/* ═══════════════════════════════════════════════════════════════
   Trang ủng hộ — hệ thị giác lấy từ playvalorant.com
   Không ảnh. Không asset sinh tự động. Mọi hình khối là CSS/SVG.
   Phông chữ tự host, giấy phép SIL OFL.
   ═══════════════════════════════════════════════════════════════ */

/* ── 1. Token ─────────────────────────────────────────────────── */
:root{
  --ink:#0F1923;
  --ink-2:#1A242E;
  --ink-3:#212D39;

  --red:#FF4655;
  --red-deep:#D62836;
  --red-press:#A81E29;

  --bone:#ECE8E1;
  --bone-72:rgba(236,232,225,.72);
  --bone-52:rgba(236,232,225,.52);
  --bone-38:rgba(236,232,225,.38);

  --dim:#9AA6B1;
  --dim-2:#6C7780;

  --line:rgba(236,232,225,.13);
  --line-2:rgba(236,232,225,.26);

  --f-display:"Oswald","Saira Condensed","Barlow Condensed",Impact,sans-serif;
  --f-text:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,monospace;

  --nav:76px;
  --wrap:1400px;
  --edge:clamp(20px,4.4vw,64px);
  --band:clamp(72px,8vw,132px);

  --ease:cubic-bezier(.22,.61,.24,1);
  --fast:.16s linear;
}

/* ── 2. Nền ───────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--bone);
  font:400 15px/1.62 var(--f-text);
  font-feature-settings:"kern" 1,"liga" 1,"cv05" 1;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:9000;
  pointer-events:none;
  opacity:.032;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol,dl{margin:0;padding:0;list-style:none}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}

.skip{
  position:fixed;
  top:10px;left:10px;
  z-index:9500;
  padding:10px 16px;
  background:var(--bone);
  color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  transform:translateY(-160%);
  transition:transform var(--fast);
}
.skip:focus{transform:none}

/* ── 3. Rail dọc (chỉ desktop rộng) ───────────────────────────── */
.rail{
  position:fixed;
  left:0;top:0;bottom:0;
  width:52px;
  z-index:40;
  display:none;
  flex-direction:column;
  align-items:center;
  gap:18px;
  padding:96px 0 28px;
  border-right:1px solid var(--line);
  background:var(--ink);
}
.rail__tick{width:1px;height:44px;background:var(--red)}
.rail__text{
  writing-mode:vertical-rl;
  font-size:10px;font-weight:600;letter-spacing:.34em;text-transform:uppercase;
  color:var(--bone-38);
}
.rail__rule{flex:1;width:1px;background:var(--line)}
.rail__year{
  writing-mode:vertical-rl;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.2em;
  color:var(--dim-2);
}

/* ── 4. Nav ───────────────────────────────────────────────────── */
.nav{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;gap:clamp(16px,3vw,40px);
  height:var(--nav);
  padding:0 var(--edge);
  border-bottom:1px solid var(--line);
  background:rgba(15,25,35,.86);
  backdrop-filter:saturate(140%) blur(12px);
}
.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
.brand__mark{width:20px;height:20px;color:var(--bone);flex:0 0 auto}
.brand__text{
  font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;
}
.nav__links{
  display:none;
  margin-left:auto;
  gap:clamp(18px,2.4vw,34px);
  font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--bone-52);
}
.nav__links a{position:relative;padding:4px 0;transition:color var(--fast)}
.nav__links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--red);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav__links a:hover{color:var(--bone)}
.nav__links a:hover::after{transform:scaleX(1)}
.nav>.btn{margin-left:auto}

/* ── 5. Nút ───────────────────────────────────────────────────── */
.btn{
  --py:15px; --px:34px;
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;
  padding:var(--py) var(--px);
  border-radius:0;
  transform:skew(-6deg);
  font-size:13px;font-weight:700;letter-spacing:.17em;text-transform:uppercase;
  transition:background-color var(--fast),color var(--fast),border-color var(--fast),transform .18s var(--ease);
}
.btn>span{display:inline-block;transform:skew(6deg)}
.btn--xs{--py:9px;--px:18px;font-size:11px}
.btn:hover{transform:skew(-6deg) translateY(-1px)}
.btn:active{transform:skew(-6deg) translateY(0)}
.btn--red{background:var(--red);color:#fff}
.btn--red:hover{background:#fff;color:var(--ink)}
.btn--red:active{background:var(--red-press);color:#fff}
.btn--wire{border:1px solid var(--line-2);color:var(--bone)}
.btn--wire:hover{background:var(--bone);border-color:var(--bone);color:var(--ink)}

/* ── 6. Chữ dùng chung ────────────────────────────────────────── */
.kicker{
  display:flex;align-items:center;gap:12px;
  margin:0 0 26px;
  font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;
  color:var(--dim);
}
.kicker__line{width:clamp(24px,5vw,64px);height:1px;background:var(--red)}
.kicker__num{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;color:var(--red);
}
.kicker--tight{margin-bottom:14px}

.display{
  margin:0;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(38px,5.4vw,68px);
  line-height:.96;letter-spacing:-.008em;text-transform:uppercase;
  text-wrap:balance;
}
.dek{margin:22px 0 0;max-width:56ch;color:var(--bone-72);font-size:16px;text-wrap:pretty}
.fine{margin:22px 0 0;font-size:12px;line-height:1.65;color:var(--dim-2);max-width:62ch}
.mono{font-family:var(--f-mono);font-size:12px;letter-spacing:.03em;font-variant-numeric:tabular-nums}
.dim{color:var(--dim-2)}
.accent{color:var(--red)}

/* ── 7. Hero ──────────────────────────────────────────────────── */
.hero{
  position:relative;
  padding:clamp(40px,6vw,84px) var(--edge) clamp(28px,4vw,48px);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(to right,var(--line) 0 1px,transparent 1px clamp(80px,9vw,140px)),
    repeating-linear-gradient(to bottom,var(--line) 0 1px,transparent 1px clamp(80px,9vw,140px));
  -webkit-mask-image:radial-gradient(130% 100% at 78% 8%,#000 0,transparent 74%);
  mask-image:radial-gradient(130% 100% at 78% 8%,#000 0,transparent 74%);
  opacity:.5;
}
.hero::after{
  content:"";position:absolute;right:-16%;top:-42%;
  width:74vw;height:74vw;pointer-events:none;
  background:radial-gradient(circle,rgba(255,70,85,.14) 0,transparent 60%);
}
.hero>*{position:relative;z-index:1}
.hero__rule{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(to right,transparent,var(--red) 18%,transparent 82%);
  opacity:.55;
}

.hero__title{
  position:relative;
  margin:0;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(64px,13.4vw,168px);
  line-height:.86;letter-spacing:-.012em;text-transform:uppercase;
  text-wrap:balance;
  hanging-punctuation:first allow-end;
  color:#fff;
}
.hero__title.fx-on,
.hero__title.fx-on *{color:transparent}
.fx-canvas{
  position:absolute;
  inset:0;
  display:block;
  pointer-events:none;
}
.hero__title-last i{font-style:normal;color:var(--red)}

.hero__body{
  display:grid;
  gap:clamp(24px,4vw,56px);
  grid-template-columns:1fr;
  margin-top:clamp(26px,4vw,44px);
  padding-top:clamp(22px,3vw,34px);
  border-top:1px solid var(--line);
  max-width:var(--wrap);
}
.lede{margin:0;max-width:44ch;font-size:clamp(15px,1.15vw,17px);line-height:1.58;color:var(--bone-72)}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px}

.figures{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px 20px;
  max-width:var(--wrap);
  margin:clamp(38px,5vw,64px) 0 0;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.figure dt{
  font-size:10px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--dim-2);
}
.figure dd{
  margin:9px 0 0;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(26px,2.8vw,38px);line-height:1;color:var(--bone);
  font-variant-numeric:tabular-nums;
}
.figure dd span{font-size:.46em;color:var(--bone-38);margin-left:3px;letter-spacing:.04em}
.figure__word{font-size:clamp(22px,2.2vw,30px)!important}

/* ── 8. Band ──────────────────────────────────────────────────── */
.band{
  padding:var(--band) var(--edge);
  border-bottom:1px solid var(--line);
  max-width:calc(var(--wrap) + var(--edge)*2);
  margin:0 auto;
}
.band--deep{background:var(--ink-2);max-width:none}
.band--deep>*{max-width:var(--wrap);margin-left:auto;margin-right:auto}
.band__head{margin-bottom:clamp(40px,5vw,64px)}
.band__head--narrow{max-width:760px}

/* ── 9. Bảng mức ──────────────────────────────────────────────── */
.rates{border-top:1px solid var(--line-2)}
.rate{
  position:relative;
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-areas:
    "amount go"
    "label  go"
    "note   go";
  align-items:center;
  gap:0 20px;
  width:100%;
  padding:26px 0;
  border-bottom:1px solid var(--line);
  text-align:left;
  transition:padding-left .28s var(--ease),background-color .2s linear;
}
.rate::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--red);transform:scaleY(0);transform-origin:top;
  transition:transform .26s var(--ease);
}
.rate:hover{padding-left:24px;background:rgba(255,70,85,.04)}
.rate:hover::before{transform:scaleY(1)}
.rate__amount{
  grid-area:amount;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(40px,5vw,64px);line-height:.92;
  color:var(--bone);font-variant-numeric:tabular-nums;
  transition:color .2s linear;
}
.rate__amount span{font-size:.42em;color:var(--bone-38);margin-left:4px}
.rate:hover .rate__amount{color:#fff}
.rate__label{
  grid-area:label;margin-top:10px;
  font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--bone-72);
}
.rate__note{
  grid-area:note;margin-top:6px;font-size:12px;color:var(--dim-2);
}
.rate__go{
  grid-area:go;
  width:44px;height:44px;display:grid;place-items:center;
  border:1px solid var(--line-2);color:var(--dim);
  transition:background-color .2s linear,border-color .2s linear,color .2s linear,transform .24s var(--ease);
}
.rate__go svg{width:20px;height:20px}
.rate:hover .rate__go{background:var(--red);border-color:var(--red);color:#fff;transform:translateX(4px)}
.rate--flag{background:rgba(255,70,85,.05)}
.rate--flag::before{transform:scaleY(1)}
.rate__flag{
  position:absolute;top:0;left:0;
  padding:4px 9px;
  background:var(--red);color:#fff;
  font-size:9px;font-weight:700;letter-spacing:.18em;
}
.rate--flag{padding-top:40px}

/* ── 10. Hoá đơn ──────────────────────────────────────────────── */
.ledger{
  border-top:1px solid var(--line-2);
  font-variant-numeric:tabular-nums;
}
.ledger__row{
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-areas:
    "name money"
    "note money";
  align-items:baseline;
  gap:2px 20px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.ledger__name{
  grid-area:name;
  font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--bone);
}
.ledger__note{
  grid-area:note;
  font-size:12px;color:var(--dim-2);
}
.ledger__money{
  grid-area:money;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(20px,2.2vw,28px);line-height:1;
  color:var(--bone-72);
  white-space:nowrap;text-align:right;
}
.ledger__money span{
  margin-left:7px;
  font-family:var(--f-mono);font-size:11px;font-weight:400;
  letter-spacing:.04em;text-transform:lowercase;
  color:var(--dim-2);
}
.ledger__row--total{
  border-bottom:0;
  border-top:2px solid var(--red);
  margin-top:-1px;
  padding-top:24px;
}
.ledger__row--total .ledger__name{
  font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);
}
.ledger__row--total .ledger__money{
  font-size:clamp(28px,3.2vw,42px);color:#fff;
}

/* ── 10b. Cảm ơn ──────────────────────────────────────────────── */
.thanks{background:var(--ink-2);max-width:none;border-bottom:1px solid var(--line)}
.thanks__inner{
  max-width:820px;
  margin:0 auto;
  padding:0 0 0 clamp(0px,4vw,28px);
  border-left:2px solid var(--red);
}
.thanks__lead{
  margin:0 0 22px;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(26px,3.4vw,42px);line-height:1.08;letter-spacing:.005em;
  text-transform:uppercase;color:#fff;
}
.thanks__body{
  margin:0;
  max-width:58ch;
  font-size:15px;line-height:1.62;color:var(--bone-72);
}
.thanks__stamp{
  margin:34px 0 0;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--dim-2);
}
.thanks__stamp::before{
  content:"";display:inline-block;
  width:22px;height:1px;margin-right:10px;vertical-align:middle;
  background:var(--red);
}

/* ── 11. Bước ─────────────────────────────────────────────────── */
.steps{
  display:grid;gap:0;
  grid-template-columns:1fr;
  border-top:1px solid var(--line);
}
.step{padding:34px 0;border-bottom:1px solid var(--line)}
.step__n{
  display:block;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(52px,6vw,76px);line-height:.9;
  color:transparent;
  -webkit-text-stroke:1px var(--line-2);
  margin-bottom:18px;
  transition:-webkit-text-stroke-color .22s linear,color .22s linear;
}
.step:hover .step__n{color:var(--red);-webkit-text-stroke-color:var(--red)}
.step__t{
  margin:0 0 10px;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(22px,2.2vw,28px);letter-spacing:.01em;text-transform:uppercase;
}
.step p{margin:0;max-width:38ch;font-size:14px;color:var(--bone-72)}

/* ── 12. Strip ────────────────────────────────────────────────── */
.strip{
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--ink-3);
  padding:13px 0;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 6%,#000 94%,transparent);
  mask-image:linear-gradient(to right,transparent,#000 6%,#000 94%,transparent);
}
.strip__track{display:flex;width:max-content;animation:slide 54s linear infinite}
.strip:hover .strip__track{animation-play-state:paused}
.strip__row{
  display:flex;align-items:center;gap:10px;
  padding:0 26px;
  border-right:1px solid var(--line);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim);
  white-space:nowrap;
}
.strip__row b{color:var(--bone-72);font-weight:600}
.strip__row span{font-family:var(--f-mono);color:var(--bone-38)}
@keyframes slide{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}

/* ── 13. Hỏi đáp ──────────────────────────────────────────────── */
.qa-list{max-width:860px;border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:28px;
  padding:24px 0;
  cursor:pointer;list-style:none;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:color var(--fast);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"";
  flex:0 0 auto;
  width:11px;height:11px;margin-top:6px;
  border-right:1px solid var(--dim);border-bottom:1px solid var(--dim);
  transform:rotate(45deg);
  transition:transform .24s var(--ease),border-color var(--fast);
}
.qa[open] summary::after{transform:rotate(225deg);border-color:var(--red)}
.qa summary:hover{color:#fff}
.qa__body{padding:0 0 28px;max-width:66ch}
.qa__body p{margin:0;color:var(--bone-72);font-size:14px}
.qa__body strong{color:var(--bone);font-weight:600}

/* ── 14. Colophon ─────────────────────────────────────────────── */
.colophon{
  padding:var(--band) var(--edge) clamp(48px,6vw,80px);
  max-width:calc(var(--wrap) + var(--edge)*2);
  margin:0 auto;
  border-bottom:1px solid var(--line);
}
.colophon__grid{
  display:grid;gap:32px 40px;
  grid-template-columns:1fr;
  margin-top:8px;
}
.colophon__grid h3{
  margin:0 0 8px;
  font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--red);
}
.colophon__grid p{margin:0;font-size:13px;line-height:1.7;color:var(--bone-52);max-width:44ch}
.colophon__stamp{
  margin:clamp(36px,5vw,56px) 0 0;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--dim-2);
}

/* ── 15. Footer ───────────────────────────────────────────────── */
.foot{
  padding:clamp(40px,5vw,64px) var(--edge) 56px;
  max-width:calc(var(--wrap) + var(--edge)*2);
  margin:0 auto;
}
.foot__top{
  display:flex;flex-wrap:wrap;gap:22px;
  align-items:center;justify-content:space-between;
  padding-bottom:26px;border-bottom:1px solid var(--line);
}
.foot__brand{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase}
.foot__brand .brand__mark{width:18px;height:18px}
.foot__links{display:flex;gap:22px;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
.foot__links a{transition:color var(--fast)}
.foot__links a:hover{color:var(--bone)}
.foot__legal{
  margin:26px 0 0;max-width:76ch;
  font-size:12px;line-height:1.75;color:var(--dim-2);
}
.foot__fine{margin:16px 0 0;font-size:11px;color:var(--dim-2);opacity:.75}

/* ── 16. Hộp thanh toán ───────────────────────────────────────── */
.pay[hidden]{display:none}
.pay{position:fixed;inset:0;z-index:200;display:grid;place-items:end center}
.pay__scrim{position:absolute;inset:0;background:rgba(6,10,14,.84);backdrop-filter:blur(7px)}
.pay__panel{
  position:relative;
  width:min(540px,100%);
  max-height:94dvh;overflow:auto;
  padding:clamp(26px,4vw,40px);
  background:var(--ink-2);
  border-top:2px solid var(--red);
  border-left:1px solid var(--line);
  border-right:1px solid var(--line);
  animation:rise .26s var(--ease);
}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.pay__close{
  position:absolute;top:14px;right:14px;
  width:36px;height:36px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--dim);
  transition:color var(--fast),border-color var(--fast);
}
.pay__close svg{width:16px;height:16px}
.pay__close:hover{color:var(--bone);border-color:var(--line-2)}
.pay__title{
  margin:0 0 10px;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(28px,3.6vw,40px);line-height:1.05;text-transform:uppercase;
}
.pay__desc{margin:0 0 24px;font-size:13px;color:var(--bone-52);max-width:40ch}

.pay__sum{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.pay__k{display:block;font-size:10px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--dim-2);margin-bottom:7px}
.pay__amount{
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(34px,4.4vw,46px);line-height:1;color:#fff;
  font-variant-numeric:tabular-nums;
}

.qr{
  position:relative;display:grid;place-items:center;gap:7px;
  min-height:230px;margin:22px 0;
  padding:30px 20px;
  background:var(--ink);
  border:1px solid var(--line);
}
.qr__corners{
  position:absolute;inset:13px;pointer-events:none;
  background-image:
    linear-gradient(var(--red) 0 0),linear-gradient(var(--red) 0 0),
    linear-gradient(var(--red) 0 0),linear-gradient(var(--red) 0 0);
  background-repeat:no-repeat;
  background-size:20px 2px,2px 20px,20px 2px,2px 20px;
  background-position:0 0,0 0,100% 100%,100% 100%;
  opacity:.85;
}
.qr__placeholder{
  display:flex;align-items:center;gap:10px;margin:0;
  font-family:var(--f-display);font-size:20px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--bone-38);
}
.qr__spin{
  width:13px;height:13px;border:1px solid var(--bone-38);border-top-color:var(--red);
  border-radius:50%;animation:spin 1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.qr__hint{margin:0;font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim-2)}

.field{position:relative;margin-bottom:18px}
.field label{display:block;margin-bottom:9px;font-size:10px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.field input{
  width:100%;padding:13px 66px 13px 15px;
  background:var(--ink);
  border:1px solid var(--line-2);border-radius:0;
  color:var(--bone);font:14px var(--f-text);
  transition:border-color var(--fast);
}
.field input::placeholder{color:var(--dim-2)}
.field input:focus{outline:none;border-color:var(--red)}
.field input:disabled{opacity:.45;cursor:not-allowed}
.field__count{position:absolute;right:13px;bottom:14px;font-family:var(--f-mono);font-size:10px;color:var(--dim-2)}

.check{display:flex;gap:13px;align-items:flex-start;padding:15px;background:var(--ink);border:1px solid var(--line);cursor:pointer}
.check input{position:absolute;opacity:0;width:0;height:0}
.check__box{
  flex:0 0 auto;width:19px;height:19px;margin-top:1px;
  border:1px solid var(--line-2);display:grid;place-items:center;
  transition:background-color var(--fast),border-color var(--fast);
}
.check__box::after{content:"";width:8px;height:8px;background:#fff;transform:scale(0);transition:transform .16s var(--ease)}
.check input:checked+.check__box{background:var(--red);border-color:var(--red)}
.check input:checked+.check__box::after{transform:scale(1)}
.check input:focus-visible+.check__box{outline:2px solid var(--red);outline-offset:3px}
.check__text{display:flex;flex-direction:column;gap:3px}
.check__text strong{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.check__text em{font-style:normal;font-size:12px;color:var(--dim)}

.pay__legal{margin:20px 0 0;font-size:11px;line-height:1.7;color:var(--dim-2)}
.pay__legal a{color:var(--bone-52);text-decoration:underline;text-underline-offset:2px}
.pay__legal a:hover{color:var(--red)}

/* ── 17. Dock mobile ──────────────────────────────────────────── */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:none;align-items:center;justify-content:space-between;gap:16px;
  padding:12px var(--edge) calc(12px + env(safe-area-inset-bottom));
  background:rgba(15,25,35,.94);
  border-top:1px solid var(--line);
  backdrop-filter:blur(12px);
  animation:rise .3s var(--ease);
}
.dock__text{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.dock[hidden]{display:none}

.live{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ── 18. Reveal ───────────────────────────────────────────────── */
/* Chỉ ẩn khi JS đã chạy (xem assets/boot.js). Không có JS thì
   nội dung hiện bình thường, không bao giờ trắng trang. */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .62s var(--ease),transform .62s var(--ease)}
.js [data-reveal].in{opacity:1;transform:none}

/* ── 19. Breakpoint ───────────────────────────────────────────── */
@media (min-width:560px){
  .figures{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (min-width:720px){
  .pay{place-items:center}
  .pay__panel{border:1px solid var(--line);border-top:2px solid var(--red)}
  .hero__body{grid-template-columns:minmax(0,1fr) auto;align-items:end}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));border-top:0;border-left:1px solid var(--line)}
  .step{padding:30px 26px 36px;border-bottom:0;border-right:1px solid var(--line);border-top:1px solid var(--line)}
  .step:first-child{border-left:0}
  .colophon__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:960px){
  .nav__links{display:flex}
  .nav>.btn{margin-left:0}
  .ledger__row{
    grid-template-columns:minmax(200px,26%) 1fr auto;
    grid-template-areas:"name note money";
    gap:0 32px;
    padding:22px 0;
  }
  .ledger__note{text-align:right}
  .rate{
    grid-template-columns:minmax(240px,26%) 1fr auto auto;
    grid-template-areas:"amount label note go";
    gap:0 32px;
    padding:30px 0;
  }
  .rate__label{margin-top:0}
  .rate__note{margin-top:0;text-align:right}
  .rate--flag{padding-top:30px}
  .colophon__grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (min-width:1280px){
  .rail{display:flex}
  body{padding-left:52px}
  .nav,.hero,.band,.colophon,.foot,.strip{padding-left:calc(var(--edge) - 0px)}
}
@media (max-width:719px){
  .dock{display:flex}
  body{padding-bottom:64px}
}

/* ── 20. Giảm chuyển động ─────────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .strip__track{animation:none}
}

/* ── 21. In ───────────────────────────────────────────────────── */
@media print{
  body{background:#fff;color:#000}
  body::after,.rail,.nav,.dock,.strip,.pay{display:none!important}
  a{text-decoration:underline}
}

/* ── 22. Trang văn bản pháp lý ────────────────────────────────── */
.doc-head{
  padding:clamp(40px,6vw,84px) var(--edge) clamp(28px,4vw,44px);
  border-bottom:1px solid var(--line);
  max-width:calc(var(--wrap) + var(--edge)*2);
  margin:0 auto;
}
.doc-head__meta{
  display:flex;flex-wrap:wrap;gap:8px 22px;
  margin:0 0 24px;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim-2);
}
.doc-head h1{
  margin:0;
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(38px,6vw,76px);line-height:.96;text-transform:uppercase;
}
.doc-head p{margin:20px 0 0;max-width:60ch;font-size:14px;color:var(--bone-52)}

.doc{
  max-width:760px;
  margin:0 auto;
  padding:clamp(40px,5vw,72px) var(--edge) clamp(72px,8vw,110px);
  counter-reset:sec;
}
.doc section{
  padding-bottom:clamp(28px,3.5vw,40px);
  margin-bottom:clamp(28px,3.5vw,40px);
  border-bottom:1px solid var(--line);
}
.doc section:last-of-type{border-bottom:0}
.doc h2{
  display:flex;gap:14px;align-items:baseline;
  margin:0 0 14px;
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--red);
  counter-increment:sec;
}
.doc h2::before{
  content:counter(sec,decimal-leading-zero);
  font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;
  color:var(--dim-2);
}
.doc h3{
  margin:22px 0 8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--bone-72);
}
.doc p{margin:0 0 12px;font-size:14px;line-height:1.72;color:var(--bone-72)}
.doc p:last-child{margin-bottom:0}
.doc ul{margin:0 0 12px;padding-left:18px;list-style:none}
.doc li{position:relative;font-size:14px;line-height:1.72;color:var(--bone-72);margin-bottom:8px}
.doc li::before{
  content:"";position:absolute;left:-16px;top:.72em;
  width:5px;height:1px;background:var(--red);
}
.doc strong{color:var(--bone);font-weight:600}
.doc a{color:var(--bone);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-2)}
.doc a:hover{text-decoration-color:var(--red)}
.doc-note{
  margin:0 0 28px;
  padding:16px 18px;
  border-left:2px solid var(--red);
  background:var(--ink-2);
  font-size:13px;line-height:1.7;color:var(--bone-52);
}
.doc-foot{
  max-width:760px;
  margin:0 auto;
  padding:0 var(--edge) clamp(60px,7vw,96px);
  font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--dim-2);
}

/* ── 22. Chi render section khi gan viewport ─────────────────── */
main > section, main > footer{
  content-visibility:auto;
  contain-intrinsic-size:auto 420px;
}