:root {
  --ink: #1c1a18;
  --ink-soft: #554f49;
  --muted: #837a72;
  --paper: #ffffff;
  --sand: #faf8f5;
  --sand-2: #f3eee7;
  --red: #d33a2c;
  --red-deep: #ad2b20;
  --red-tint: rgba(211,58,44,.09);
  --green: #215f3c;
  --green-tint: #edf5ef;
  --gold: #d99a13;
  --dark: #191512;
  --line: rgba(28,26,24,.11);
  --shadow: 0 18px 48px rgba(28,26,24,.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background-color: #f7f2e8;
  background-image:
    linear-gradient(rgba(255,255,255,.34), rgba(255,255,255,.34)),
    url("images/paper-texture.jpg");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  font-family: "Inter", system-ui, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { background: var(--red-tint); }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.container { width: min(1100px, calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-top: 4px solid var(--red);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.91);
  backdrop-filter: blur(18px) saturate(170%);
}
.nav-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 13px; font-family: "Hanken Grotesk", sans-serif; font-weight: 800; line-height: 1.1; }
.brand img { width: 62px; height: 62px; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 24px; color: var(--ink-soft); font-size: 14px; font-weight: 600; }
.site-nav a:hover { color: var(--red-deep); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--red-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 20px; height: 2px; background: var(--red); }
h1, h2, h3 { margin-top: 0; font-family: "Hanken Grotesk", sans-serif; line-height: 1.1; }
h1 { margin: 20px 0 22px; font-size: clamp(43px, 6vw, 72px); font-weight: 800; letter-spacing: -.04em; }
h2 { margin-bottom: 18px; font-size: clamp(31px, 4vw, 46px); font-weight: 800; letter-spacing: -.03em; }
h3 { margin-bottom: 9px; font-size: 21px; letter-spacing: -.015em; }
.lead { max-width: 650px; color: var(--ink-soft); font-size: 19px; }
.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1.1;
}
.btn-primary { color: white; background: var(--red); }
.btn-secondary { border-color: var(--line); background: white; }

.guide-hero { position: relative; overflow: hidden; padding: 88px 0 76px; }
.guide-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -220px;
  top: -190px;
  border: 1px solid rgba(211,58,44,.18);
  border-radius: 50%;
  box-shadow: 0 0 0 44px rgba(211,58,44,.03), 0 0 0 88px rgba(211,58,44,.02);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 70px; align-items: center; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.quick-card { padding: 30px; border: 1px solid var(--line); border-top: 4px solid var(--red); border-radius: 20px; background: var(--sand); box-shadow: var(--shadow); }
.quick-card h2 { font-size: 25px; }
.quick-card p { color: var(--ink-soft); font-size: 14px; }
.quick-links { display: grid; gap: 0; margin-top: 20px; border-top: 1px solid var(--line); }
.quick-links a { padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--red-deep); font-weight: 700; font-size: 14px; }
.quick-links a::after { content: " →"; }

.notice { padding: 18px 0; color: var(--ink-soft); background: var(--sand); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 14px; }
.notice strong { color: var(--ink); }
.section { padding: 88px 0; }
.band { background: var(--sand); }
.dark { color: white; background: var(--dark); }
.dark h2, .dark h3 { color: white; }
.dark .lead, .dark p { color: rgba(255,255,255,.68); }
.dark .eyebrow { color: #efbc4d; }
.dark .eyebrow::before { background: #efbc4d; }
.section-heading { max-width: 740px; margin-bottom: 38px; }
.section-heading .eyebrow { margin-bottom: 15px; }

.visual-section { padding: 24px 0 88px; }
.visual-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 22px; }
.visual-heading h2 { margin: 7px 0 0; font-size: clamp(28px, 3vw, 38px); }
.visual-heading p { max-width: 43ch; margin: 0; color: var(--ink-soft); font-size: 14px; }
.visual-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 13px; }
.visual-card {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--sand-2);
  box-shadow: var(--shadow);
}
.visual-card.wide { grid-column: span 8; aspect-ratio: 16 / 9; }
.visual-card.square { grid-column: span 4; aspect-ratio: 1 / 1; }
.visual-card.half { grid-column: span 6; aspect-ratio: 3 / 2; }
.visual-card.panorama { grid-column: span 12; aspect-ratio: 2.65 / 1; }
.visual-card img { width: 100%; height: 100%; object-fit: cover; }
.visual-card figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: 34px 18px 15px;
  color: white;
  background: linear-gradient(transparent, rgba(15,12,10,.82));
  font-size: 13px;
  font-weight: 600;
}
.image-credits { margin: 12px 0 0; color: var(--muted); font-size: 11px; }
.image-credits a { text-decoration: underline; text-underline-offset: 2px; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { padding: 27px; border: 1px solid var(--line); border-radius: 17px; background: white; }
.card-number { display: grid; width: 37px; height: 37px; margin-bottom: 28px; place-items: center; border-radius: 50%; color: var(--red-deep); background: var(--red-tint); font-weight: 800; }
.card p { margin-bottom: 0; color: var(--ink-soft); font-size: 14px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.plain-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.plain-list li { padding: 17px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); }
.plain-list strong { display: block; margin-bottom: 3px; color: var(--ink); }

.connection-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.13); }
.connection { min-height: 225px; padding: 25px; background: var(--dark); }
.connection span { display: block; margin-bottom: 45px; color: #efbc4d; font-size: 30px; font-weight: 800; }
.connection p { margin-bottom: 0; font-size: 13px; }

.phrase-list { overflow: hidden; border: 1px solid var(--line); border-radius: 17px; }
.phrase { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 18px; padding: 16px 20px; background: white; }
.phrase + .phrase { border-top: 1px solid var(--line); }
.phrase strong { color: var(--red-deep); }
.phrase span:last-child { color: var(--ink-soft); }

.step-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 23px; border: 1px solid var(--line); border-radius: 16px; background: white; }
.step > span { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 50%; color: white; background: var(--green); font-weight: 800; }
.step h3 { margin-bottom: 5px; }
.step p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.resource { padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.resource small { display: block; margin-bottom: 7px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.resource strong { display: block; margin-bottom: 7px; }
.resource p { margin-bottom: 15px; color: var(--ink-soft); font-size: 13px; }
.resource a { color: var(--red-deep); font-size: 13px; font-weight: 700; }
.resource a::after { content: " ↗"; }

/* Bengal's global footprint carousel */
.trivia-stage {
  position: relative;
  min-height: 330px;
  touch-action: pan-y;
  cursor: pointer;
}
.trivia-card {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(250px, 38%) 1fr;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 4px solid var(--red);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity .55s ease, transform .55s ease;
}
.trivia-card.active { opacity: 1; transform: translateY(0); pointer-events: auto; }
.trivia-image {
  width: 100%;
  height: 100%;
  min-height: 330px;
  object-fit: contain;
  padding: 18px;
  background: var(--sand-2);
}
.trivia-image.contain { object-fit: contain; padding: 22px; }
.trivia-image-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  min-height: 330px;
  background: var(--line);
}
.trivia-image-pair img {
  width: 100%;
  height: 100%;
  min-height: 330px;
  object-fit: contain;
  padding: 18px;
  background: var(--sand-2);
}
.trivia-copy { display: flex; flex-direction: column; justify-content: center; padding: 42px; }
.trivia-card h3 { margin: 0 0 14px; font-size: clamp(24px, 3vw, 34px); }
.trivia-card p { max-width: 72ch; margin: 0; color: var(--ink-soft); font-size: 17px; }
.trivia-card strong { color: var(--red-deep); font-weight: 700; }
.trivia-progress { display: flex; justify-content: center; gap: 8px; margin-top: 22px; }
.trivia-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition: width .25s ease, background .25s ease;
}
.trivia-dot.active { width: 26px; border-radius: 999px; background: var(--red); }

.bridge-cta { padding: 42px 0 88px; }
.bridge-box { display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; padding: 42px; border-radius: 22px; color: white; background: var(--red); }
.bridge-box h2 { margin-bottom: 10px; color: white; font-size: 34px; }
.bridge-box p { max-width: 58ch; margin-bottom: 0; color: rgba(255,255,255,.8); }
.bridge-box .btn { color: var(--ink); background: white; }

footer { padding: 36px 0 50px; color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; padding-top: 25px; border-top: 1px solid var(--line); font-size: 13px; }

@media (max-width: 850px) {
  .site-nav a:not(.home-link) { display: none; }
  .hero-grid, .two-col { grid-template-columns: 1fr; gap: 42px; }
  .card-grid, .resource-grid { grid-template-columns: repeat(2, 1fr); }
  .connection-grid { grid-template-columns: repeat(2, 1fr); }
  .bridge-box { grid-template-columns: 1fr; }
  .visual-heading { align-items: start; flex-direction: column; gap: 7px; }
  .trivia-card { grid-template-columns: 34% 1fr; }
  .trivia-copy { padding: 32px; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 32px, 1100px); }
  .nav-inner { min-height: 72px; }
  .brand img { width: 54px; height: 54px; }
  .brand span { font-size: 14px; }
  .guide-hero { padding: 62px 0 56px; }
  h1 { font-size: 44px; }
  .section { padding: 64px 0; }
  .card-grid, .step-grid, .resource-grid, .connection-grid { grid-template-columns: 1fr; }
  .phrase { grid-template-columns: 1fr; gap: 4px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .quick-card, .bridge-box { padding: 27px; }
  .visual-section { padding-bottom: 64px; }
  .visual-card.wide, .visual-card.square, .visual-card.half, .visual-card.panorama { grid-column: span 12; aspect-ratio: 4 / 3; }
  .trivia-stage { min-height: 680px; }
  .trivia-card { display: flex; flex-direction: column; }
  .trivia-image { width: 100%; height: 230px; min-height: 0; flex: 0 0 230px; padding: 14px; }
  .trivia-image-pair { min-height: 230px; flex: 0 0 230px; }
  .trivia-image-pair img { min-height: 230px; padding: 10px; }
  .trivia-copy { flex: 1 1 auto; min-height: 0; padding: 28px 24px 32px; justify-content: flex-start; overflow-y: auto; }
  .footer-inner { flex-direction: column; }
}

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