/* =====================================================================
   hoc.cellamakeup.vn — bộ chữ + màu theo đúng
   output/THEME-CELLA-TOI.md (màu) và output/THEME-CELLA-CHU.md (chữ).
   ⚠️ Không tự chế cỡ chữ mới. Cần to hơn thì lên bậc trên trong bảng.
   ===================================================================== */

:root{
  font-size:16px;

  /* ── Nền — mực đen ── */
  --ink-900:#08080A;
  --ink-850:#0A0A0C;
  --ink-800:#101013;
  --ink-700:#16161A;
  --ink-600:#1E1E23;
  --hairline:rgba(201,162,75,.18);
  --hairline-soft:rgba(242,239,233,.08);

  /* ── Vàng ── */
  --gold:#C9A24B;
  --gold-bright:#E7C975;
  --gold-deep:#8A6D2F;
  --gold-glow:rgba(201,162,75,.35);

  /* ── Chữ ── */
  --paper:#F2EFE9;
  --paper-dim:#C9C5BC;
  --muted:#CCC8BF;
  --muted-dark:#8A877F;
  --red:#B3261E;

  --maxw:1220px;
  --gutter:clamp(20px,5vw,72px);

  --ff-display:'Montserrat',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --ff-body:'Montserrat',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --ff-serif:'Playfair Display',Georgia,serif;

  --ease:cubic-bezier(.22,1,.36,1);

  /* ── Cỡ co giãn ── */
  --fs-d1: clamp(48px, 17.5px + 7.81vw, 130px);
  --fs-d2: clamp(38px, 22.4px + 4.00vw,  80px);
  --fs-d3: clamp(29px, 20.8px + 2.10vw,  51px);
  --fs-q1: clamp(35px, 18.7px + 4.19vw,  79px);
  --fs-s1: clamp(32px, 27.9px + 1.05vw,  43px);
  --fs-lead:clamp(16.8px,15.3px + 0.38vw,20.8px);

  /* ── Cỡ cố định ── */
  --fs-h2:   1.70rem;
  --fs-h3:   1.45rem;
  --fs-h4:   1.22rem;
  --fs-quote:1.20rem;
  --fs-body: 1.125rem;
  --fs-sub:  1.00rem;
  --fs-btn:  0.92rem;
  --fs-nav:  0.82rem;
  --fs-meta: 0.78rem;
  --fs-eyebrow:0.72rem;
  --fs-micro:0.66rem;

  --fw-hero:800; --fw-bold:700; --fw-semi:600;
  --fw-med:500;  --fw-body:400; --fw-light:300;

  --ls-hero:.01em; --ls-btn:.12em; --ls-nav:.13em; --ls-label:.30em;

  --lh-hero:1.02; --lh-head:1.08; --lh-card:1.12;
  --lh-quote:1.40; --lh-body:1.60;

  --measure:66ch;
  --measure-narrow:38ch;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff-body);
  font-size:var(--fs-body);
  font-weight:var(--fw-body);
  line-height:var(--lh-body);
  color:var(--paper);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  overflow-wrap:break-word;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ── Tiêu đề ── */
.d1,.d2,.d3,h1,h2{
  font-family:var(--ff-display);font-weight:var(--fw-hero);
  text-transform:uppercase;letter-spacing:var(--ls-hero);line-height:var(--lh-hero);
  font-variant-numeric:lining-nums tabular-nums;
}
.d1{font-size:var(--fs-d1)}
.d2{font-size:var(--fs-d2)}
.d3{font-size:var(--fs-d3)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-family:var(--ff-display);font-weight:var(--fw-hero);
   text-transform:uppercase;letter-spacing:var(--ls-hero);line-height:1.05}
h4{font-size:var(--fs-h4);font-family:var(--ff-display);font-weight:var(--fw-hero);
   text-transform:uppercase;letter-spacing:var(--ls-hero);line-height:var(--lh-card)}

p{font-size:var(--fs-body);line-height:var(--lh-body);max-width:var(--measure)}
.lead{font-size:var(--fs-lead);font-weight:var(--fw-light);line-height:var(--lh-body);color:var(--muted)}
.sub{font-size:var(--fs-sub);max-width:var(--measure-narrow)}

.quote{font-family:var(--ff-serif);font-size:var(--fs-quote);font-weight:400;
       font-style:italic;line-height:var(--lh-quote);
       font-variant-numeric:lining-nums tabular-nums}

.stat{font-size:var(--fs-s1);font-weight:var(--fw-body);line-height:1;
      color:var(--gold-bright);font-variant-numeric:lining-nums tabular-nums}
.stat-label{font-size:var(--fs-micro);text-transform:uppercase;
            letter-spacing:var(--ls-label);color:var(--muted)}
.eyebrow{font-size:var(--fs-eyebrow);font-weight:var(--fw-med);text-transform:uppercase;
         letter-spacing:var(--ls-label);color:var(--gold);display:block}
.meta{font-size:var(--fs-meta);color:var(--muted);letter-spacing:.10em}
.micro{font-size:var(--fs-micro);text-transform:uppercase;
       letter-spacing:var(--ls-label);color:var(--muted-dark)}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ── Nút ── */
.btn{
  font-family:var(--ff-display);font-size:var(--fs-btn);font-weight:var(--fw-semi);
  text-transform:uppercase;letter-spacing:var(--ls-btn);
  padding:1.05em 2.1em;display:inline-flex;align-items:center;justify-content:center;gap:.7em;
  cursor:pointer;border:1px solid transparent;transition:all .4s var(--ease);text-align:center;
  white-space:nowrap;
}
.btn-gold{background:linear-gradient(100deg,var(--gold-bright),var(--gold));color:var(--ink-900);
  box-shadow:0 10px 40px -12px var(--gold-glow)}
.btn-gold:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--paper);border-color:var(--hairline)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-bright)}
.btn-sm{padding:.75em 1.4em}

/* ── Ô nhập liệu ── */
input,select,textarea{
  background:var(--ink-700);color:var(--paper);border:1px solid var(--hairline-soft);
  font-family:var(--ff-body);font-size:16px;
}
input:focus,select:focus,textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px var(--gold-glow)}
input::placeholder,textarea::placeholder{color:var(--muted-dark)}
select option{background:var(--ink-800);color:var(--paper)}
.err,.error,.loi{color:#FF8A8A}

/* =====================================================================
   THANH TRÊN CÙNG + ĐẦU TRANG
   ===================================================================== */
.topbar{background:var(--ink-850);color:var(--muted);border-bottom:1px solid var(--hairline-soft)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:46px}
.topbar a:hover{color:var(--gold-bright)}
.tb-left{display:flex;gap:26px;align-items:center;font-size:var(--fs-meta)}
.tb-right{display:flex;gap:18px}
.tb-right a{font-size:var(--fs-meta);letter-spacing:.10em;text-transform:uppercase}
@media(max-width:900px){.tb-left span.hide-sm,.tb-right{display:none}.topbar .wrap{justify-content:center}}

header.site{position:sticky;top:0;z-index:60;background:rgba(8,8,10,.94);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--hairline-soft)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:82px;gap:20px}
.brand{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.brand img{height:46px;width:auto}
.brand b{font-family:var(--ff-serif);font-size:var(--fs-h3);font-weight:500;letter-spacing:.10em;
  color:var(--paper);display:block;white-space:nowrap;line-height:1.1}
.brand span.bs{font-size:var(--fs-micro);letter-spacing:var(--ls-label);color:var(--muted-dark);
  text-transform:uppercase;white-space:nowrap;display:block}
nav.main{display:flex;gap:26px;align-items:center;flex:1 1 auto;justify-content:center}
nav.main a{font-size:var(--fs-nav);font-weight:var(--fw-med);letter-spacing:var(--ls-nav);
  text-transform:uppercase;white-space:nowrap;color:var(--paper);position:relative;padding:8px 0}
nav.main a:hover{color:var(--gold-bright)}
nav.main a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--gold);transition:width .3s}
nav.main a:hover::after,nav.main a.on::after{width:100%}
nav.main a.on{color:var(--gold)}
.hamb{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px}
.hamb i{display:block;width:26px;height:2px;background:var(--paper)}
@media(max-width:1080px){
  nav.main{position:fixed;inset:128px 0 auto 0;background:var(--ink-850);flex-direction:column;
    padding:26px 24px 34px;gap:6px;border-bottom:1px solid var(--hairline-soft);display:none}
  nav.main.open{display:flex}
  nav.main a{width:100%;padding:14px 0;border-bottom:1px solid var(--hairline-soft);font-size:var(--fs-sub);letter-spacing:.06em}
  .hamb{display:flex}
  header.site .btn{display:none}
}

/* =====================================================================
   HERO
   ===================================================================== */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(120% 110% at 50% 0%,var(--ink-800),var(--ink-900) 60%)}
.hero::before{content:'';position:absolute;inset:0;
  background:radial-gradient(60% 50% at 18% 12%,rgba(201,162,75,.13),transparent 62%);pointer-events:none}
.hero-inner{position:relative;padding:86px 0 78px;text-align:center}
.pill{display:inline-flex;align-items:center;gap:.6em;border:1px solid var(--hairline);
  background:rgba(201,162,75,.08);padding:9px 20px;border-radius:999px;
  font-size:var(--fs-eyebrow);font-weight:var(--fw-med);text-transform:uppercase;
  letter-spacing:var(--ls-label);color:var(--gold-bright);margin-bottom:26px}
.hero h1{max-width:16ch;margin:0 auto}
.hero h1 em{font-family:var(--ff-serif);font-style:normal;font-weight:500;text-transform:none;
  letter-spacing:.02em;display:block;
  background:linear-gradient(100deg,var(--gold-bright),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{max-width:60ch;margin:26px auto 0}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.hero-rail{position:relative;display:flex;justify-content:center;gap:clamp(28px,6vw,84px);flex-wrap:wrap;
  padding:30px 24px 40px;border-top:1px solid var(--hairline-soft)}
.hero-rail .cell{text-align:center}
@media(max-width:760px){.hero-inner{padding:56px 0 48px}}

/* =====================================================================
   KHỐI CHUNG
   ===================================================================== */
.sec{padding:78px 0}
.sec.alt{background:var(--ink-850);border-top:1px solid var(--hairline-soft);border-bottom:1px solid var(--hairline-soft)}
.sec-head{margin-bottom:44px}
.sec-head.center{text-align:center}
.sec-head.center .lead{margin-left:auto;margin-right:auto}
.sec-head h2,.sec-head .d3{margin-top:12px}
.sec-head .lead{margin-top:16px;max-width:66ch}
.sec-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.link-arrow{display:inline-flex;align-items:center;gap:9px;font-size:var(--fs-btn);font-weight:var(--fw-semi);
  letter-spacing:var(--ls-btn);text-transform:uppercase;color:var(--paper);
  border-bottom:1px solid var(--gold);padding-bottom:5px;transition:.3s}
.link-arrow:hover{color:var(--gold-bright);gap:15px}

/* ── 4 lời hứa ── */
.hua{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media(max-width:1000px){.hua{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.hua{grid-template-columns:1fr}}
.hua .box{background:var(--ink-800);border:1px solid var(--hairline-soft);padding:30px 26px;transition:.3s}
.hua .box:hover{border-color:var(--gold)}
.hua svg{width:34px;height:34px;stroke:var(--gold);fill:none;stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;margin-bottom:18px}
.hua h4{color:var(--paper);margin-bottom:10px}
.hua p{font-size:var(--fs-sub);color:var(--muted);max-width:none}

/* =====================================================================
   THẺ KHOÁ HỌC / DỊCH VỤ
   ===================================================================== */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}
@media(max-width:1000px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
@media(max-width:620px){.grid{grid-template-columns:1fr}}

.item{border:1px solid var(--hairline-soft);background:var(--ink-800);display:flex;flex-direction:column;
  transition:.35s var(--ease);overflow:hidden}
.item:hover{border-color:var(--gold);box-shadow:0 20px 44px rgba(0,0,0,.5);transform:translateY(-5px)}
.thumb{position:relative;overflow:hidden;background:var(--ink-700)}
/* ⚠️ height:auto BẮT BUỘC. Thẻ <img> có sẵn thuộc tính width/height nên trình duyệt
   coi chiều cao là 600px cố định, aspect-ratio bị bỏ qua → khung cao hơn 3:2 →
   object-fit:cover cắt mất hai bên, mà bìa CELLA có CHỮ nằm sát mép trái. */
.thumb img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;transition:transform .7s var(--ease)}
.item:hover .thumb img{transform:scale(1.05)}
/* Nhãn nằm góc PHẢI: bìa CELLA đã in sẵn chữ “CELLA MAKEUP ACADEMY” ở góc trái trên,
   đặt nhãn bên trái là che mất. */
.off{position:absolute;top:0;right:0;background:var(--red);color:#fff;
  font-size:var(--fs-meta);font-weight:var(--fw-semi);letter-spacing:.06em;padding:9px 16px;
  font-variant-numeric:lining-nums tabular-nums}
.off.save{background:linear-gradient(100deg,var(--gold-bright),var(--gold));color:var(--ink-900)}
.item .body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1}
.cat{font-size:var(--fs-eyebrow);letter-spacing:var(--ls-label);text-transform:uppercase;
  color:var(--gold);margin-bottom:14px}
.item h3{font-family:var(--ff-serif);font-weight:500;font-size:var(--fs-h3);line-height:1.32;
  color:var(--paper);margin-bottom:12px;text-transform:none;letter-spacing:normal;
  font-variant-numeric:lining-nums tabular-nums}
.item:hover h3{color:var(--gold-bright)}
.by{font-size:var(--fs-sub);color:var(--muted-dark);margin-bottom:14px;max-width:none}
.item .mo{font-size:var(--fs-sub);line-height:var(--lh-body);color:var(--muted);margin-bottom:20px;max-width:none}
.prices{margin-top:auto;padding-top:18px;border-top:1px solid var(--hairline-soft);
  display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.old{color:var(--muted-dark);text-decoration:line-through;font-size:var(--fs-sub);
  font-variant-numeric:lining-nums tabular-nums}
.now{font-family:var(--ff-serif);font-size:var(--fs-h2);color:var(--gold-bright);line-height:1;
  font-variant-numeric:lining-nums tabular-nums}
.from{font-size:var(--fs-meta);color:var(--muted-dark);letter-spacing:.10em;text-transform:uppercase}
.item .go{margin-top:18px;display:inline-flex;align-items:center;gap:9px;font-size:var(--fs-btn);
  font-weight:var(--fw-semi);letter-spacing:var(--ls-btn);text-transform:uppercase;color:var(--paper);
  border-bottom:1px solid var(--gold);padding-bottom:5px;align-self:flex-start;transition:.3s}
.item:hover .go{color:var(--gold-bright);gap:15px}

/* =====================================================================
   LỘ TRÌNH
   ===================================================================== */
.lt{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
@media(max-width:900px){.lt{grid-template-columns:1fr}}
.lt-col{background:var(--ink-800);border:1px solid var(--hairline-soft);padding:34px 30px}
.lt-col h3{color:var(--paper);margin-bottom:10px}
.lt-col > p{font-size:var(--fs-sub);color:var(--muted);max-width:none;margin-bottom:26px}
.lt-nhan{font-size:var(--fs-eyebrow);text-transform:uppercase;letter-spacing:var(--ls-label);
  color:var(--gold);margin:22px 0 14px;display:block}
.bac{display:flex;flex-direction:column;gap:2px}
.bac a{display:flex;align-items:center;gap:16px;padding:15px 18px;background:var(--ink-700);
  border:1px solid var(--hairline-soft);transition:.28s}
.bac a:hover{border-color:var(--gold);background:var(--ink-600)}
.bac .n{flex:0 0 30px;width:30px;height:30px;display:grid;place-items:center;border-radius:50%;
  border:1px solid var(--hairline);color:var(--gold);font-size:var(--fs-meta);
  font-variant-numeric:lining-nums tabular-nums}
.bac .t{flex:1 1 auto;min-width:0}
.bac .t b{display:block;font-size:var(--fs-sub);font-weight:var(--fw-semi);color:var(--paper)}
.bac .t span{display:block;font-size:var(--fs-meta);color:var(--muted-dark);letter-spacing:0}
.bac .g{flex:0 0 auto;font-family:var(--ff-serif);font-size:var(--fs-h4);color:var(--gold-bright);
  font-variant-numeric:lining-nums tabular-nums;text-transform:none;letter-spacing:normal}

/* =====================================================================
   TRANG DANH MỤC — thanh lọc
   ===================================================================== */
.page-head{padding:66px 0 0;text-align:center;
  background:radial-gradient(120% 100% at 50% 0%,var(--ink-800),var(--ink-900) 62%)}
.page-head .lead{max-width:66ch;margin:24px auto 0}
.badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}
.bdg{border:1px solid var(--hairline);background:var(--ink-800);padding:9px 20px;
  font-size:var(--fs-sub);color:var(--paper);font-variant-numeric:lining-nums tabular-nums}
.bdg b{color:var(--gold-bright);font-weight:var(--fw-semi)}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:34px 0 30px;margin-top:46px;
  border-top:1px solid var(--hairline-soft);border-bottom:1px solid var(--hairline-soft)}
.tabs{display:flex;gap:10px;flex-wrap:wrap}
.tab{border:1px solid var(--hairline-soft);background:var(--ink-800);padding:12px 22px;
  font-family:var(--ff-display);font-size:var(--fs-btn);font-weight:var(--fw-semi);
  letter-spacing:.07em;text-transform:uppercase;color:var(--paper);cursor:pointer;transition:.28s}
.tab:hover{border-color:var(--gold);color:var(--gold-bright)}
.tab.on{background:linear-gradient(100deg,var(--gold-bright),var(--gold));border-color:var(--gold);
  color:var(--ink-900);box-shadow:0 10px 34px -14px var(--gold-glow)}
.tab b{color:var(--gold-bright);font-weight:var(--fw-med);font-variant-numeric:lining-nums tabular-nums}
.tab.on b{color:var(--ink-900);font-weight:var(--fw-bold)}
.sorter{display:flex;align-items:center;gap:12px;font-size:var(--fs-sub);color:var(--muted)}
.sorter select{padding:12px 40px 12px 16px;cursor:pointer;-webkit-appearance:none;appearance:none;border-radius:0;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23C9A24B' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:12px 8px}
.empty{text-align:center;color:var(--muted);padding:60px 0;max-width:none}

/* =====================================================================
   TRANG CHI TIẾT
   ===================================================================== */
.crumb{padding:22px 0;font-size:var(--fs-meta);color:var(--muted-dark);letter-spacing:.06em}
.crumb a:hover{color:var(--gold-bright)}
.crumb span{color:var(--muted-dark);margin:0 8px}

.dt-hero{padding:16px 0 66px;
  background:radial-gradient(120% 100% at 50% 0%,var(--ink-800),var(--ink-900) 66%)}
.dt-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:52px;align-items:center}
@media(max-width:940px){.dt-grid{grid-template-columns:1fr;gap:34px}}
.dt-grid h1{text-transform:none;letter-spacing:.01em;font-family:var(--ff-serif);font-weight:500;
  font-size:var(--fs-d3);line-height:1.16;color:var(--paper);
  font-variant-numeric:lining-nums tabular-nums}
.dt-grid .lead{margin-top:20px}
.dt-facts{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.dt-anh img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border:1px solid var(--hairline-soft)}

.giabox{margin-top:30px;background:var(--ink-800);border:1px solid var(--hairline);padding:26px 28px}
.giabox .dong{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.giabox .acts{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.giabox .note{font-size:var(--fs-meta);color:var(--muted-dark);margin-top:16px;max-width:none;letter-spacing:0;line-height:1.6}

/* khối nội dung trang chi tiết */
.dt-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,320px);gap:52px;align-items:start}
@media(max-width:940px){.dt-body{grid-template-columns:1fr;gap:36px}}
.blk{margin-bottom:52px}
.blk:last-child{margin-bottom:0}
.blk h2{color:var(--paper);margin-bottom:22px}
.blk p{color:var(--muted)}
.blk p + p{margin-top:16px}

.tick{display:flex;flex-direction:column;gap:14px}
.tick li{display:flex;gap:14px;align-items:flex-start;font-size:var(--fs-body);
  line-height:var(--lh-body);color:var(--muted);max-width:var(--measure)}
.tick li::before{content:'';flex:0 0 20px;width:20px;height:20px;margin-top:6px;
  background:linear-gradient(100deg,var(--gold-bright),var(--gold));
  -webkit-mask:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6L9 17l-5-5' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6L9 17l-5-5' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}

.buoi{display:flex;flex-direction:column;gap:2px}
.buoi .row{display:flex;gap:20px;padding:20px 22px;background:var(--ink-800);
  border:1px solid var(--hairline-soft);transition:.28s}
.buoi .row:hover{border-color:var(--gold)}
.buoi .row.mo{opacity:.42}
.buoi .n{flex:0 0 42px;font-family:var(--ff-serif);font-size:var(--fs-h3);color:var(--gold);line-height:1.1;
  font-variant-numeric:lining-nums tabular-nums}
.buoi .t b{display:block;font-size:var(--fs-sub);font-weight:var(--fw-semi);color:var(--paper);margin-bottom:5px}
.buoi .t span{display:block;font-size:var(--fs-sub);color:var(--muted)}

table.bang{width:100%;border-collapse:collapse;font-variant-numeric:lining-nums tabular-nums}
table.bang th,table.bang td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--hairline-soft);
  font-size:var(--fs-sub)}
table.bang th{font-family:var(--ff-display);font-size:var(--fs-eyebrow);text-transform:uppercase;
  letter-spacing:var(--ls-label);color:var(--gold);font-weight:var(--fw-med)}
table.bang td.g{font-family:var(--ff-serif);font-size:var(--fs-h4);color:var(--gold-bright);
  text-transform:none;letter-spacing:normal;white-space:nowrap}
table.bang td.g s{color:var(--muted-dark);font-size:var(--fs-sub);margin-right:8px}
table.bang tr:last-child td{border-bottom:0}
.bang-wrap{overflow-x:auto;background:var(--ink-800);border:1px solid var(--hairline-soft)}

.canh{background:var(--ink-800);border:1px solid var(--hairline);border-left:3px solid var(--gold);
  padding:24px 26px;margin-top:26px}
.canh p{font-size:var(--fs-sub);color:var(--muted);max-width:none}
.canh strong{color:var(--paper)}

/* cột phải trang chi tiết */
.side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
@media(max-width:940px){.side{position:static}}
.side .box{background:var(--ink-800);border:1px solid var(--hairline-soft);padding:26px 24px}
.side h4{color:var(--paper);margin-bottom:16px}
.side ul{display:flex;flex-direction:column;gap:11px}
.side li{font-size:var(--fs-sub);color:var(--muted);line-height:1.6}
.side li b{color:var(--paper);font-weight:var(--fw-semi)}
.side .btn{width:100%;margin-top:6px}

/* ── ghi chú 3 ô ── */
.notes-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
@media(max-width:900px){.notes-grid{grid-template-columns:1fr}}
.note{background:var(--ink-800);border:1px solid var(--hairline-soft);padding:30px 28px;transition:.3s}
.note:hover{border-color:var(--gold)}
.note b{display:block;font-family:var(--ff-serif);font-size:var(--fs-h4);color:var(--paper);
  font-weight:500;margin-bottom:12px;text-transform:none;letter-spacing:normal}
.note p{font-size:var(--fs-sub);color:var(--muted);max-width:none}
.note strong{color:var(--paper)}

/* =====================================================================
   CTA + CHÂN TRANG
   ===================================================================== */
.cta{background:radial-gradient(120% 100% at 50% 0%,var(--ink-800),var(--ink-900) 62%);
  text-align:center;padding:92px 0;border-top:1px solid var(--hairline-soft)}
.cta h2{font-family:var(--ff-serif);font-weight:400;font-size:var(--fs-d3);line-height:1.22;
  color:var(--paper);text-transform:none;letter-spacing:.02em}
.cta p{color:var(--muted);max-width:62ch;margin:22px auto 0}
.cta .acts{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:38px}

footer.site{background:var(--ink-850);color:var(--muted);padding:72px 0 0;
  border-top:1px solid var(--hairline-soft)}
.f-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:44px;padding-bottom:52px}
@media(max-width:1000px){.f-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}}
@media(max-width:620px){.f-grid{grid-template-columns:1fr}}
footer.site h5{font-family:var(--ff-display);font-size:var(--fs-eyebrow);font-weight:var(--fw-med);
  color:var(--gold);letter-spacing:var(--ls-label);text-transform:uppercase;margin-bottom:22px}
footer.site li{margin-bottom:12px;font-size:var(--fs-sub);line-height:1.6}
footer.site a:hover{color:var(--gold-bright)}
footer.site img.flogo{height:52px;margin-bottom:20px}
footer.site p{font-size:var(--fs-sub);max-width:none;color:var(--muted)}
.f-bot{border-top:1px solid var(--hairline-soft);padding:24px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:var(--fs-meta);color:var(--muted-dark)}
@media(max-width:820px){.f-bot{justify-content:center;text-align:center}}

.callbar{display:none}
@media(max-width:768px){
  .callbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:90}
  .callbar a{padding:17px;text-align:center;font-family:var(--ff-display);font-size:var(--fs-btn);
    letter-spacing:var(--ls-btn);text-transform:uppercase;font-weight:var(--fw-semi)}
  .callbar a.c1{background:linear-gradient(100deg,var(--gold-bright),var(--gold));color:var(--ink-900);font-weight:var(--fw-bold)}
  .callbar a.c2{background:var(--ink-800);color:var(--paper);border-top:1px solid var(--hairline)}
  footer.site{padding-bottom:62px}
  .page-head{padding-top:48px}
  .toolbar{margin-top:34px}
  .sec{padding:56px 0}
}

/* =====================================================================
   HIỆU ỨNG CUỘN
   ⚠️ Mặc định MỌI khối đều HIỆN. Lớp .reveal chỉ được gắn bằng JS sau khi
   đã xác nhận trình duyệt có IntersectionObserver — xem bẫy đã ghi ở
   memory "new IntersectionObserver không guard giết cả khối script".
   ===================================================================== */
.js-reveal .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js-reveal .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .js-reveal .reveal{opacity:1;transform:none;transition:none}
}