:root {
  --bg: #0b1220;
  --bg-2: #101a2c;
  --surface: #16233a;
  --surface-2: #1d2f4c;
  --line: rgba(255,255,255,.10);
  --line-2: rgba(255,255,255,.19);
  --hover: rgba(255,255,255,.07);
  --hover-soft: rgba(255,255,255,.03);
  --chip: rgba(255,255,255,.05);
  --ink: #eef3fa;
  --ink-2: #a3b4cc;
  --ink-3: #6f8199;
  --a1: #2dd4bf;
  --a1-deep: #0f9b8a;
  --a2: #fb923c;
  --a3: #818cf8;
  --warn: #f87171;
  --grad: linear-gradient(108deg, var(--a1), var(--a1-deep));
  --grad-2: linear-gradient(108deg, var(--a2), var(--a3));
  --sans: "Nirmala UI","Segoe UI","Shonar Bangla",system-ui,-apple-system,Arial,sans-serif;
  --display: Corbel,"Nirmala UI","Segoe UI",Candara,sans-serif;
  --mono: "Cascadia Mono",Consolas,ui-monospace,monospace;
  --r: 16px;
  --r-s: 13px;
  --shadow: 0 20px 50px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.68 var(--sans); -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .55;
  background:
    radial-gradient(60% 42% at 20% -6%, rgba(45,212,191,.12), transparent 70%),
    radial-gradient(38% 28% at 6% 6%, rgba(251,146,60,.08), transparent 72%);
}
.wrap { width: 100%; padding-inline: clamp(15px, 3.4vw, 52px); margin-inline: auto; position: relative; z-index: 1; }

h1, h2, h3, h4 { font-family: var(--display); font-weight: 700; line-height: 1.15; margin: 0; }
p { margin: 0 0 14px; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
::selection { background: var(--a1); color: #04231f; }
:focus-visible { outline: 2px solid var(--a2); outline-offset: 3px; border-radius: 5px; }
.lb { text-transform: lowercase !important; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 25px; border: 0; border-radius: var(--r-s); cursor: pointer; text-decoration: none;
  font: 700 14.5px/1 var(--display); letter-spacing: .045em; text-transform: uppercase;
  white-space: nowrap; transition: transform .16s, box-shadow .2s;
}
.btn-main { background: var(--grad); color: #04231f; box-shadow: 0 9px 26px rgba(45,212,191,.26); }
.btn-main:hover { transform: translateY(-2px); box-shadow: 0 15px 34px rgba(45,212,191,.4); }
.btn-alt { background: var(--grad-2); color: #2b1403; box-shadow: 0 9px 24px rgba(0,0,0,.3); }
.btn-alt:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line-2); }
.btn-ghost:hover { background: var(--hover); transform: translateY(-2px); }
.btn-sm { padding: 9px 17px; font-size: 12.5px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

.topbar { position: sticky; top: 0; z-index: 60; background: rgba(11,18,32,.95); border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand .wordmark b { display: block; font: 700 17px/1 var(--display); }
.brand .wordmark span { display: block; color: var(--ink-3); font: 600 9px/1 var(--display); letter-spacing: .21em; text-transform: uppercase; margin-top: 3px; }
.topnav { display: flex; gap: 3px; margin-inline-start: auto; }
.topnav a { padding: 8px 13px; border-radius: var(--r-s); font: 600 13px/1 var(--display); color: var(--ink-2); text-decoration: none; transition: .16s; }
.topnav a:hover { color: var(--ink); background: var(--hover); }
.tools { display: flex; align-items: center; gap: 9px; }
.lang { display: inline-flex; align-items: center; }
.lang a { padding: 6px 8px; color: var(--ink-3); text-decoration: none; font: 700 12px/1 var(--display); letter-spacing: .07em; border-radius: 7px; }
.lang a:hover { color: var(--ink); background: var(--hover); }
.lang a.on { color: var(--a2); }
.lang a + a::before { content: "/"; margin-inline: 0 8px; color: var(--ink-3); opacity: .5; font-weight: 400; }

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); padding: clamp(38px, 5.2vw, 88px) 0 clamp(32px, 4.4vw, 66px); }
.hero::after { content: ""; position: absolute; inset: auto 0 -1px 0; height: 2px; background: linear-gradient(90deg, transparent, var(--a1), var(--a2), transparent); opacity: .7; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr); gap: clamp(22px, 3.4vw, 52px); align-items: center; }
.hero.mid { text-align: center; }
.hero.mid .lede { margin-inline: auto; }
.hero.mid .hero-cta { justify-content: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 6px 14px; border-radius: 999px; background: rgba(251,146,60,.13); box-shadow: inset 0 0 0 1px rgba(251,146,60,.32); color: var(--a2); font: 700 11px/1 var(--display); letter-spacing: .16em; text-transform: uppercase; margin-bottom: 19px; }
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--a2); animation: pulse 2.2s infinite; }
@keyframes pulse { 50% { opacity: .25; } }
.hero h1 { font-size: clamp(28px, 4.8vw, 56px); letter-spacing: -.012em; margin-bottom: 17px; }
.hero h1 em { font-style: normal; color: var(--a1); }
.hero .lede { color: var(--ink-2); font-size: clamp(15px, 1.2vw, 17.5px); max-width: 70ch; margin-bottom: 24px; }
.hero-cta { display: flex; gap: 11px; flex-wrap: wrap; align-items: center; }
.hero-note { color: var(--ink-3); font-size: 12.5px; margin: 15px 0 0; }

.offer { position: relative; border-radius: var(--r); overflow: hidden; padding: 26px 28px; background: linear-gradient(158deg, rgba(45,212,191,.12), var(--surface) 55%); box-shadow: inset 0 0 0 1px rgba(45,212,191,.28), var(--shadow); }
.offer .tag { display: inline-block; padding: 5px 13px; border-radius: 999px; background: var(--grad); color: #04231f; font: 700 10.5px/1.5 var(--display); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.offer .big { font: 700 clamp(27px, 3.3vw, 42px)/1.05 var(--display); }
.offer .big em { font-style: normal; color: var(--a1); }
.offer p { color: var(--ink-2); font-size: 14.5px; margin: 12px 0 17px; }
.offer ul { list-style: none; margin: 0 0 19px; padding: 0; display: grid; gap: 9px; }
.offer li { position: relative; padding-inline-start: 17px; font-size: 14px; color: var(--ink-2); }
.offer li::before { content: ""; position: absolute; inset-inline-start: 0; top: 8px; width: 11px; height: 2px; border-radius: 2px; background: var(--a1); top: 12px; }
.offer li b { color: var(--ink); }
.offer .btn { width: 100%; }
.offer .fine { color: var(--ink-3); font-size: 11.5px; margin: 12px 0 0; text-align: center; }

.figures { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-top: 26px; }
.fig { background: var(--surface); border-radius: var(--r-s); padding: 18px 20px; box-shadow: inset 0 0 0 1px var(--line); }
.fig .v { font: 700 clamp(21px, 2.5vw, 30px)/1 var(--mono); color: var(--a2); }
.fig .l { color: var(--ink-2); font-size: 13px; margin-top: 7px; }

.slider { padding: clamp(20px, 2.4vw, 30px) 0 0; }
.slbox { position: relative; }
.slides { display: grid; grid-auto-flow: column; grid-auto-columns: 100%; gap: 12px; overflow-x: auto; overflow-y: hidden; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; scrollbar-width: none; border-radius: var(--r); }
.slides::-webkit-scrollbar { display: none; }
.slide { position: relative; scroll-snap-align: center; display: block; border-radius: var(--r); overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); transition: box-shadow .18s; }
.slide:hover { box-shadow: inset 0 0 0 1px rgba(45,212,191,.28), var(--shadow); }
.slide img { display: block; width: 100%; height: auto; }
.slide-txt { position: absolute; inset-block: 0; inset-inline-start: 0; width: min(52%, 520px); padding: clamp(14px, 3vw, 34px); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 8px; }
.slide-txt b { font: 700 clamp(16px, 2.5vw, 30px)/1.15 var(--display); color: #fff; text-shadow: 0 2px 14px rgba(0,0,0,.5); }
.slide-txt .s { color: rgba(255,255,255,.86); font-size: clamp(11px, 1.25vw, 15px); line-height: 1.4; text-shadow: 0 1px 10px rgba(0,0,0,.5); }
.slide-txt .fake-btn { margin-top: 4px; padding: 9px 18px; border-radius: 13px; background: var(--grad); color: #04231f; font: 700 12.5px/1 var(--display); letter-spacing: .03em; white-space: nowrap; }
@media (max-width: 560px) {
  .slide-txt .s { display: none; }
  .slide-txt { width: 60%; gap: 6px; }
}
.slnav { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border: 0; border-radius: 999px; cursor: pointer; background: rgba(11,18,32,.95); box-shadow: inset 0 0 0 1px var(--line-2); opacity: 0; transition: opacity .18s; }
.slnav::before { content: ""; position: absolute; top: 13px; left: 14px; width: 11px; height: 11px; border-top: 2px solid var(--ink); border-inline-start: 2px solid var(--ink); }
.slnav.prev { inset-inline-start: 12px; }
.slnav.prev::before { transform: rotate(-45deg); }
.slnav.next { inset-inline-end: 12px; }
.slnav.next::before { left: 9px; transform: rotate(135deg); }
.slbox:hover .slnav, .slnav:focus-visible { opacity: 1; }
.sldots { display: flex; gap: 7px; justify-content: center; margin-top: 13px; }
.sldot { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 999px; background: var(--line-2); cursor: pointer; transition: .18s; }
.sldot.on { width: 22px; background: var(--a1); }
@media (max-width: 720px) {
  .slnav { display: none; }
}

.sec { padding: clamp(34px, 4.3vw, 70px) 0; border-top: 1px solid var(--line); }
.sec.alt { background: var(--bg-2); }
.sec-head { text-align: start; margin-bottom: 28px; }
.sec-head h2 { font-size: clamp(22px, 2.8vw, 36px); max-width: 30ch; margin: 0 0 12px; }
.sec-head .sub { color: var(--ink-2); font-size: 15px; margin: 12px 0 0; max-width: 84ch; }
.kicker { display: inline-flex; align-items: center; gap: 9px; font: 700 10.5px/1 var(--display); letter-spacing: .21em; text-transform: uppercase; color: var(--a3); margin-bottom: 11px; }

.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 16px; }
.cols.two { grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); }
.card { background: var(--surface); border-radius: var(--r); padding: 23px 25px; box-shadow: inset 0 0 0 1px var(--line); transition: .18s; }
.card:hover { background: var(--surface-2); }
.card h3 { font-size: 17px; margin-bottom: 11px; }
.card p { color: var(--ink-2); font-size: 14.5px; margin: 0 0 11px; }
.card p:last-child { margin-bottom: 0; }
.card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.card li { position: relative; padding-inline-start: 17px; color: var(--ink-2); font-size: 14.5px; }
.card li::before { content: ""; position: absolute; inset-inline-start: 0; top: 9px; width: 11px; height: 2px; border-radius: 2px; background: var(--a1); top: 12px; }
.card b { color: var(--ink); }
.card.hi { background: linear-gradient(150deg, rgba(45,212,191,.12), var(--surface) 56%); box-shadow: inset 0 0 0 1px rgba(45,212,191,.28); }

.steps { display: grid; gap: 13px; counter-reset: st; }
.step { position: relative; background: var(--surface); border-radius: var(--r); padding: 20px 24px 20px 68px; box-shadow: inset 0 0 0 1px var(--line); }
.step::before { counter-increment: st; content: counter(st); position: absolute; inset-inline-start: 20px; top: 20px; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--grad); color: #04231f; font: 700 15px/1 var(--mono); }
.step h3 { font-size: 16.5px; margin-bottom: 8px; }
.step p { color: var(--ink-2); font-size: 14.5px; margin: 0; }

.tscroll { overflow-x: auto; border-radius: var(--r); box-shadow: inset 0 0 0 1px var(--line); background: var(--bg-2); }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
table.data th, table.data td { padding: 13px 17px; text-align: left; border-bottom: 1px solid var(--line); }
table.data thead th { background: var(--surface); color: var(--ink-3); font: 700 10px/1.3 var(--display); letter-spacing: .13em; text-transform: uppercase; white-space: nowrap; }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: var(--hover-soft); }
table.data .num { color: var(--a2); font-weight: 700; }
table.data tr.me { background: linear-gradient(90deg, rgba(45,212,191,.12), transparent); }
.yes { color: var(--a2); font-weight: 600; }
.no { color: var(--ink-3); }

.ctamini { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 20px; padding: 17px 23px; border-radius: var(--r); background: linear-gradient(102deg, rgba(45,212,191,.12), var(--surface) 62%); box-shadow: inset 0 0 0 1px rgba(45,212,191,.28); }
.ctamini b { font: 700 15.5px/1.3 var(--display); }
.ctamini .sub2 { display: block; color: var(--ink-2); font-size: 13.5px; margin-top: 4px; }

.ctabox { margin-top: 24px; padding: 32px; border-radius: var(--r); background: linear-gradient(150deg, rgba(45,212,191,.12), var(--surface) 58%); box-shadow: inset 0 0 0 1px rgba(45,212,191,.28); text-align: center; }
.ctabox h2 { font-size: clamp(21px, 2.5vw, 30px); margin-bottom: 12px; }
.ctabox p { color: var(--ink-2); font-size: 15px; max-width: 70ch; margin: 0 auto 20px; }

.alertbox { display: flex; gap: 15px; margin-top: 20px; padding: 21px 25px; border-radius: var(--r); background: linear-gradient(150deg, rgba(248,113,113,.1), var(--surface) 58%); box-shadow: inset 0 0 0 1px rgba(248,113,113,.26); border-inline-start: 3px solid var(--warn); }
.alertbox h3 { font-size: 16.5px; margin-bottom: 9px; }
.alertbox p { color: var(--ink-2); font-size: 14.5px; margin: 0 0 9px; }
.alertbox p:last-child { margin-bottom: 0; }

.faq { border-radius: var(--r); overflow: hidden; box-shadow: inset 0 0 0 1px var(--line); background: var(--bg-2); text-align: start; }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary { list-style: none; cursor: pointer; padding: 17px 22px; display: flex; align-items: center; gap: 14px; font: 700 15.5px/1.45 var(--display); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--hover-soft); }
.faq summary::after { content: ""; margin-inline-start: auto; flex: none; width: 10px; height: 10px; border-right: 2px solid var(--a1); border-bottom: 2px solid var(--a1); transform: rotate(45deg) translate(-2px,-2px); transition: transform .22s; }
.faq details[open] summary::after { transform: rotate(-135deg) translate(-2px,-2px); }
.faq details p { padding: 0 22px 18px; margin: 0; color: var(--ink-2); font-size: 14.5px; }

.author { display: grid; grid-template-columns: auto 1fr; gap: 21px; background: var(--surface); border-radius: var(--r); padding: 25px 27px; box-shadow: inset 0 0 0 1px var(--line); text-align: start; margin-top: 20px; }
.ava { width: 62px; height: 62px; border-radius: 11px; display: grid; place-items: center; background: var(--grad-2); color: #2b1403; font: 700 20px/1 var(--display); flex: none; }
.author h3 { font-size: 18px; }
.author .role { color: var(--a2); font-size: 13px; font-weight: 600; margin: 4px 0 11px; }
.author p { color: var(--ink-2); font-size: 14.5px; margin: 0 0 11px; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 999px; background: var(--chip); box-shadow: inset 0 0 0 1px var(--line); color: var(--ink-2); font-size: 12.5px; }
.paystrip { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 20px; }
.paystrip .pt { color: var(--ink-3); font-size: 12px; margin-inline-end: 4px; }
.pay { display: inline-flex; align-items: center; gap: 7px; padding: 8px 14px; border-radius: 999px; background: var(--surface); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--ink); font: 700 12px/1 var(--display); letter-spacing: .05em; }

.disclaimer { display: flex; gap: 15px; align-items: flex-start; margin-top: 20px; padding: 19px 23px; border-radius: var(--r); background: var(--bg-2); box-shadow: inset 0 0 0 1px var(--line); color: var(--ink-3); font-size: 13px; line-height: 1.62; text-align: start; }
.badge18 { flex: none; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: rgba(248,113,113,.1); box-shadow: inset 0 0 0 1px rgba(248,113,113,.26); color: var(--warn); font: 700 14px/1 var(--mono); }

footer.site { border-top: 1px solid var(--line); background: var(--bg-2); padding: 34px 0 38px; }
.foot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(206px, 1fr)); gap: 26px; }
.foot-grid .fh { font: 700 12.5px/1.15 var(--display); text-transform: uppercase; letter-spacing: .11em; margin-bottom: 12px; }
.foot-grid a { display: block; color: var(--ink-2); text-decoration: none; font-size: 14px; padding: 4px 0; }
.foot-grid a:hover { color: var(--a1); }
.foot-grid p { color: var(--ink-3); font-size: 13.5px; }
.foot-bottom { margin-top: 24px; padding-top: 19px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; display: flex; gap: 15px; justify-content: space-between; flex-wrap: wrap; }
.foot-bottom a { color: var(--ink-2); text-decoration: none; }

.crumbs { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; padding: 18px 0 0; font-size: 13px; color: var(--ink-3); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--a1); }
.crumbs i { font-style: normal; opacity: .5; }
.crumbs .cur { color: var(--ink); }

.pagehead { padding: 26px 0 6px; }
.pagehead h1 { font-size: clamp(26px, 3.6vw, 42px); margin-bottom: 12px; }
.pagehead .lede { color: var(--ink-2); font-size: 15.5px; max-width: 78ch; }

.doc { max-width: 78ch; padding: 38px 0 10px; }
.doc h1 { font-size: clamp(25px, 3.8vw, 34px); margin-bottom: 8px; }
.doc .upd { color: var(--ink-3); font-size: 13.5px; margin-bottom: 26px; }
.doc h2 { font-size: 19px; margin: 28px 0 10px; }
.doc p, .doc li { color: var(--ink-2); font-size: 15.5px; }
.doc ul, .doc ol { padding-left: 20px; display: grid; gap: 8px; margin: 0 0 14px; }
.doc a { color: var(--a1); }
.doc .callout { background: var(--surface); border-radius: var(--r-s); padding: 18px 22px; margin: 22px 0; box-shadow: inset 0 0 0 1px var(--line); border-inline-start: 3px solid var(--a2); }
.doc .callout p:last-child { margin-bottom: 0; }

.notfound { text-align: center; padding: 24px 0 6px; }
.nf-code { font: 700 clamp(70px, 13vw, 140px)/.9 var(--mono); color: var(--a1); margin-bottom: 12px; }
.notfound h1 { font-size: clamp(23px, 3.8vw, 33px); margin-bottom: 12px; }
.notfound .lede { color: var(--ink-2); font-size: 16px; max-width: 56ch; margin: 0 auto 22px; }
.notfound .hero-cta { justify-content: center; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .topnav { display: none; }
}
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .author { grid-template-columns: 1fr; }
  .step { padding: 56px 20px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

.calc { background: var(--surface); border-radius: var(--r); box-shadow: inset 0 0 0 1px var(--line); padding: 26px 28px; }
.calc h3 { font-size: 19px; margin-bottom: 9px; }
.calc > p { color: var(--ink-2); font-size: 14.5px; }
.calc-in { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 18px 0; }
.field { display: grid; gap: 6px; }
.field label { color: var(--ink-3); font: 700 10px/1.35 var(--display); letter-spacing: .12em; text-transform: uppercase; }
.field input { width: 100%; padding: 12px 14px; border: 0; border-radius: var(--r-s); background: var(--bg-2); box-shadow: inset 0 0 0 1px var(--line-2); color: var(--ink); font: 700 16px/1 var(--mono); }
.field input:focus { outline: none; box-shadow: inset 0 0 0 2px var(--a1); }
.calc-out { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.out { background: var(--bg-2); border-radius: var(--r-s); padding: 16px 18px; box-shadow: inset 0 0 0 1px var(--line); }
.out .l { color: var(--ink-3); font: 700 10px/1.35 var(--display); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px; }
.out .v { font: 700 24px/1.1 var(--mono); color: var(--a1); }
.calc-note { color: var(--ink-3); font-size: 13px; margin: 16px 0 0; }