/* =========================================================
   Token Tax — Bangla vs English in AI
   Look: a tax invoice printed on Ekushey-poster paper.
   Paper white, ink black, Shaheed Minar red, flag green.
   ========================================================= */

/* ---------- Tokens ---------- */
:root,
:root[data-theme="light"] {
  --paper: #f4efe6;
  --paper-2: #fbf8f2;
  --paper-3: #ebe4d8;
  --ink: #16130f;
  --ink-2: #4a443c;
  --muted: #776f63;
  --line: rgba(22, 19, 15, .14);
  --line-2: rgba(22, 19, 15, .28);

  --red: #d42a20;
  --red-soft: rgba(212, 42, 32, .1);
  --on-red: #fdf8f0;
  --green: #0b6e4f;
  --green-soft: rgba(11, 110, 79, .12);
  --mustard: #c98f0a;

  --bn: var(--red);
  --en: var(--ink);
  --grain-op: .06;
  --shadow: 0 1px 0 rgba(22, 19, 15, .06), 0 24px 50px -28px rgba(60, 40, 20, .35);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #12100e;
    --paper-2: #1c1916;
    --paper-3: #26221d;
    --ink: #f2ece2;
    --ink-2: #c9c0b2;
    --muted: #978e80;
    --line: rgba(242, 236, 226, .13);
    --line-2: rgba(242, 236, 226, .26);
    --red: #ff5545;
    --red-soft: rgba(255, 85, 69, .14);
    --on-red: #160805;
    --green: #39c48f;
    --green-soft: rgba(57, 196, 143, .14);
    --mustard: #f0bd45;
    --grain-op: .05;
    --shadow: 0 1px 0 rgba(0, 0, 0, .4), 0 30px 60px -30px rgba(0, 0, 0, .8);
  }
}
:root[data-theme="dark"] {
  --paper: #12100e;
  --paper-2: #1c1916;
  --paper-3: #26221d;
  --ink: #f2ece2;
  --ink-2: #c9c0b2;
  --muted: #978e80;
  --line: rgba(242, 236, 226, .13);
  --line-2: rgba(242, 236, 226, .26);
  --red: #ff5545;
  --red-soft: rgba(255, 85, 69, .14);
  --on-red: #160805;
  --green: #39c48f;
  --green-soft: rgba(57, 196, 143, .14);
  --mustard: #f0bd45;
  --grain-op: .05;
  --shadow: 0 1px 0 rgba(0, 0, 0, .4), 0 30px 60px -30px rgba(0, 0, 0, .8);
}

:root {
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --bangla: "Anek Bangla", "Noto Sans Bengali", "Nirmala UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --wrap: 1180px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 var(--display);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  transition: background-color .35s ease, color .35s ease;
}
/* paper grain */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 100; pointer-events: none; opacity: var(--grain-op);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .5  0 0 0 0 .4  0 0 0 0 .3  0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
a { color: inherit; }
button, textarea { font: inherit; color: inherit; }
h1, h2, h3 { margin: 0; }
p, dl, dd { margin: 0; }
::selection { background: var(--red); color: var(--on-red); }
:focus-visible { outline: 2.5px solid var(--red); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 200; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 6px; }
.skip:focus { left: 16px; }
.bn { font-family: var(--bangla); }

/* ---------- Header ---------- */
.bar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1.5px solid var(--ink);
}
.bar__in { display: flex; align-items: center; gap: 28px; height: 62px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 800 19px/1 var(--display); letter-spacing: -.02em; text-decoration: none; text-transform: uppercase; }
.logo__mark {
  width: 30px; height: 30px; display: grid; place-items: center; border-radius: 7px;
  background: var(--red); color: var(--on-red); font: 800 20px/1 var(--bangla);
}
.bar__nav { display: flex; gap: 26px; margin-left: auto; font-size: 14.5px; font-weight: 500; }
.bar__nav a { text-decoration: none; color: var(--ink-2); padding: 4px 0; border-bottom: 2px solid transparent; transition: color .2s, border-color .2s; }
.bar__nav a:hover { color: var(--ink); border-color: var(--red); }

.theme {
  width: 38px; height: 38px; flex: none; display: grid; place-items: center;
  border-radius: 50%; border: 1.5px solid var(--ink); background: transparent; cursor: pointer;
  transition: background-color .2s, color .2s;
}
.theme:hover { background: var(--ink); color: var(--paper); }
.theme svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.i-moon { display: none; }
:root[data-theme="dark"] .i-moon { display: inline; }
:root[data-theme="dark"] .i-sun { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-moon { display: inline; }
  :root:not([data-theme="light"]) .i-sun { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: 64px; align-items: center;
  padding-top: clamp(48px, 8vw, 104px); padding-bottom: clamp(56px, 8vw, 96px);
}
.kicker { display: inline-flex; align-items: center; gap: 10px; font: 600 13px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); }
.kicker__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 4px var(--red-soft); }
.hero__title {
  margin-top: 26px;
  font: 800 clamp(46px, 7.4vw, 96px)/.98 var(--display);
  letter-spacing: -.045em;
}
.hero__bn {
  font: 800 1.05em/1 var(--bangla); letter-spacing: 0;
  color: var(--red);
}
.stamp {
  display: inline-block; position: relative;
  padding: 0 .14em; margin: 0 .04em;
  color: var(--red); border: .07em solid currentColor; border-radius: .14em;
  transform: rotate(-6deg); transform-origin: 50% 60%;
  font-family: var(--mono); font-weight: 600; letter-spacing: -.06em;
  line-height: 1.05;
}
.hero__lead { margin-top: 28px; max-width: 590px; font-size: clamp(17px, 1.5vw, 19px); color: var(--ink-2); }
.hero__lead strong { color: var(--ink); font-weight: 700; background: linear-gradient(transparent 62%, color-mix(in srgb, var(--mustard) 45%, transparent) 0); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px;
  font: 700 15px/1 var(--display); text-decoration: none;
  border: 1.5px solid var(--ink); cursor: pointer;
  transition: transform .25s var(--ease), background-color .2s, color .2s, box-shadow .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn--red { background: var(--red); border-color: var(--red); color: var(--on-red); box-shadow: 4px 4px 0 var(--ink); }
.btn--red:hover { box-shadow: 6px 6px 0 var(--ink); }
.btn--line:hover { background: var(--ink); color: var(--paper); }

/* Receipt */
.receipt {
  position: relative;
  padding: 26px 26px 30px;
  background: var(--paper-2);
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  box-shadow: 8px 8px 0 var(--red), var(--shadow);
  transform: rotate(1.6deg);
  font-family: var(--mono);
  font-size: 14px;
}
.receipt__head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-bottom: 14px; border-bottom: 1.5px dashed var(--line-2); }
.receipt__title { font: 800 22px/1 var(--display); letter-spacing: -.01em; text-transform: uppercase; }
.receipt__meta { font-size: 12px; color: var(--muted); white-space: nowrap; }
.receipt__meta b { color: var(--ink); font-weight: 600; }
.receipt__item { margin: 16px 0 6px; font-size: 19px; line-height: 1.45; }
.receipt__lines { margin-top: 12px; }
.receipt__lines div { display: flex; align-items: baseline; gap: 8px; padding: 8px 0; }
.receipt__lines div::before { content: ""; order: 1; flex: 1; border-bottom: 1.5px dotted var(--line-2); transform: translateY(-4px); }
.receipt__lines dt { order: 0; }
.receipt__lines dt small { font-size: 12px; color: var(--muted); margin-left: 6px; }
.receipt__lines dd { order: 2; font-weight: 600; font-variant-numeric: tabular-nums; }
.receipt__total { margin-top: 6px; border-top: 1.5px solid var(--ink); padding-top: 12px !important; }
.receipt__total dt { font-weight: 600; text-transform: uppercase; }
.receipt__total dd { color: var(--red); font-size: 20px; }
.receipt__foot { margin-top: 18px; text-align: center; font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.receipt__stamp {
  position: absolute; right: -34px; top: -38px;
  width: 104px; height: 104px; border-radius: 50%;
  background: color-mix(in srgb, var(--paper-2) 70%, transparent);
  display: grid; place-items: center; text-align: center;
  font-size: 22px; font-weight: 800; line-height: 1.05;
  color: var(--red); border: 3px solid currentColor;
  box-shadow: inset 0 0 0 4px var(--paper-2), inset 0 0 0 6px currentColor;
  transform: rotate(-16deg); opacity: .85;
  mix-blend-mode: multiply;
}
:root[data-theme="dark"] .receipt__stamp { mix-blend-mode: normal; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .receipt__stamp { mix-blend-mode: normal; } }

/* ---------- Ribbon ---------- */
.ribbon {
  overflow: hidden; background: var(--red); color: var(--on-red);
  border-block: 1.5px solid var(--ink);
  transform: rotate(-1.2deg); margin: 0 -20px;
}
.ribbon__track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.ribbon__track span { padding: 14px 0; font: 700 clamp(17px, 2vw, 22px)/1.2 var(--display); letter-spacing: -.01em; white-space: nowrap; }
.ribbon__track b { font-weight: 800; margin-right: 10px; font-size: 1.15em; }
.ribbon__track i { font-style: normal; padding: 14px 26px; opacity: .8; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding-top: clamp(72px, 9vw, 120px); }
.sec { display: flex; gap: 22px; align-items: flex-start; margin-bottom: 30px; max-width: 820px; }
.sec__num {
  flex: none; font-size: 60px; font-weight: 800; line-height: .8; color: var(--red);
  padding-top: 4px;
}
.sec__title { font: 800 clamp(34px, 4.6vw, 56px)/1 var(--display); letter-spacing: -.04em; }
.sec__desc { margin-top: 12px; color: var(--ink-2); max-width: 640px; }
.fine { margin-top: 16px; font: 400 13px/1.5 var(--mono); color: var(--muted); }

/* ---------- Calculator ---------- */
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.pill {
  padding: 8px 15px; border-radius: 999px;
  border: 1.5px solid var(--line-2); background: transparent;
  font: 600 13.5px/1 var(--display); color: var(--ink-2); cursor: pointer;
  transition: border-color .2s, background-color .2s, color .2s;
}
.pill:hover { border-color: var(--ink); color: var(--ink); }
.pill[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.slips { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.slip {
  position: relative; display: flex; flex-direction: column;
  background: var(--paper-2); border: 1.5px solid var(--ink); border-radius: 4px;
  box-shadow: 5px 5px 0 var(--slip-shadow, var(--ink));
  transition: box-shadow .2s, transform .2s;
}
.slip--bn { --slip-shadow: var(--red); }
.slip:focus-within { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 var(--slip-shadow, var(--ink)); }
.slip__tag {
  align-self: flex-start; margin: -1.5px 0 0 -1.5px;
  padding: 6px 12px; border-radius: 4px 0 4px 0;
  font: 700 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase;
  background: var(--ink); color: var(--paper);
}
.slip--bn .slip__tag { background: var(--red); color: var(--on-red); font: 700 14px/1 var(--bangla); letter-spacing: 0; }
.slip textarea {
  width: 100%; min-height: 110px; resize: vertical;
  padding: 14px 18px 6px; border: 0; background: transparent;
  font-size: 19px; line-height: 1.55;
}
.slip textarea.bn { font-size: 22px; line-height: 1.5; }
.slip textarea:focus { outline: none; }
.slip__meta { padding: 0 18px 12px; font: 400 12px/1.4 var(--mono); color: var(--muted); min-height: 1.4em; }

.status {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: 28px 0 12px; font: 400 13px/1.5 var(--mono); color: var(--ink-2);
}
.status__dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.status--wait .status__dot { background: var(--mustard); box-shadow: 0 0 0 4px color-mix(in srgb, var(--mustard) 20%, transparent); animation: blink 1s ease-in-out infinite; }
.status--err .status__dot { background: var(--red); box-shadow: 0 0 0 4px var(--red-soft); }
.status__bar { flex: 0 1 180px; height: 6px; border-radius: 3px; background: var(--paper-3); overflow: hidden; }
.status__bar i { display: block; height: 100%; width: calc(var(--p, 0) * 100%); background: var(--mustard); transition: width .2s; }
@keyframes blink { 50% { opacity: .35; } }

/* Ledger */
.ledger { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.ledger__head, .lrow {
  display: grid; grid-template-columns: 170px minmax(0, 1fr) 150px 170px;
  gap: 20px; align-items: center; padding: 14px 22px;
}
.ledger__head {
  font: 600 11.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  border-bottom: 1.5px solid var(--ink);
}
.ledger__head .r, .lrow .r { text-align: right; }
.key { font-style: normal; margin-left: 8px; padding: 2px 7px; border-radius: 3px; letter-spacing: 0; text-transform: none; }
.key--bn { background: var(--red); color: var(--on-red); font: 600 12px/1.3 var(--bangla); }
.key--en { background: var(--ink); color: var(--paper); }
.lrow { border-bottom: 1px dashed var(--line-2); transition: background-color .2s; }
.lrow:last-child { border-bottom: 0; }
.lrow:hover { background: var(--paper-3); }
.lrow__name { font-weight: 700; font-size: 16px; line-height: 1.2; }
.lrow__name small { display: block; font: 400 12px/1.4 var(--mono); color: var(--muted); margin-top: 3px; }
.bars { display: grid; gap: 6px; }
.bar { display: flex; align-items: center; gap: 10px; font: 400 12.5px/1 var(--mono); color: var(--ink-2); }
.bar i { display: block; height: 10px; min-width: 3px; width: var(--w); border-radius: 2px; transition: width .6s var(--ease); }
.bar--bn i { background: var(--red); }
.bar--en i { background: var(--ink); }
.mult { font: 600 26px/1 var(--mono); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.mult--hi {
  display: inline-block; color: var(--red);
  padding: 3px 8px; border: 2px solid currentColor; border-radius: 6px;
  transform: rotate(-4deg);
}
.taka { font: 600 17px/1.2 var(--mono); }
.taka small { display: block; font-size: 11.5px; font-weight: 400; color: var(--muted); }
.na { font: 400 13px/1.4 var(--mono); color: var(--muted); }
.load {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-radius: 999px; border: 1.5px solid var(--ink);
  background: transparent; font: 600 12.5px/1 var(--mono); cursor: pointer;
  transition: background-color .2s, color .2s;
}
.load:hover { background: var(--ink); color: var(--paper); }
.load:disabled { cursor: progress; border-style: dashed; }
.load:disabled:hover { background: transparent; color: inherit; }

/* ---------- Under the knife ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 0; border: 1.5px solid var(--ink); border-radius: 4px; width: fit-content; max-width: 100%; overflow: hidden; margin-bottom: 18px; }
.tab {
  padding: 10px 16px; border: 0; border-right: 1.5px solid var(--ink); background: var(--paper-2);
  font: 600 13.5px/1 var(--display); color: var(--ink-2); cursor: pointer;
  transition: background-color .2s, color .2s;
}
.tab:last-child { border-right: 0; }
.tab:hover { color: var(--ink); background: var(--paper-3); }
.tab[aria-selected="true"] { background: var(--ink); color: var(--paper); }

.cut { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.cut__stats { display: flex; flex-wrap: wrap; gap: 8px 28px; padding: 16px 22px; border-bottom: 1.5px solid var(--ink); font: 400 13px/1.5 var(--mono); color: var(--ink-2); }
.cut__stats b { font-weight: 600; color: var(--ink); }
.cut__stats .hl b { color: var(--red); }
.cut__row { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 18px; padding: 22px; }
.cut__row + .cut__row { border-top: 1px dashed var(--line-2); }
.cut__lang { font: 600 12px/1.6 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding-top: 8px; }
.cut__lang.bn { font: 700 16px/1.6 var(--bangla); letter-spacing: 0; color: var(--red); text-transform: none; }

.pieces { display: flex; flex-wrap: wrap; gap: 12px 6px; align-items: flex-start; }
.pc {
  position: relative; display: inline-block;
  padding: 5px 8px 4px; border-radius: 3px;
  white-space: pre; line-height: 1.25;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  font-size: 17px;
}
.pieces.bn .pc { font-size: 23px; padding: 3px 9px 1px; }
.pc:nth-child(4n+2) { background: color-mix(in srgb, var(--mustard) 18%, var(--paper)); }
.pc:nth-child(4n+3) { background: color-mix(in srgb, var(--green) 14%, var(--paper)); }
.pc:nth-child(4n+4) { background: var(--paper-3); }
.pc.multi { border-color: var(--red); background: var(--red-soft); color: var(--ink); }
.pc .sp { color: var(--muted); }
.pc sup {
  position: absolute; top: -9px; right: -7px;
  min-width: 18px; height: 18px; padding: 0 4px; border-radius: 9px;
  display: grid; place-items: center;
  font: 700 10.5px/1 var(--mono); background: var(--red); color: var(--on-red);
}
.pieces__more { align-self: center; font: 400 13px var(--mono); color: var(--muted); }
.pieces__empty { font: 400 14px/1.5 var(--mono); color: var(--muted); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* ---------- Ranking ---------- */
.rank { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); padding: 10px 0; }
.rk { display: grid; grid-template-columns: 34px 160px minmax(0, 1fr) 84px; gap: 18px; align-items: center; padding: 12px 22px; }
.rk__pos { font: 600 13px/1 var(--mono); color: var(--muted); }
.rk__name { font-weight: 700; line-height: 1.2; }
.rk__name small { display: block; font: 400 12px/1.4 var(--mono); color: var(--muted); }
.rk__track { position: relative; height: 22px; background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 10%); }
.rk__fill { position: absolute; inset: 0 auto 0 0; width: var(--w); background: var(--red); border-radius: 0 2px 2px 0; transition: width .9s var(--ease); }
.rk:nth-last-child(-n+2) .rk__fill { background: var(--green); }
.rk__par { position: absolute; top: -6px; bottom: -6px; left: var(--par); border-left: 2px dashed var(--ink); }
.rk__par span { position: absolute; top: -16px; left: -2px; font: 600 10px/1 var(--mono); white-space: nowrap; transform: translateX(-50%); color: var(--ink-2); }
.rk:not(:first-child) .rk__par span { display: none; }
.rk__val { text-align: right; font: 600 22px/1 var(--mono); letter-spacing: -.04em; }
.rk:first-child { padding-top: 22px; }

/* ---------- Why ---------- */
.why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.why__card {
  position: relative; padding: 28px 26px 26px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2);
  overflow: hidden;
}
.why__n { position: absolute; right: 14px; top: -14px; font-size: 120px; font-weight: 800; line-height: 1; color: var(--red-soft); pointer-events: none; }
.why__card h3 { position: relative; font: 800 26px/1.1 var(--display); letter-spacing: -.03em; margin-bottom: 10px; }
.why__card p { position: relative; color: var(--ink-2); font-size: 15.5px; }
.cause { margin-top: 18px; padding: 28px; border-radius: 4px; background: var(--ink); color: var(--paper); }
.cause h3 { font: 800 22px/1.2 var(--display); letter-spacing: -.02em; }
.cause p { margin-top: 10px; max-width: 860px; color: color-mix(in srgb, var(--paper) 80%, transparent); }
.cause .bn { font-size: 1.25em; color: var(--mustard); font-weight: 800; }

/* ---------- Footer ---------- */
.foot { margin-top: clamp(72px, 9vw, 120px); border-top: 1.5px solid var(--ink); padding: 30px 0 44px; }
.foot__in { display: grid; gap: 10px; }
.foot__sig { font-weight: 700; }
.foot__fine { font: 400 12.5px/1.6 var(--mono); color: var(--muted); max-width: 820px; }
.foot a { text-decoration-color: var(--red); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 56px; }
  .receipt { max-width: 440px; }
  .ledger__head, .lrow { grid-template-columns: 140px minmax(0, 1fr) 120px 130px; gap: 14px; }
}
@media (max-width: 800px) {
  .bar__nav { display: none; }
  .theme { margin-left: auto; }
  .slips, .why { grid-template-columns: 1fr; }
  .ledger__head { display: none; }
  .lrow { grid-template-columns: 1fr auto; gap: 12px 16px; padding: 16px 18px; }
  .lrow .bars { grid-column: 1 / -1; grid-row: 2; }
  .lrow .taka-cell { grid-column: 1 / -1; text-align: left; }
  .taka small { display: inline; margin-left: 6px; }
  .rk { grid-template-columns: 26px minmax(0, 1fr) 72px; gap: 10px 14px; padding: 12px 18px; }
  .rk__track { grid-column: 1 / -1; grid-row: 2; }
  .cut__row { grid-template-columns: 1fr; gap: 10px; }
  .cut__lang { padding-top: 0; }
}
@media (max-width: 560px) {
  .wrap { padding-left: 16px; padding-right: 16px; }
  .receipt__foot { text-align: left; }
  .sec { gap: 14px; }
  .sec__num { font-size: 44px; }
  .receipt { padding: 22px 18px 26px; }
  .receipt__stamp { width: 80px; height: 80px; font-size: 17px; right: -8px; top: auto; bottom: -34px; }
  .cut__stats, .cut__row { padding-left: 16px; padding-right: 16px; }
  .tab { padding: 9px 12px; font-size: 13px; }
}
/* =========================================================
   Added components: 3 steps, check-it-yourself, token IDs,
   proof & method, FAQ. Same tokens and visual language as above.
   ========================================================= */

/* ---------- 3 steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { display: flex; flex-direction: column; padding: 26px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.step__n { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--red); color: var(--on-red); font: 600 15px/1 var(--mono); margin-bottom: 18px; }
.step h3 { font: 800 22px/1.15 var(--display); letter-spacing: -.02em; margin-bottom: 8px; }
.step p { color: var(--ink-2); font-size: 15.5px; }
.step > p { margin-bottom: 20px; }
.step__demo { margin-top: auto; padding-top: 20px; border-top: 1px dashed var(--line-2); display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.step__demo .pieces { gap: 12px 6px; }
.step__count { font: 400 13px/1 var(--mono); color: var(--muted); }
.step__bill { flex-direction: column; align-items: stretch; gap: 8px; }
.step__line { display: flex; justify-content: space-between; align-items: baseline; font: 400 15px/1.4 var(--mono); }
.step__line.bn span { font: 600 20px/1.3 var(--bangla); }
.step__line b { font-weight: 600; }
.step__line.bn b { color: var(--red); }
.step__x { align-self: flex-start; margin-top: 4px; padding: 3px 9px; border: 2px solid currentColor; border-radius: 6px; color: var(--red); font: 600 15px/1.2 var(--mono); transform: rotate(-3deg); }

/* ---------- Token IDs toggle ---------- */
.toggle { position: relative; display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; margin: 0 0 16px; font: 600 14px/1.4 var(--display); cursor: pointer; }
.toggle input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.toggle__box { position: relative; width: 40px; height: 23px; flex: none; border-radius: 999px; border: 1.5px solid var(--ink); background: var(--paper-2); transition: background-color .2s, border-color .2s; }
.toggle__box::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: var(--ink); transition: transform .25s var(--ease), background-color .2s; }
.toggle input:checked + .toggle__box { background: var(--red); border-color: var(--red); }
.toggle input:checked + .toggle__box::after { transform: translateX(17px); background: var(--on-red); }
.toggle input:focus-visible + .toggle__box { outline: 2.5px solid var(--red); outline-offset: 3px; }
.toggle small { font: 400 12px/1.4 var(--mono); color: var(--muted); }
.pc__ids { display: none; }
.cut.show-ids .pc__ids { display: block; margin-top: 3px; font: 400 10.5px/1.2 var(--mono); color: var(--muted); text-align: center; }

/* ---------- Check it yourself ---------- */
.verify { margin-top: 24px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px 32px; align-items: center; padding: 26px; border: 1.5px dashed var(--ink); border-radius: 4px; }
.verify h3 { font: 800 22px/1.2 var(--display); letter-spacing: -.02em; }
.verify p { margin-top: 6px; color: var(--ink-2); }
.verify__steps { margin: 14px 0 0; padding-left: 20px; font: 400 13px/1.6 var(--mono); color: var(--ink-2); }
.verify__steps li { margin: 4px 0; }
.verify__steps b { color: var(--ink); font-weight: 600; }
.verify__actions { display: flex; flex-direction: column; gap: 10px; min-width: 240px; }
.verify__actions .load { justify-content: center; padding: 10px 14px; }
.verify__open { justify-content: center; padding: 12px 18px; font-size: 14px; }

/* ---------- Proof & method ---------- */
.sub { margin: 44px 0 14px; font: 600 12.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.sec + .sub { margin-top: 0; }
.badge { display: inline-block; padding: 5px 9px; border-radius: 3px; font: 600 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; border: 1.5px solid transparent; }
.badge--measured { background: var(--green); color: var(--paper); }
.badge--doc { background: var(--ink); color: var(--paper); }
.badge--exp { background: color-mix(in srgb, var(--mustard) 20%, var(--paper-2)); color: var(--ink); border: 1.5px dashed var(--mustard); }
.why__card .badge { position: relative; margin-bottom: 14px; }

.claims { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.claim { padding: 22px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.claim h4 { margin: 14px 0 8px; font: 700 18px/1.3 var(--display); letter-spacing: -.01em; }
.claim p { color: var(--ink-2); font-size: 15px; }
.claim a, .refs a, .src a { text-decoration-color: var(--red); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }

.flow { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 32px; }
.flow li { position: relative; padding: 8px 15px; border: 1.5px solid var(--ink); border-radius: 999px; background: var(--paper-2); font: 600 14px/1.2 var(--display); }
.flow li:nth-child(2) { background: var(--ink); color: var(--paper); }
.flow li small { margin-left: 6px; font: 400 11.5px var(--mono); opacity: .75; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -24px; top: 50%; transform: translateY(-50%); color: var(--red); font-weight: 800; }

.method { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.method div { padding: 16px 22px; border-top: 1px dashed var(--line-2); }
.method div:nth-child(-n+2) { border-top: 0; }
.method div:nth-child(odd) { border-right: 1px dashed var(--line-2); }
.method dt { font: 600 11.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.method dd { margin-top: 5px; font-size: 15px; color: var(--ink-2); }
.method dd b { color: var(--ink); }
.method code { font: 400 13px var(--mono); padding: 1px 5px; border-radius: 3px; background: var(--paper-3); }

.src { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.src__row { display: grid; grid-template-columns: 1fr 1.5fr 1fr 1fr; gap: 16px; align-items: center; padding: 12px 22px; border-bottom: 1px dashed var(--line-2); font-size: 14.5px; }
.src__row:last-child { border-bottom: 0; }
.src__head { font: 600 11.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border-bottom: 1.5px solid var(--ink); }
.src__name { font-weight: 700; line-height: 1.25; }
.src__name small { display: block; font: 400 12px/1.4 var(--mono); color: var(--muted); }
.src a { font: 400 13px/1.4 var(--mono); word-break: break-all; }
.src .ok { font: 600 13px var(--mono); color: var(--green); }

.downloads { margin-top: 28px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px 32px; padding: 28px; border-radius: 4px; background: var(--ink); color: var(--paper); }
.downloads h3 { font: 800 22px/1.2 var(--display); letter-spacing: -.02em; }
.downloads p { margin-top: 6px; max-width: 560px; color: color-mix(in srgb, var(--paper) 78%, transparent); }
.downloads .btn--red { box-shadow: 4px 4px 0 var(--mustard); }

.refs { list-style: none; margin: 0; padding: 0; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.refs li { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 4px 20px; padding: 14px 22px; border-bottom: 1px dashed var(--line-2); }
.refs li:last-child { border-bottom: 0; }
.refs a { font-weight: 600; font-size: 15.5px; }
.refs span { font: 400 12.5px/1.4 var(--mono); color: var(--muted); white-space: nowrap; }

/* ---------- FAQ ---------- */
.faq { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.faq details { border-bottom: 1px dashed var(--line-2); }
.faq details:last-child { border-bottom: 0; }
.faq summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; font: 700 17px/1.35 var(--display); cursor: pointer; transition: background-color .2s; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--paper-3); }
.faq summary::after { content: "+"; flex: none; font: 600 22px/1 var(--mono); color: var(--red); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 22px 20px; max-width: 800px; color: var(--ink-2); }

@media (max-width: 900px) {
  .steps, .claims { grid-template-columns: 1fr; }
  .verify { grid-template-columns: 1fr; }
  .verify__actions { min-width: 0; }
  .method { grid-template-columns: 1fr; }
  .method div:nth-child(2) { border-top: 1px dashed var(--line-2); }
  .method div:nth-child(odd) { border-right: 0; }
}
@media (max-width: 700px) {
  .src__head { display: none; }
  .src__row { grid-template-columns: 1fr; gap: 4px; padding: 14px 18px; }
  .flow { gap: 10px 28px; }
  .refs span { white-space: normal; }
}

/* =========================================================
   Added in step 2: language switch, Bangla mode, try a word,
   piece inspector, per-sentence heatmap.
   ========================================================= */

/* ---------- Language switch ---------- */
.lang {
  height: 38px; padding: 0 14px; flex: none;
  border-radius: 999px; border: 1.5px solid var(--ink); background: transparent; cursor: pointer;
  font: 700 14px/1 var(--display);
  transition: background-color .2s, color .2s;
}
.lang:lang(bn) { font: 700 15px/1 var(--bangla); }
.lang:hover { background: var(--ink); color: var(--paper); }
.bar__nav + .lang { margin-left: 4px; }

/* ---------- Bangla mode: Bangla-first fonts, no tight tracking ---------- */
:root[lang="bn"] {
  --display: "Anek Bangla", "Bricolage Grotesque", "Nirmala UI", sans-serif;
  --mono: "JetBrains Mono", "Anek Bangla", ui-monospace, Consolas, monospace;
}
:root[lang="bn"] :is(.hero__title, .sec__title, .step h3, .why__card h3, .card h3, .receipt__title, .cause h3, .verify h3, .downloads h3, .claim h4) { letter-spacing: 0; }
:root[lang="bn"] .hero__title { font-size: clamp(38px, 5.4vw, 70px); line-height: 1.12; }
:root[lang="bn"] .sec__title { line-height: 1.15; }
:root[lang="bn"] :is(.kicker, .sub, .method dt, .ledger__head, .src__head, .badge, .receipt__foot, .slip__tag, .toggle small) { letter-spacing: .02em; }

/* ---------- Try a word ---------- */
.try { margin-top: 28px; padding: 22px 24px; border: 1.5px dashed var(--ink); border-radius: 4px; }
.try__label { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; margin-bottom: 14px; }
.try__label b { font: 800 20px/1.2 var(--display); letter-spacing: -.01em; }
.try__label small { font: 400 12.5px/1.4 var(--mono); color: var(--muted); }
.try__row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; }
.try__input {
  flex: 0 1 280px; min-width: 0; width: 100%;
  padding: 10px 14px; border-radius: 4px;
  border: 1.5px solid var(--ink); background: var(--paper-2);
  font-size: 20px; line-height: 1.3;
  box-shadow: 4px 4px 0 var(--red);
}
.try__input:focus { outline: none; box-shadow: 6px 6px 0 var(--red); }
.try__out { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; min-height: 40px; }
.try__out .pieces { gap: 12px 6px; }
.try__msg { font: 400 13px/1.5 var(--mono); color: var(--muted); }

/* ---------- Piece inspector ---------- */
.cut .pc[data-i] { cursor: pointer; transition: transform .15s; }
.cut .pc[data-i]:hover { transform: translateY(-2px); }
.cut .pc.is-on { outline: 2.5px solid var(--red); outline-offset: 2px; }
.inspect { padding: 18px 22px; border-top: 1.5px solid var(--ink); background: var(--paper); }
.inspect__hint { font: 400 13px/1.5 var(--mono); color: var(--muted); }
.inspect__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.inspect__title { font: 600 12px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.inspect__close {
  width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%;
  border: 1.5px solid var(--ink); background: transparent; cursor: pointer; font: 600 18px/1 var(--mono);
}
.inspect__close:hover { background: var(--ink); color: var(--paper); }
.inspect__body { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 16px 28px; }
.inspect__piece .pc { font: 400 34px/1.2 var(--bangla); padding: 6px 14px 2px; }
.inspect__piece .pc__ids { display: block; margin-top: 4px; font: 400 11px/1.2 var(--mono); color: var(--muted); text-align: center; }
.inspect__table { border-collapse: collapse; font: 400 13.5px/1.4 var(--mono); }
.inspect__table th { text-align: left; padding: 6px 18px 6px 0; font-weight: 600; font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); border-bottom: 1.5px solid var(--ink); }
.inspect__table td { padding: 7px 18px 7px 0; border-bottom: 1px dashed var(--line-2); }
.inspect__ch { font: 400 22px/1 var(--bangla); }
.inspect__note { margin-top: 14px; max-width: 720px; color: var(--ink-2); font-size: 15px; }

/* ---------- Per-sentence heatmap ---------- */
.breakdown { margin-top: 14px; border: 1.5px solid var(--ink); border-radius: 4px; background: var(--paper-2); }
.breakdown summary {
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 16px 22px; cursor: pointer; font: 700 16px/1.3 var(--display);
  transition: background-color .2s;
}
.breakdown summary::-webkit-details-marker { display: none; }
.breakdown summary:hover { background: var(--paper-3); }
.breakdown summary::after { content: "+"; font: 600 22px/1 var(--mono); color: var(--red); }
.breakdown[open] summary::after { content: "−"; }
.breakdown__desc { padding: 0 22px 14px; max-width: 760px; color: var(--ink-2); font-size: 15px; }
.heat-wrap { overflow-x: auto; padding: 0 22px 22px; }
.heat { border-collapse: separate; border-spacing: 4px; font: 400 13px/1.2 var(--mono); min-width: 640px; }
.heat th { font-weight: 600; text-align: left; white-space: nowrap; padding: 4px 8px 4px 0; }
.heat thead th { text-align: center; vertical-align: bottom; font-size: 12px; color: var(--ink-2); }
.heat thead th small { display: block; font-weight: 400; font-size: 10.5px; color: var(--muted); margin-top: 2px; }
.heat tbody th { font: 700 14px/1.2 var(--display); }
.heat__c {
  text-align: center; padding: 9px 6px; border-radius: 3px;
  background: color-mix(in srgb, var(--red) var(--h), var(--paper-3));
  font-variant-numeric: tabular-nums;
}
.heat__dark { color: var(--on-red); font-weight: 600; }
.heat__fair { background: color-mix(in srgb, var(--green) 30%, var(--paper-3)); }

/* ---------- FLORES-200 study (reuses the ranking rows) ---------- */
.flores__intro { max-width: 780px; margin-bottom: 16px; color: var(--ink-2); }
.flores__links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.rk__ci { position: absolute; top: 50%; left: var(--l); width: calc(var(--r) - var(--l)); height: 2px; margin-top: -1px; background: var(--ink); }
.rk__ci::before, .rk__ci::after { content: ""; position: absolute; top: -5px; width: 2px; height: 12px; background: var(--ink); }
.rk__ci::before { left: 0; }
.rk__ci::after { right: 0; }
.rk__val small { display: block; margin-top: 4px; font: 400 11px/1.3 var(--mono); letter-spacing: 0; color: var(--muted); white-space: nowrap; }
#flores .rk { grid-template-columns: 34px 160px minmax(0, 1fr) 130px; }

@media (max-width: 800px) {
  #flores .rk { grid-template-columns: 26px minmax(0, 1fr) 110px; }
  .lang { margin-left: auto; }
  .lang + .theme { margin-left: 0; }
}
@media (max-width: 560px) {
  .try { padding: 18px 16px; }
  .inspect { padding: 16px; }
  .heat-wrap { padding: 0 12px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}