var(--nen); padding: 10px 18px; border-radius: 10px; font-weight: 600; transition: .2s;
}
.toast.hien { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .cong-cu { grid-template-columns: 1fr; }
  .bai { grid-template-columns: 1fr; gap: 0; }
  .muc-luc { display: none; }
  .cong-cu-bo { grid-template-columns: minmax(0, 1fr); }
  .bang-nhap { position: static; }
}
@media (max-width: 640px) {
  .top { flex-wrap: wrap; gap: 8px 12px; }
  .menu { order: 3; width: 100%; margin-left: 0; }
  .logo { margin-right: auto; }
  .hai { grid-template-columns: 1fr; }
  .cau-truc { grid-template-columns: 1fr; gap: 2px; }
  .cau-truc dd { margin-bottom: 10px; }
  .ds-soat li { grid-template-columns: 1fr; }
}