:root {
  --bg: #ffffff;
  --bg2: #f7f5f2;
  --line: #ece8e3;
  --ink: #1f1b16;
  --ink2: #5f574f;
  --ink3: #77706a;
  --acc: #a3601f;
  --acc-soft: #fbf1e6;
  --acc-strong: #8a4f19;
  --brown: #3e2716;
  --ok: #15803d;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 17px/1.6 "Hind Siliguri", "Noto Sans Bengali", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
img { max-width: 100%; height: auto; }
a { color: var(--acc-strong); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 10; }

.top { position: sticky; top: 0; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); z-index: 5; }
.top .row { padding: 8px 20px; }
.brand img { display: block; width: 84px; height: auto; }
.top nav { display: flex; align-items: center; gap: 18px; }
.top nav a { color: var(--ink2); text-decoration: none; font-weight: 500; }
.top nav a:hover { color: var(--acc-strong); }

.btn {
  display: inline-block; background: var(--acc); color: #fff !important; text-decoration: none;
  padding: 13px 22px; border-radius: 10px; font-weight: 600; border: 2px solid var(--acc);
}
.btn:hover { background: var(--acc-strong); border-color: var(--acc-strong); }
.btn.ghost { background: transparent; color: var(--acc-strong) !important; }
.btn.ghost:hover { background: var(--acc-soft); }
.btn.sm { padding: 8px 14px; }
.btn.lg { padding: 16px 28px; font-size: 1.05rem; }

.hero { background: linear-gradient(180deg, var(--acc-soft), var(--bg2)); padding: 56px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }
.eyebrow { color: var(--acc-strong); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: .85rem; margin: 0 0 8px; }
h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.2; margin: 0 0 16px; color: var(--brown); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin: 0 0 24px; color: var(--brown); }
h3 { margin: 0 0 6px; font-size: 1.12rem; }
.lead { font-size: 1.12rem; color: var(--ink2); max-width: 60ch; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 12px; }
.note { color: var(--ink3); font-size: .93rem; }

.hero-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; box-shadow: 0 10px 30px rgba(62,39,22,.08); }
.tl { display: flex; gap: 14px; padding: 12px 0; border-left: 2px dashed var(--line); margin-left: 7px; padding-left: 18px; position: relative; }
.tl .dot { position: absolute; left: -8px; top: 18px; width: 14px; height: 14px; border-radius: 50%; background: var(--line); border: 2px solid #fff; }
.tl .dot.ok { background: var(--ok); }
.tl .dot.acc { background: var(--acc); }
.tl b { display: block; }
.tl span { color: var(--ink2); font-size: .95rem; }

.sec { padding: 64px 20px; }
.band { background: var(--bg2); }
.center { text-align: center; }
.center .lead { margin: 0 auto 24px; }

.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { counter-increment: s; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.steps li::before { content: counter(s); display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--acc-soft); color: var(--acc-strong); font-weight: 700; margin-bottom: 10px; }
.steps p, .card p, .person p { color: var(--ink2); margin: 0; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px; }

.team { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.person { border: 1px solid var(--line); border-radius: 14px; padding: 22px; }
.person .role { color: var(--acc-strong); font-weight: 600; margin: 0 0 8px; }
.person a { display: inline-block; margin-top: 10px; font-weight: 600; }

.foot { border-top: 1px solid var(--line); padding: 20px 0 90px; color: var(--ink3); font-size: .93rem; }
.foot nav { display: flex; gap: 16px; }

.sticky-cta { display: none; }

.page { max-width: 760px; margin: 0 auto; padding: 48px 20px; }
.page h1 { font-size: 2rem; }
.page h2 { font-size: 1.25rem; margin: 28px 0 8px; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .steps, .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .top nav a:not(.btn) { display: none; }
  .steps, .cards, .team { grid-template-columns: 1fr; }
  .hero { padding: 36px 0 44px; }
  .sticky-cta {
    display: block; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 6;
    background: var(--acc); color: #fff; text-align: center; text-decoration: none;
    padding: 14px; border-radius: 12px; font-weight: 700; box-shadow: 0 8px 24px rgba(62,39,22,.25);
  }
  .foot { padding-bottom: 96px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }