/* thanhcatinlanh.com - kieu dang chung cho ca website
   Sinh ra tu scripts/sinh-website.py. Sua o day, dung sua trong site/. */

:root {
  --nen:#f5f7f8; --mat:#fff; --mat-chim:#eef1f3; --vien:#dde3e7; --vien-dam:#c3ccd3;
  --chu:#16212b; --chu-nhat:#5c6a75; --chu-mo:#8494a0;
  --nhan:#2d5f8a; --nhan-nen:#e4eef6; --tot:#2f6b4f; --tot-nen:#e3f0e9;
  --bong:0 1px 2px rgba(22,33,43,.06),0 4px 16px rgba(22,33,43,.05);
  --g1:#2f7a72; --g2:#6b7a35; --g3:#a0662c; --g4:#7a4a2f; --gx:#56616c;
  --r:10px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --nen:#11161b; --mat:#191f26; --mat-chim:#212932; --vien:#2b343d; --vien-dam:#3d4954;
  --chu:#e7edf2; --chu-nhat:#9dabb6; --chu-mo:#74838f;
  --nhan:#7fb3dc; --nhan-nen:#1c2b38; --tot:#7dc3a1; --tot-nen:#16271f;
  --bong:0 1px 2px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
  --g1:#63bdb2; --g2:#a8bb62; --g3:#d99a58; --g4:#c48a68; --gx:#93a1ad;
}}
:root[data-theme="dark"]{
  --nen:#11161b; --mat:#191f26; --mat-chim:#212932; --vien:#2b343d; --vien-dam:#3d4954;
  --chu:#e7edf2; --chu-nhat:#9dabb6; --chu-mo:#74838f;
  --nhan:#7fb3dc; --nhan-nen:#1c2b38; --tot:#7dc3a1; --tot-nen:#16271f;
  --bong:0 1px 2px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
  --g1:#63bdb2; --g2:#a8bb62; --g3:#d99a58; --g4:#c48a68; --gx:#93a1ad;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--nen);color:var(--chu);
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  line-height:1.6;-webkit-text-size-adjust:100%}

a{color:var(--nhan)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--nhan);outline-offset:2px}

/* Phan than rong 1200px - BANG dung anh header (nguoi dung yeu cau 27/08/2026,
   truoc do la 880px nen than hep hon han header, nhin lech).
   1236 = 1200 noi dung + 2 x 18 padding -> mep chu thang hang voi mep anh header. */
.trang{max-width:1236px;margin:0 auto;padding:20px 18px 72px;
  display:flex;flex-direction:column;gap:22px}

/* ---------- header ----------
   Anh 1200x469, tu no da co nen kem -> khong boc them nen/vien/padding,
   de anh chiem tron khung. Dat NGOAI .trang de khong dinh padding. */
.dau-web{display:block;max-width:1200px;margin:0 auto;line-height:0}
.dau-web picture{display:block}
.dau-web img{display:block;width:100%;height:auto}

/* ---------- thanh dieu huong ---------- */
.thanh{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding-bottom:16px;border-bottom:1px solid var(--vien)}
/* Duong dan dieu huong: dung font chu thuong, khong dung mono -
   mono co dau tieng Viet o co nho doc rat met. */
.thanh a.ve{font-size:14.5px;font-weight:500;text-decoration:none;color:var(--chu)}
.thanh a.ve:hover{color:var(--nhan);text-decoration:underline}
.thanh .cach{flex:1}

/* Cac nhan phu (.chi-muc, .khoi-ten, .nhan-nhom) truoc dung font mono +
   CHU HOA + gian cach rong -> doc rat met, nhat la co dau tieng Viet.
   Nay dung font chu thuong, dam 600, khong viet hoa - giong menu tren dau. */
.chi-muc{font-size:13.5px;font-weight:600;color:var(--chu-nhat)}

h1{font-family:Bitter,Georgia,serif;font-weight:600;
  font-size:clamp(26px,5.5vw,38px);line-height:1.15;letter-spacing:-.015em;
  margin:0;text-wrap:balance}

/* ---------- TEN BAI HAT: luon viet IN HOA ----------
   Du lieu goc khong dong nhat: 999/2.952 bai von da VIET HOA het (ca hai quyen
   "Ca Khuc Chuc Ton" va "Ton Vinh Chua Hang Huu"), so con lai viet thuong
   -> tron chung mot danh sach ABC nhin rat choi.
   Doi bang CSS chu KHONG doi du lieu: tim kiem, the <title>, sitemap va SEO
   van giu nguyen chu goc. Muon bo thi xoa khoi nay la xong.
   Chu hoa co dau tieng Viet dinh nhau -> noi gian cach ra mot chut cho de doc,
   va bo letter-spacing am cua h1. */
.ten-bai,
.bai-ten b,
.dieu-huong-bai b{text-transform:uppercase}
.ten-bai{letter-spacing:.005em;line-height:1.25}
.bai-ten b,.dieu-huong-bai b{letter-spacing:.01em}
h2{font-family:Bitter,Georgia,serif;font-weight:600;font-size:19px;margin:0}

.khoi{background:var(--mat);border:1px solid var(--vien);border-radius:var(--r);
  box-shadow:var(--bong);overflow:hidden}
.khoi-dau{display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:13px 16px;border-bottom:1px solid var(--vien);background:var(--mat-chim)}
.khoi-ten{font-size:13.5px;font-weight:600;color:var(--chu-nhat)}
.khoi-than{padding:16px}

/* ---------- trang chu: cac tuyen tap ---------- */
.ds-quyen{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.the-quyen{display:flex;flex-direction:column;gap:6px;padding:16px;
  background:var(--mat);border:1px solid var(--vien);border-radius:var(--r);
  box-shadow:var(--bong);text-decoration:none;color:inherit}
.the-quyen:hover{border-color:var(--nhan)}
.the-quyen b{font-family:Bitter,Georgia,serif;font-weight:600;font-size:17px}
.the-quyen small{font-size:13px;color:var(--chu-nhat)}
.the-quyen .so{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:12.5px;
  font-weight:500;color:var(--chu-nhat);font-variant-numeric:tabular-nums}

/* ---------- tim kiem, den nhanh ---------- */
.o-tim{display:flex;gap:10px;align-items:center}
input[type=search],input[type=number],select{
  font-family:inherit;font-size:16px;padding:11px 13px;border-radius:var(--r);
  border:1px solid var(--vien-dam);background:var(--mat);color:var(--chu)}
input[type=search]{flex:1;min-width:0}
input[type=number]{width:110px;font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums}
select{width:100%}
.dem-kq{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:13.5px;
  font-weight:500;color:var(--chu-nhat);font-variant-numeric:tabular-nums;flex:none}
.hang-den{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}
.den-so{display:flex;flex-direction:column;gap:6px}

.nhom-nut{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
/* Nhan "Toc do", "Doi giong", "Lap doan", "Nghe" */
.nhan-nhom{font-size:13.5px;font-weight:600;color:var(--chu-nhat);margin-right:4px}
.nut{font-family:inherit;font-size:13.5px;font-weight:500;padding:7px 13px;border-radius:7px;
  border:1px solid var(--vien-dam);background:var(--mat);color:var(--chu);cursor:pointer}
.nut:hover:not(:disabled){background:var(--mat-chim)}
.nut:disabled{opacity:.4;cursor:not-allowed}
.nut[aria-pressed="true"]{background:var(--nhan-nen);border-color:var(--nhan);color:var(--nhan)}
.hang-den .nut{padding:11px 16px}

/* ---------- danh sach bai ---------- */
.ds{display:flex;flex-direction:column}
.bai{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;
  padding:11px 16px;border-bottom:1px solid var(--vien);text-decoration:none;color:inherit}
.bai:last-child{border-bottom:none}
.bai:hover{background:var(--mat-chim)}
.bai-so{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:13.5px;
  font-weight:500;color:var(--chu-nhat);font-variant-numeric:tabular-nums}
.bai-ten{min-width:0}
.bai-ten b{font-family:Bitter,Georgia,serif;font-weight:600;font-size:15.5px;
  display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bai-ten small{font-size:12.5px;color:var(--chu-nhat);display:block;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.the{font-size:12px;font-weight:600;padding:3px 8px;border-radius:5px;
  background:var(--mat-chim);color:var(--chu-nhat);border:1px solid var(--vien);
  white-space:nowrap}
.the.du{background:var(--tot-nen);color:var(--tot);
  border-color:color-mix(in srgb,var(--tot) 30%,transparent)}
.trong-rong{padding:28px 16px;text-align:center;color:var(--chu-nhat);font-size:14.5px}

/* ---------- giai thich tu ngu ---------- */
.ds-tu{display:flex;flex-direction:column}
.muc-tu{padding:16px;border-bottom:1px solid var(--vien)}
.muc-tu:last-child{border-bottom:none}
.muc-tu .tu{font-family:Bitter,Georgia,serif;font-weight:600;font-size:19px;
  margin:0 0 6px;color:var(--nhan)}
/* Noi dung goc tu Joomla boc trong <p>, co <br> va <ul> - cho thua hop ly */
.muc-tu .nghia{font-size:15.5px;line-height:1.8;max-width:70ch}
.muc-tu .nghia p{margin:0 0 8px}
.muc-tu .nghia p:last-child{margin-bottom:0}
.muc-tu .nghia ul,.muc-tu .nghia ol{margin:0 0 8px;padding-left:22px}

/* ---------- chia trang danh sach ---------- */
.phan-trang{display:flex;flex-direction:column;align-items:center;gap:10px;
  padding:18px 16px;border-top:1px solid var(--vien);background:var(--mat-chim)}
.phan-trang-ghi{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:13px;
  font-weight:500;color:var(--chu-nhat);font-variant-numeric:tabular-nums;
  text-align:center}
.phan-trang-nut{display:flex;flex-wrap:wrap;justify-content:center;gap:6px}
.nut-trang{font-variant-numeric:tabular-nums;min-width:40px;padding:8px 12px}
.nut-trang[aria-current="page"]{background:var(--nhan);border-color:var(--nhan);
  color:#fff;font-weight:600}
.phan-trang-cham{align-self:center;color:var(--chu-mo);padding:0 2px}

/* ---------- trang bai ---------- */
.thong-tin{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:14px;color:var(--chu-nhat)}
.thong-tin em{color:var(--chu);font-weight:500;font-style:normal}

.nguon{display:flex;gap:8px;flex-wrap:wrap;padding:14px 16px;
  border-bottom:1px solid var(--vien);background:var(--mat-chim)}

.hang-phat{display:flex;align-items:center;gap:14px}
.nut-phat{flex:none;width:56px;height:56px;border-radius:50%;border:none;
  background:var(--nhan);color:#fff;cursor:pointer;display:grid;place-items:center}
.nut-phat:disabled{opacity:.4;cursor:not-allowed}
.nut-phat svg{width:23px;height:23px;fill:currentColor}
.dong-ho{font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;font-size:15px;color:var(--chu-nhat);flex:none}
.dong-ho b{color:var(--chu);font-weight:500}
.tua{flex:1;min-width:0}

input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:22px;
  background:transparent;cursor:pointer;margin:0}
input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:3px;background:var(--vien-dam)}
input[type=range]::-moz-range-track{height:5px;border-radius:3px;background:var(--vien-dam)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;
  width:15px;height:15px;border-radius:50%;background:var(--nhan);border:none;margin-top:-5px}
input[type=range]::-moz-range-thumb{width:15px;height:15px;border-radius:50%;
  background:var(--nhan);border:none}

.gia-tri-o{font-family:"IBM Plex Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;font-size:13.5px;font-weight:500;color:var(--chu-nhat)}

.ds-be{display:flex;flex-direction:column}
.be{display:grid;grid-template-columns:auto 1fr auto auto;gap:12px;align-items:center;
  padding:11px 16px;border-bottom:1px solid var(--vien)}
.be:last-child{border-bottom:none}
.be-bat{flex:none;width:42px;height:26px;border-radius:13px;border:1px solid var(--vien-dam);
  background:var(--mat-chim);cursor:pointer;position:relative;padding:0}
.be-bat::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;
  border-radius:50%;background:var(--chu-mo);transition:transform .15s ease,background .15s ease}
.be-bat[aria-pressed="true"]{background:color-mix(in srgb,var(--mau) 20%,transparent);
  border-color:var(--mau)}
.be-bat[aria-pressed="true"]::after{transform:translateX(16px);background:var(--mau)}
.be-ten b{font-family:Bitter,Georgia,serif;font-weight:600;font-size:15.5px;color:var(--mau)}
.be-so{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:13px;
  font-weight:500;color:var(--chu-nhat);font-variant-numeric:tabular-nums}
.be-am{width:80px;flex:none}
.be-am input[type=range]::-webkit-slider-thumb{background:var(--mau)}
.be-am input[type=range]::-moz-range-thumb{background:var(--mau)}
.be.tat{opacity:.5}

.sheet-boc{background:var(--mat-chim)}
/* Anh ban nhac goc chi rong 628-744px. Khung than gio la 1200px, keo anh ra
   het khung thi mo han di -> gioi han 880px (bang be rong cu) va can giua.
   Bam vao van phong to toan man hinh nhu truoc. */
.sheet-boc img{display:block;width:100%;max-width:880px;height:auto;
  margin:0 auto;cursor:zoom-in}
dialog{border:none;padding:0;background:transparent;width:100%;height:100%;
  max-width:100vw;max-height:100vh}
dialog::backdrop{background:rgba(8,12,16,.92)}
dialog img{width:100%;height:100%;object-fit:contain;cursor:zoom-out}

.loi{font-size:clamp(16px,2.6vw,18px);line-height:1.85;white-space:pre-wrap;max-width:62ch}
.loi .cau{font-weight:600}

.trong{padding:22px 16px;color:var(--chu-nhat);font-size:14.5px;text-align:center}

.dieu-huong-bai{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.dieu-huong-bai a{display:flex;flex-direction:column;gap:2px;padding:11px 15px;
  border:1px solid var(--vien-dam);border-radius:var(--r);background:var(--mat);
  text-decoration:none;color:inherit;max-width:47%}
.dieu-huong-bai a:hover{background:var(--mat-chim)}
.dieu-huong-bai small{font-size:12.5px;font-weight:600;color:var(--chu-nhat)}
.dieu-huong-bai b{font-family:Bitter,Georgia,serif;font-weight:600;font-size:14.5px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

footer{font-size:13px;color:var(--chu-mo);text-align:center;line-height:1.7;
  padding-top:18px;border-top:1px solid var(--vien)}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}
@media (max-width:520px){
  .be{grid-template-columns:auto 1fr auto;row-gap:8px}
  .be-am{width:100%;grid-column:1/-1}
  .dieu-huong-bai a{max-width:100%;flex:1}
}