/* salunbd.com — one stylesheet for the landing page, the legal pages and the 404. No JavaScript. */
:root {
  --ink: #0b1020;
  --ink-2: #111833;
  --heading: #0f172a;
  --text: #3b4658;
  --muted: #64748b;
  --line: #e4e8f0;
  --paper: #f6f7fb;
  --white: #ffffff;
  --brand: #635bff;
  --brand-600: #5046e5;
  --brand-300: #a5a0ff;
  --brand-soft: #eef0ff;
  --mint: #10b981;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --danger: #dc2626;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -12px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 40px 80px -30px rgba(11, 16, 32, 0.55);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font: 16px/1.65 "Manrope", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { color: var(--heading); letter-spacing: -0.025em; line-height: 1.15; }
a { color: var(--brand); font-weight: 700; text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.icon { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.sprite { display: none; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 780px; }

/* ---- header ---------------------------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, 0.86); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid rgba(228, 232, 240, 0.8); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--heading); font-weight: 800; font-size: 20px; letter-spacing: -0.03em; }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 10px; }
.brand em { color: var(--brand); font-style: normal; }
.nav { display: flex; align-items: center; gap: 26px; font-size: 14.5px; }
.nav a { color: var(--muted); font-weight: 700; }
.nav a:hover { color: var(--heading); text-decoration: none; }
.nav .btn { color: var(--white); }

/* ---- buttons & badges -------------------------------------------------------------------------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 12px; padding: 11px 18px; font: inherit; font-weight: 800; font-size: 14.5px; border: 0; cursor: pointer; transition: transform 0.15s ease, background 0.15s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: var(--white); box-shadow: 0 10px 24px -10px rgba(99, 91, 255, 0.8); }
.btn-primary:hover { background: var(--brand-600); }
.btn-ghost { background: rgba(255, 255, 255, 0.08); color: var(--white); border: 1px solid rgba(255, 255, 255, 0.18); }
.btn-danger { background: var(--danger); color: var(--white); }
.store { display: inline-flex; align-items: center; gap: 12px; }
.store img { height: 50px; width: auto; }
.store:hover { text-decoration: none; transform: translateY(-1px); }
.app-pill { display: inline-flex; align-items: center; gap: 12px; }
.app-pill img { width: 46px; height: 46px; border-radius: 12px; }
.app-pill strong { display: block; color: inherit; font-size: 15px; line-height: 1.2; }
.app-pill span { display: block; font-size: 13px; opacity: 0.75; }

/* ---- hero -------------------------------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; color: #cdd3f5; background: radial-gradient(900px 520px at 85% 0%, rgba(99, 91, 255, 0.55), transparent 60%), radial-gradient(700px 480px at 0% 100%, rgba(16, 185, 129, 0.16), transparent 60%), var(--ink); }
.hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 85%); -webkit-mask-image: linear-gradient(to bottom, black, transparent 85%); pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: 40px; padding-top: 72px; padding-bottom: 0; }
.hero-copy { padding-bottom: 80px; }
.kicker { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 8px; border-radius: 999px; background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.12); color: #e5e7ff; font-size: 13px; font-weight: 700; }
.kicker b { background: var(--brand); color: var(--white); border-radius: 999px; padding: 2px 9px; font-size: 11.5px; letter-spacing: 0.02em; }
.hero h1 { color: var(--white); font-size: clamp(38px, 5.6vw, 64px); line-height: 1.02; letter-spacing: -0.04em; margin: 20px 0 18px; }
.hero h1 .accent { background: linear-gradient(90deg, #b9b5ff, #8f88ff 45%, #6ee7b7); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lede { font-size: 18.5px; line-height: 1.6; max-width: 54ch; margin: 0 0 30px; color: #c3c9ea; }
.downloads { display: grid; gap: 14px; max-width: 520px; }
.download { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 14px 14px 16px; border-radius: 18px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); color: var(--white); }
.download .store img { height: 44px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 26px 0 0; padding: 0; list-style: none; font-size: 14px; font-weight: 700; color: #dfe3ff; }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.hero-points .icon { width: 18px; height: 18px; color: #6ee7b7; }

.hero-visual { position: relative; height: 640px; }
.hero-visual .phone { position: absolute; bottom: -60px; }
.hero-visual .phone.front { left: 4%; width: 300px; transform: rotate(-4deg); z-index: 2; }
.hero-visual .phone.back { right: 2%; bottom: 10px; width: 270px; transform: rotate(5deg); opacity: 0.96; }
.float-card { position: absolute; z-index: 3; display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 16px; background: rgba(255, 255, 255, 0.96); color: var(--heading); box-shadow: var(--shadow-lg); font-size: 13.5px; font-weight: 800; }
.float-card small { display: block; color: var(--muted); font-size: 12px; font-weight: 700; }
.float-card .dot { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; color: var(--white); }
.float-card .dot.mint { background: var(--mint); }
.float-card .dot.brand { background: var(--brand); }
.float-card.one { left: -7%; bottom: 150px; }
.float-card.two { right: -5%; top: 360px; }

/* ---- phone frame ------------------------------------------------------------------------------- */
.phone { padding: 9px; border-radius: 46px; background: linear-gradient(160deg, #2a3150, #0c1022 55%); box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(255, 255, 255, 0.08); }
.phone img { width: 100%; height: auto; aspect-ratio: 600 / 1335; border-radius: 38px; object-fit: cover; background: #f3f4f8; }

/* ---- trust strip ------------------------------------------------------------------------------- */
.strip { background: var(--white); border-bottom: 1px solid var(--line); }
.strip ul { list-style: none; margin: 0 auto; padding: 22px 22px; max-width: 1160px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.strip li { display: flex; align-items: center; gap: 12px; font-size: 14.5px; }
.strip strong { display: block; color: var(--heading); font-size: 15px; }
.strip span { color: var(--muted); font-size: 13.5px; }
.chip { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); flex: none; }

/* ---- sections ---------------------------------------------------------------------------------- */
.section { padding: 96px 0; }
.section-head { max-width: 720px; margin: 0 0 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand); margin: 0 0 10px; }
.section h2 { font-size: clamp(30px, 3.8vw, 44px); margin: 0 0 14px; }
.section-head p { font-size: 17.5px; margin: 0; color: var(--text); }

.intro { font-size: 17.5px; margin: 0 0 30px; max-width: 60ch; }
.dark .intro { color: #c3c9ea; margin-bottom: 0; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.reverse .split-visual { order: -1; }
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.feature-list li { display: grid; grid-template-columns: 46px 1fr; gap: 16px; }
.feature-list h3 { font-size: 17.5px; margin: 2px 0 4px; }
.feature-list p { margin: 0; font-size: 15.5px; }
.stack { position: relative; height: 620px; }
.stack .phone { position: absolute; width: 272px; }
.stack .phone:first-child { left: 6%; top: 0; transform: rotate(-3deg); z-index: 2; }
.stack .phone:last-child { right: 6%; top: 70px; transform: rotate(4deg); }

/* ---- how it works ------------------------------------------------------------------------------- */
.band { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px 0; overflow: hidden; display: flex; flex-direction: column; }
.step::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--brand); color: var(--white); font-weight: 800; margin-bottom: 14px; }
.step h3 { font-size: 18px; margin: 0 0 6px; }
.step p { font-size: 14.5px; margin: 0 0 20px; }
.step .phone { margin: auto 12px -120px; border-radius: 34px; padding: 7px; box-shadow: 0 20px 40px -24px rgba(11, 16, 32, 0.5); }
.step .phone img { border-radius: 28px; }

/* ---- partners (dark) --------------------------------------------------------------------------- */
.dark { position: relative; overflow: hidden; background: radial-gradient(800px 500px at 100% 0%, rgba(99, 91, 255, 0.35), transparent 60%), var(--ink); color: #c3c9ea; }
.dark h2, .dark h3 { color: var(--white); }
.dark .eyebrow { color: var(--brand-300); }
.dark .section-head p { color: #c3c9ea; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card h3 { font-size: 18px; margin: 14px 0 6px; }
.card p { margin: 0; font-size: 15px; }
.dark .card { background: rgba(255, 255, 255, 0.04); border-color: rgba(255, 255, 255, 0.1); box-shadow: none; }
.dark .card p { color: #b7bee3; }
.dark .chip { background: rgba(99, 91, 255, 0.18); color: #c7c4ff; }
.partner-top { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 56px; }
.partner-top .stack { height: 600px; }
.checks { list-style: none; margin: 24px 0 30px; padding: 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; }
.checks .icon { width: 20px; height: 20px; margin-top: 3px; color: #6ee7b7; }
.checks strong { color: var(--white); }

/* ---- roles ------------------------------------------------------------------------------------- */
.roles .card { display: flex; flex-direction: column; }
.roles .card ul { margin: 14px 0 0; padding-left: 18px; font-size: 14.5px; }
.roles .card li { margin: 5px 0; }
.tag { display: inline-block; align-self: flex-start; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 800; background: var(--brand-soft); color: var(--brand); }

/* ---- gallery ----------------------------------------------------------------------------------- */
.gallery { display: grid; grid-auto-flow: column; grid-auto-columns: 220px; gap: 22px; overflow-x: auto; padding: 8px 22px 26px; margin: 0 -22px; scroll-snap-type: x mandatory; scrollbar-width: thin; }
.gallery figure { margin: 0; scroll-snap-align: start; }
.gallery .phone { padding: 7px; border-radius: 36px; box-shadow: 0 24px 40px -26px rgba(11, 16, 32, 0.55); }
.gallery .phone img { border-radius: 29px; }
.gallery figcaption { margin-top: 12px; font-size: 14px; font-weight: 800; color: var(--heading); text-align: center; }
.gallery figcaption span { display: block; font-weight: 600; color: var(--muted); font-size: 12.5px; }
@media (min-width: 1021px) {
  .gallery { grid-auto-flow: row; grid-template-columns: repeat(5, 1fr); grid-auto-columns: auto; gap: 34px 26px; overflow: visible; margin: 0; padding: 8px 0 10px; }
}
.fineprint { color: var(--muted); font-size: 13px; margin: 6px 0 0; }

/* ---- FAQ --------------------------------------------------------------------------------------- */
.faq { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: start; }
.faq details { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 20px; margin-bottom: 12px; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; font-weight: 800; color: var(--heading); font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { transition: transform 0.2s ease; color: var(--muted); }
.faq details[open] summary .icon { transform: rotate(180deg); }
.faq details p { margin: 0 0 18px; font-size: 15.5px; }

/* ---- CTA --------------------------------------------------------------------------------------- */
.cta { padding: 0 0 96px; }
.cta-box { position: relative; overflow: hidden; border-radius: 28px; padding: 56px; color: #d6daf7; background: radial-gradient(600px 300px at 90% 10%, rgba(110, 231, 183, 0.25), transparent 60%), linear-gradient(135deg, #3b33d6, var(--brand) 55%, #7c75ff); display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; }
.cta-box h2 { color: var(--white); font-size: clamp(28px, 3.4vw, 40px); margin: 0 0 10px; }
.cta-box p { margin: 0; font-size: 17px; color: #e3e5ff; }
.cta-box .downloads { max-width: none; }
.cta-box .download { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.25); }

/* ---- legal / document pages -------------------------------------------------------------------- */
.doc { padding: 56px 0 88px; }
.doc h1 { font-size: clamp(32px, 4.5vw, 44px); margin: 8px 0 6px; }
.doc h2 { font-size: 21px; margin: 38px 0 8px; }
.doc h3 { font-size: 17px; margin: 26px 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
.doc ul { padding-left: 20px; }
.doc li { margin: 6px 0; }
.doc code { background: var(--brand-soft); border-radius: 5px; padding: 1px 6px; font-size: 14px; }
.note { background: var(--brand-soft); border: 1px solid #cfd2ff; border-radius: var(--radius-sm); padding: 16px 18px; margin: 20px 0; color: var(--heading); }
.form { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; margin-top: 30px; box-shadow: var(--shadow); }
.form label { display: block; font-weight: 800; font-size: 14px; color: var(--heading); margin: 14px 0 6px; }
.form input[type="email"], .form input[type="password"] { width: 100%; border: 1px solid #cbd5e1; border-radius: 12px; padding: 12px 14px; font: inherit; color: var(--heading); background: var(--white); }
.form input:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; }
.form .check input { margin-top: 5px; }
.form .hint { color: var(--muted); font-size: 13px; margin: 14px 0 0; }
.form .btn { margin-top: 18px; }

/* ---- footer ------------------------------------------------------------------------------------ */
.site-footer { background: var(--ink); color: #98a2c9; font-size: 14.5px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; padding: 64px 0 40px; }
.site-footer .brand { color: var(--white); }
.site-footer p { margin: 14px 0 0; max-width: 36ch; }
.site-footer h4 { color: var(--white); font-size: 14px; margin: 4px 0 14px; letter-spacing: 0.02em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { color: #cfd5f3; font-weight: 600; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 22px 0 30px; font-size: 13px; }

/* ---- responsive -------------------------------------------------------------------------------- */
@media (max-width: 1020px) {
  .hero .wrap { grid-template-columns: 1fr; padding-top: 56px; }
  .hero-copy { padding-bottom: 20px; }
  .hero-visual { height: 520px; max-width: 560px; width: 100%; margin: 0 auto; }
  .hero-visual .phone.front { width: 260px; left: 6%; }
  .hero-visual .phone.back { width: 236px; }
  .strip ul { grid-template-columns: repeat(2, 1fr); }
  .split, .partner-top, .faq, .cta-box { grid-template-columns: 1fr; gap: 40px; }
  .split.reverse .split-visual { order: 0; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stack { max-width: 560px; margin: 0 auto; width: 100%; }
}
@media (max-width: 720px) {
  .nav a:not(.btn) { display: none; }
  .section { padding: 68px 0; }
  .hero h1 { font-size: 40px; }
  .hero .lede { font-size: 17px; }
  .download { flex-direction: column; align-items: flex-start; }
  .hero-visual { height: 470px; }
  .hero-visual .phone.front { width: 220px; left: 2%; }
  .hero-visual .phone.back { width: 200px; right: 0; }
  .float-card { font-size: 12.5px; padding: 10px 12px; }
  .float-card.one { bottom: 110px; left: 0; }
  .float-card.two { display: none; }
  .strip ul, .steps, .grid-3 { grid-template-columns: 1fr; }
  .stack, .partner-top .stack { height: 470px; }
  .stack .phone { width: 210px; }
  .stack .phone:first-child { left: 0; }
  .stack .phone:last-child { right: 0; }
  .step .phone { max-width: 250px; margin-left: auto; margin-right: auto; }
  .cta-box { padding: 32px 22px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .store, .faq summary .icon { transition: none; }
}