:root {
  --green-950: #062a21;
  --green-900: #0b3b2e;
  --green-800: #0f5138;
  --green-700: #176b46;
  --green-600: #198754;
  --green-500: #24a766;
  --lime: #9acb2c;
  --navy: #061f34;
  --ink: #14211b;
  --muted: #5d6e65;
  --surface: #ffffff;
  --soft: #f2f8f4;
  --line: #dbe8df;
  --danger: #b42318;
  --shadow-sm: 0 10px 30px rgba(6, 42, 33, 0.08);
  --shadow-lg: 0 28px 70px rgba(6, 31, 52, 0.18);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --container: 1240px;
  --header-height: 84px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 16px); }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "Noto Sans Bengali", system-ui, sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}
body.modal-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
section { position: relative; }
.section-anchor { scroll-margin-top: calc(var(--header-height) + 12px); }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 9999;
  padding: 10px 16px;
  color: white;
  background: var(--green-900);
  border-radius: 10px;
  text-decoration: none;
  transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(219, 232, 223, .85);
  backdrop-filter: blur(18px);
  transition: box-shadow .25s ease, transform .25s ease;
}
.site-header.scrolled { box-shadow: 0 10px 30px rgba(6, 42, 33, .09); }
.nav-shell {
  width: min(calc(100% - 40px), 1360px);
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand { display: inline-flex; width: 278px; flex: 0 0 auto; }
.brand img { width: 100%; height: auto; }
.primary-nav { display: flex; align-items: center; gap: 8px; }
.primary-nav a {
  position: relative;
  padding: 11px 13px;
  color: #30443a;
  border-radius: 12px;
  font-size: .94rem;
  font-weight: 700;
  text-decoration: none;
  transition: color .2s ease, background .2s ease;
}
.primary-nav a:hover, .primary-nav a.active { color: var(--green-800); background: #edf7f0; }
.primary-nav a.active::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 5px;
  height: 2px;
  background: var(--lime);
  border-radius: 99px;
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  background: white;
  border-radius: 12px;
}
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--green-900); border-radius: 99px; transition: .2s ease; }

.hero-section {
  min-height: 100svh;
  padding: calc(var(--header-height) + 54px) 0 68px;
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(135deg, #eef8f1 0%, #f9fcfa 52%, #eef8f1 100%);
}
.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 8% 15%, rgba(154, 203, 44, .18), transparent 31%),
    radial-gradient(circle at 90% 85%, rgba(25, 135, 84, .13), transparent 32%);
}
.hero-background::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .28;
  background-image: linear-gradient(rgba(11,59,46,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(11,59,46,.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}
.hero-layout { display: grid; grid-template-columns: minmax(0, 1.42fr) minmax(360px, .78fr); gap: 30px; align-items: stretch; }
.slideshow-card, .hero-panel { border: 1px solid rgba(214, 229, 219, .9); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.slideshow-card { display: flex; flex-direction: column; background: #071f17; }
.slide-stage { position: relative; aspect-ratio: 4 / 3; min-height: 490px; background: #0a211a; overflow: hidden; }
.slide { position: absolute; inset: 0; margin: 0; opacity: 0; transform: scale(1.025); transition: opacity .7s ease, transform 1.1s ease; pointer-events: none; }
.slide.active { opacity: 1; transform: scale(1); pointer-events: auto; }
.slide picture, .slide img { width: 100%; height: 100%; }
.slide img { object-fit: cover; }
.slide-stage::after { content: ""; position: absolute; inset: auto 0 0; height: 28%; background: linear-gradient(transparent, rgba(5, 22, 17, .72)); pointer-events: none; }
.slider-control {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255,255,255,.42);
  border-radius: 50%;
  color: white;
  background: rgba(5, 22, 17, .48);
  backdrop-filter: blur(10px);
  font-size: 2rem;
  line-height: 1;
  transform: translateY(-50%);
  transition: background .2s ease, transform .2s ease;
}
.slider-control:hover { background: var(--green-600); transform: translateY(-50%) scale(1.04); }
.slider-control.prev { left: 18px; }
.slider-control.next { right: 18px; }
.slide-counter { position: absolute; z-index: 3; right: 22px; bottom: 18px; color: white; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-weight: 700; letter-spacing: .08em; }
.slider-dots { min-height: 38px; padding: 13px 18px; display: flex; justify-content: center; align-items: center; gap: 8px; background: #08271d; }
.slider-dots button { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 99px; background: rgba(255,255,255,.34); transition: width .25s ease, background .25s ease; }
.slider-dots button.active { width: 28px; background: var(--lime); }
.carousel-summary {
  flex: 1;
  min-height: 190px;
  padding: 26px 28px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: center;
  color: white;
  background:
    radial-gradient(circle at 90% 15%, rgba(154,203,44,.15), transparent 36%),
    linear-gradient(135deg, #062b20, #061f1a);
  border-top: 1px solid rgba(255,255,255,.08);
}
.carousel-caption { min-width: 0; }
.carousel-caption span { display: block; margin-bottom: 8px; color: #c9f06c; font-size: .76rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.carousel-caption strong { display: block; max-width: 36ch; color: #f4fbf6; font-size: 1.18rem; line-height: 1.45; }
.carousel-stats { display: grid; grid-template-columns: repeat(3, minmax(92px, 1fr)); gap: 10px; }
.carousel-stats div { min-height: 88px; padding: 13px 12px; display: flex; flex-direction: column; justify-content: center; border: 1px solid rgba(255,255,255,.12); border-radius: 15px; background: rgba(255,255,255,.055); }
.carousel-stats b { color: #c9f06c; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-size: .96rem; }
.carousel-stats span { margin-top: 4px; color: rgba(255,255,255,.7); font-size: .77rem; line-height: 1.4; }

.hero-panel {
  padding: clamp(28px, 4vw, 48px);
  color: white;
  background:
    linear-gradient(150deg, rgba(7, 54, 40, .96), rgba(4, 29, 45, .97)),
    radial-gradient(circle at top right, rgba(154,203,44,.35), transparent 40%);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.eyebrow, .section-kicker { color: var(--green-600); font-family: "Noto Sans Bengali", system-ui, sans-serif; font-size: .78rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.hero-panel .eyebrow { color: #c8ef72; }
.hero-panel h1 { margin: 13px 0 16px; max-width: 18ch; font-size: clamp(2rem, 3vw, 3.45rem); line-height: 1.13; letter-spacing: -.025em; }
.hero-panel p { margin: 0 0 14px; color: rgba(255,255,255,.78); }
.hero-panel .hero-lead { color: rgba(255,255,255,.93); font-size: 1.05rem; }
.hero-highlights { display: flex; flex-wrap: wrap; gap: 9px; margin: 20px 0 26px; }
.hero-highlights span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.16); border-radius: 99px; background: rgba(255,255,255,.075); color: #eaf6ec; font-size: .88rem; font-weight: 600; }
.hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.microcopy { margin: 12px 0 0 !important; font-size: .78rem; }

.button {
  min-height: 48px;
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-weight: 800;
  line-height: 1.25;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: #062118; background: linear-gradient(135deg, #b4e34d, #91c825); box-shadow: 0 12px 24px rgba(154, 203, 44, .23); }
.button-secondary { color: white; background: rgba(255,255,255,.09); border-color: rgba(255,255,255,.26); }
.button-outline { color: var(--green-800); background: transparent; border-color: var(--green-600); }
.button-light { color: var(--green-950); background: white; }
.button-whatsapp { color: white; background: #1fa855; }
.full-width { width: 100%; }

.trust-strip { padding: 0; background: var(--green-950); color: white; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid div { padding: 26px 28px; display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: center; border-right: 1px solid rgba(255,255,255,.12); }
.trust-grid div:last-child { border-right: 0; }
.trust-grid strong { color: #c9f06c; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-size: 1.65rem; }
.trust-grid span { color: rgba(255,255,255,.78); font-size: .92rem; }

.section { padding: 100px 0; }
.section-muted { background: var(--soft); }
.section-dark { color: white; background: linear-gradient(135deg, #071e31, #063828); }
.section-heading { margin-bottom: 48px; }
.section-heading h2 { margin: 8px 0 10px; color: var(--green-900); font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.15; letter-spacing: -.025em; }
.section-heading p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.centered { max-width: 820px; margin-inline: auto; text-align: center; }
.light-heading h2 { color: white; }
.light-heading p { color: rgba(255,255,255,.72); }
.split-heading { display: flex; justify-content: space-between; align-items: end; gap: 32px; }
.split-heading > p { max-width: 420px; text-align: right; }
.subsection-heading { margin: 64px 0 24px; }
.subsection-heading span { color: var(--green-600); font-weight: 800; }
.subsection-heading h3 { margin: 5px 0 0; color: var(--green-900); font-size: clamp(1.5rem, 2.5vw, 2.25rem); }
.light-subheading h3 { color: white; }
.light-subheading span { color: #c9f06c; }

.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; }
.feature-panel { padding: clamp(28px, 4vw, 46px); border-radius: var(--radius-lg); color: white; background: linear-gradient(145deg, var(--green-900), var(--navy)); box-shadow: var(--shadow-lg); }
.feature-panel h3 { margin: 0 0 18px; font-size: 2rem; }
.feature-panel p { color: rgba(255,255,255,.82); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.why-grid article, .application-grid article, .comparison-notes article { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); }
.mini-icon { width: 42px; height: 42px; display: grid; place-items: center; color: white; background: var(--green-600); border-radius: 13px; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-weight: 800; }
.why-grid h3, .application-grid h3, .comparison-notes h3 { margin: 15px 0 7px; color: var(--green-900); }
.why-grid p, .application-grid p, .comparison-notes p { margin: 0; color: var(--muted); }
.application-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.vision-card { margin-top: 28px; padding: 34px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; border-radius: var(--radius-lg); background: linear-gradient(135deg, #edf8f0, #f8fcf9); border: 1px solid var(--line); }
.vision-card h3 { margin: 8px 0 0; color: var(--green-900); font-size: 1.55rem; line-height: 1.4; }
.vision-card p { margin: 0; color: var(--muted); }

.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: benefit; }
.benefit-card { position: relative; min-height: 210px; padding: 25px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.benefit-card:hover { transform: translateY(-5px); border-color: rgba(25,135,84,.4); box-shadow: 0 22px 46px rgba(6,42,33,.11); }
.benefit-card > span { width: 46px; height: 46px; display: grid; place-items: center; color: white; background: linear-gradient(145deg, var(--green-700), var(--green-500)); border-radius: 14px; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-weight: 800; }
.benefit-card h3 { margin: 17px 0 8px; color: var(--green-900); font-size: 1.22rem; }
.benefit-card p { margin: 0; color: var(--muted); }

.table-shell { width: 100%; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 16px 18px; text-align: left; border-bottom: 1px solid #e7eee9; }
th { color: white; background: var(--green-900); font-weight: 800; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:nth-child(even) { background: #f7fbf8; }
tbody tr:hover { background: #edf8f0; }
.positive { color: #087443; font-weight: 800; }
.negative { color: var(--danger); font-weight: 800; }
.comparison-notes { margin-top: 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.spec-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.spec-card, .sizes-card { padding: 26px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-lg); background: rgba(255,255,255,.075); backdrop-filter: blur(12px); }
.spec-card h3 { margin: 0 0 18px; color: white; font-size: 1.35rem; }
.spec-card .table-shell { border-color: rgba(255,255,255,.14); box-shadow: none; }
.spec-card table { min-width: 540px; }
.spec-card th { color: white; background: var(--green-700); }
.spec-card td { color: #20372c; background: #ffffff; font-weight: 600; }
.spec-card tbody tr:nth-child(even) td { background: #f3f8f5; }
.spec-card tbody tr:hover td { color: #102a1d; background: #e7f4eb; }
.sizes-card { margin-top: 22px; }
.sizes-card .subsection-heading { margin: 0 0 20px; }
.size-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.size-grid div { min-height: 90px; padding: 18px; display: flex; align-items: center; justify-content: center; text-align: center; color: #eaf6ec; border: 1px solid rgba(255,255,255,.14); border-radius: 16px; background: rgba(255,255,255,.065); }
.spec-download-row { margin-top: 22px; padding: 24px 26px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-radius: var(--radius-md); background: rgba(154,203,44,.13); border: 1px solid rgba(201,240,108,.28); }
.spec-download-row p { margin: 0; color: rgba(255,255,255,.78); }

.guide-grid { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; list-style: none; }
.guide-grid li { padding: 22px; display: grid; grid-template-columns: 52px 1fr; gap: 15px; border: 1px solid var(--line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); }
.guide-grid li > span { width: 48px; height: 48px; display: grid; place-items: center; color: white; background: var(--green-600); border-radius: 14px; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-weight: 800; }
.guide-grid h3 { margin: 2px 0 5px; color: var(--green-900); font-size: 1.04rem; }
.guide-grid p { margin: 0; color: var(--muted); font-size: .93rem; }
.bangla-guide { margin-top: 22px; padding: 30px; border-radius: var(--radius-lg); color: white; background: linear-gradient(135deg, var(--green-800), var(--green-950)); }
.bangla-guide h3 { margin: 0 0 10px; font-size: 1.5rem; }
.bangla-guide p { margin: 0; color: rgba(255,255,255,.84); }

.contact-section { overflow: hidden; background: linear-gradient(135deg, #eff8f1, #fff); }
.contact-section::before { content: ""; position: absolute; width: 520px; height: 520px; right: -200px; bottom: -230px; border-radius: 50%; background: rgba(154,203,44,.16); }
.contact-layout { display: grid; grid-template-columns: 1fr .86fr; gap: 44px; align-items: start; }
.contact-copy h2 { margin: 9px 0 16px; color: var(--green-900); font-size: clamp(2rem, 3.6vw, 3.2rem); line-height: 1.16; }
.contact-copy > p { color: var(--muted); font-size: 1.06rem; }
.contact-list { margin-top: 30px; display: grid; gap: 12px; }
.contact-list div { padding: 14px 0; display: grid; grid-template-columns: 120px 1fr; gap: 16px; border-bottom: 1px solid var(--line); }
.contact-list span { color: var(--muted); font-weight: 700; }
.contact-list a { color: var(--green-800); font-weight: 800; text-decoration: none; }
.contact-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.quote-card { position: relative; z-index: 1; padding: clamp(26px, 4vw, 40px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: white; box-shadow: var(--shadow-lg); }
.quote-card h3 { margin: 5px 0 22px; color: var(--green-900); font-size: 1.7rem; }
.quote-form, .account-form { display: grid; gap: 15px; }
.quote-form label, .account-form label { color: #31483c; font-weight: 700; }
.quote-form input, .quote-form select, .quote-form textarea, .account-form input {
  width: 100%;
  margin-top: 7px;
  padding: 13px 14px;
  color: var(--ink);
  background: #f8fbf9;
  border: 1px solid #d8e6dc;
  border-radius: 12px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus, .account-form input:focus { border-color: var(--green-600); box-shadow: 0 0 0 4px rgba(25,135,84,.11); }
.quote-form textarea { resize: vertical; }
.form-two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-status { min-height: 24px; margin: 0; color: var(--green-700); font-size: .9rem; }
.customer-access { margin-top: 22px; padding-top: 18px; display: flex; flex-wrap: wrap; align-items: center; gap: 9px; color: var(--muted); border-top: 1px solid var(--line); font-size: .9rem; }
.text-button { padding: 0; color: var(--green-700); background: none; border: 0; font-weight: 800; }


.location-block { margin-top: 68px; position: relative; z-index: 1; }
.location-heading { margin-bottom: 22px; display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.location-heading h3 { margin: 7px 0 0; color: var(--green-900); font-size: clamp(1.65rem, 3vw, 2.4rem); line-height: 1.2; }
.location-heading p { max-width: 510px; margin: 0; color: var(--muted); text-align: right; }
.map-shell { position: relative; min-height: 440px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #dce9df; box-shadow: var(--shadow-lg); }
.map-shell iframe { width: 100%; height: 440px; display: block; border: 0; }
.map-info-card { position: absolute; left: 24px; bottom: 24px; width: min(390px, calc(100% - 48px)); padding: 22px; color: white; border: 1px solid rgba(255,255,255,.16); border-radius: 18px; background: rgba(4, 34, 26, .92); box-shadow: 0 18px 46px rgba(4,27,21,.28); backdrop-filter: blur(12px); }
.map-info-card > span { display: block; color: #c9f06c; font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.map-info-card strong { display: block; margin: 8px 0 18px; font-size: 1rem; line-height: 1.6; }
.map-info-card div { display: flex; flex-wrap: wrap; gap: 9px; }
.map-info-card a { padding: 9px 13px; color: white; border: 1px solid rgba(255,255,255,.2); border-radius: 11px; text-decoration: none; font-weight: 800; background: rgba(255,255,255,.07); }
.map-info-card a:hover { color: #08271d; background: #c9f06c; }

.site-footer { color: white; background: #031b15; }
.footer-cta-wrap { border-bottom: 1px solid rgba(255,255,255,.09); background: linear-gradient(135deg, #0b5139, #063228); }
.footer-cta { padding: 34px 0; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.footer-cta span { color: #c9f06c; font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.footer-cta h2 { margin: 7px 0 0; max-width: 700px; color: white; font-size: clamp(1.35rem, 2.5vw, 2rem); line-height: 1.3; }
.footer-cta-actions { display: flex; flex-wrap: wrap; gap: 10px; flex: 0 0 auto; }
.button-footer-outline { color: white; background: transparent; border-color: rgba(255,255,255,.4); }
.button-footer-outline:hover { background: rgba(255,255,255,.1); }
.footer-grid { padding: 58px 0 46px; display: grid; grid-template-columns: 1.35fr .75fr .8fr 1.05fr; gap: 42px; }
.footer-logo-wrap { width: min(100%, 330px); padding: 12px 15px; display: inline-flex; align-items: center; border-radius: 17px; background: white; box-shadow: 0 12px 36px rgba(0,0,0,.18); }
.footer-brand img { width: 100%; height: auto; filter: none; }
.footer-brand p { max-width: 390px; margin: 20px 0 10px; color: rgba(255,255,255,.72); }
.footer-brand > strong { color: #c9f06c; font-size: .9rem; }
.site-footer h3 { margin: 0 0 16px; color: white; font-size: 1.08rem; }
.footer-column p { margin: 0 0 12px; color: rgba(255,255,255,.68); }
.footer-links { display: grid; gap: 10px; }
.footer-links a, .footer-contact > a { width: fit-content; color: rgba(255,255,255,.76); text-decoration: none; transition: color .2s ease, transform .2s ease; }
.footer-links a:hover, .footer-contact > a:hover { color: #c9f06c; transform: translateX(3px); }
.footer-features { margin: 0; padding: 0; display: grid; gap: 10px; list-style: none; }
.footer-features li { position: relative; padding-left: 20px; color: rgba(255,255,255,.75); }
.footer-features li::before { content: "✓"; position: absolute; left: 0; color: #c9f06c; font-weight: 900; }
.footer-contact { display: flex; flex-direction: column; align-items: flex-start; }
.footer-contact p strong { color: white; }
.footer-contact > a { margin-bottom: 8px; font-family: "Noto Sans Bengali", system-ui, sans-serif; }
.footer-bottom { padding: 18px 0; color: rgba(255,255,255,.55); border-top: 1px solid rgba(255,255,255,.09); font-size: .88rem; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 800; width: 46px; height: 46px; border: 0; border-radius: 14px; color: white; background: var(--green-700); box-shadow: var(--shadow-sm); opacity: 0; visibility: hidden; transform: translateY(12px); transition: .2s ease; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }

.modal[hidden] { display: none; }
.modal { position: fixed; inset: 0; z-index: 2000; display: grid; place-items: center; padding: 20px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(1, 18, 13, .74); backdrop-filter: blur(7px); }
.modal-panel { position: relative; z-index: 1; width: min(100%, 520px); max-height: calc(100svh - 40px); overflow-y: auto; padding: 34px; border-radius: var(--radius-lg); background: white; box-shadow: 0 40px 90px rgba(0,0,0,.3); animation: modalIn .22s ease both; }
.modal-wide { width: min(100%, 700px); }
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.985); } }
.modal-close { position: absolute; top: 14px; right: 14px; width: 40px; height: 40px; border: 0; border-radius: 12px; color: var(--green-900); background: #edf6f0; font-size: 1.6rem; }
.modal-icon { width: 58px; height: 58px; display: grid; place-items: center; color: white; background: var(--green-700); border-radius: 16px; font-family: "Noto Sans Bengali", system-ui, sans-serif; font-weight: 800; }
.modal-panel h2 { margin: 18px 42px 10px 0; color: var(--green-900); font-size: 1.8rem; line-height: 1.25; }
.modal-panel > p { color: var(--muted); }
.modal-actions { margin-top: 24px; display: flex; justify-content: flex-end; gap: 10px; }

@media (max-width: 1120px) {
  :root { --header-height: 76px; }
  .brand { width: 230px; }
  .primary-nav a { padding-inline: 9px; font-size: .87rem; }
  .hero-layout { grid-template-columns: 1.18fr .82fr; }
  .slide-stage { min-height: 430px; }
  
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .comparison-notes { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: fixed;
    top: var(--header-height);
    left: 20px;
    right: 20px;
    padding: 14px;
    display: grid;
    gap: 4px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: white;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: .2s ease;
  }
  .primary-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .primary-nav a { padding: 12px 14px; }
  .primary-nav a.active::after { display: none; }
  .hero-section { min-height: auto; }
  .hero-layout { grid-template-columns: 1fr; }
  .slide-stage { min-height: 0; }
  .hero-panel h1 { max-width: none; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid div:nth-child(2) { border-right: 0; }
  .trust-grid div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.12); }
  .about-grid, .spec-layout, .contact-layout, .vision-card { grid-template-columns: 1fr; }
  .application-grid, .guide-grid { grid-template-columns: repeat(2, 1fr); }
  
  .size-grid { grid-template-columns: repeat(2, 1fr); }
  .split-heading { align-items: start; flex-direction: column; }
  .split-heading > p { text-align: left; }
  .carousel-summary { grid-template-columns: 1fr; min-height: 0; }
  .carousel-stats { grid-template-columns: repeat(3, 1fr); }
  .location-heading { align-items: start; flex-direction: column; }
  .location-heading p { text-align: left; }
  .footer-cta { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .container, .nav-shell { width: min(calc(100% - 28px), var(--container)); }
  .brand { width: 205px; }
  .hero-section { padding-top: calc(var(--header-height) + 28px); padding-bottom: 42px; }
  .slideshow-card, .hero-panel { border-radius: 22px; }
  .hero-panel { padding: 27px 22px; }
  .hero-panel h1 { font-size: 2rem; }
  .hero-actions { grid-template-columns: 1fr; }
  .slider-control { width: 40px; height: 40px; }
  .slider-control.prev { left: 10px; }
  .slider-control.next { right: 10px; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-grid div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .trust-grid div:last-child { border-bottom: 0; }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 34px; }
  .why-grid, .benefits-grid, .application-grid, .comparison-notes, .guide-grid, .size-grid, .footer-grid, .form-two-column { grid-template-columns: 1fr; }
  .carousel-summary { padding: 22px; }
  .carousel-stats { grid-template-columns: 1fr; }
  .carousel-stats div { min-height: 72px; }
  .map-shell { min-height: 0; height: auto; }
  .map-shell iframe { min-height: 390px; height: 390px; }
  .map-info-card { position: relative; inset: auto; width: 100%; border-radius: 0; }
  .footer-cta-actions { width: 100%; }
  .footer-cta-actions .button { flex: 1; }
  .footer-bottom-inner { align-items: flex-start; flex-direction: column; }
  
  .benefit-card { min-height: 0; }
  .spec-download-row { align-items: stretch; flex-direction: column; }
  .contact-list div { grid-template-columns: 1fr; gap: 3px; }
  .guide-grid li { grid-template-columns: 46px 1fr; }
  .modal-panel { padding: 28px 20px; border-radius: 22px; }
  .modal-actions { flex-direction: column-reverse; }
  .modal-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}


/* Lean responsive layer */
html { width: 100%; max-width: 100%; overflow-x: hidden; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { width: 100%; max-width: 100%; min-width: 0; overflow-x: hidden; }
main, header, footer, section, .container, .nav-shell, .hero-layout, .slideshow-card,
.hero-panel, .about-grid, .spec-layout, .contact-layout, .footer-grid, .table-shell,
.spec-card, .sizes-card { min-width: 0; max-width: 100%; }
p, h1, h2, h3, strong, a, td, th, label { overflow-wrap: anywhere; }
img { content-visibility: auto; }
input, select, textarea, button, a { touch-action: manipulation; }
input, select, textarea { min-width: 0; }
.table-shell { -webkit-overflow-scrolling: touch; overscroll-behavior-inline: contain; }
.spec-card .spec-table { width: 100%; min-width: 0; table-layout: fixed; }
.spec-card .spec-table col:first-child { width: 48%; }
.spec-card .spec-table col:last-child { width: 52%; }
.spec-card .spec-table th, .spec-card .spec-table td { white-space: normal; overflow-wrap: anywhere; hyphens: auto; }


@media (hover: none) {
  .benefit-card:hover, .button:hover { transform: none; }
}

@media (max-width: 900px) {
  :root { --header-height: 70px; --radius-lg: 24px; --radius-md: 18px; }
  body.menu-open { overflow: hidden; }
  .container, .nav-shell { width: min(calc(100% - 28px), var(--container)); }
  .nav-shell { gap: 12px; }
  .brand { width: min(205px, calc(100vw - 88px)); }
  .menu-toggle { display: block; flex: 0 0 44px; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .primary-nav {
    top: calc(var(--header-height) + 8px); left: 14px; right: 14px;
    max-height: calc(100dvh - var(--header-height) - 22px); overflow-y: auto;
    overscroll-behavior: contain; padding: 10px; border-radius: 16px;
  }
  .primary-nav a { min-height: 45px; display: flex; align-items: center; padding: 10px 13px; }

  .hero-section { min-height: auto; padding: calc(var(--header-height) + 22px) 0 46px; align-items: initial; }
  .hero-layout { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .hero-panel { order: 1; padding: 29px 25px; }
  .slideshow-card { order: 2; }
  .hero-panel h1 { max-width: 24ch; font-size: clamp(2rem, 7vw, 2.75rem); }
  .hero-panel p { font-size: .98rem; }
  .slide-stage { width: 100%; min-height: 0; aspect-ratio: 4 / 3; }
  .slide img { object-position: center; }
  .carousel-summary { min-height: 0; padding: 22px; grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .carousel-stats { width: 100%; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .carousel-stats div { min-width: 0; min-height: 74px; padding: 10px 7px; }
  .carousel-stats b { font-size: .86rem; }
  .carousel-stats span { font-size: .69rem; }

  .section { padding: 70px 0; }
  .split-heading, .location-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
  .split-heading > p, .location-heading p { max-width: none; text-align: left; }
  .about-grid, .vision-card, .spec-layout, .contact-layout { grid-template-columns: minmax(0, 1fr); }
  .why-grid, .application-grid, .benefits-grid, .comparison-notes, .guide-grid, .size-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-panel, .vision-card, .spec-card, .sizes-card, .quote-card { padding: 25px; }
  .spec-card { backdrop-filter: none; }
  .map-shell { min-height: 0; height: auto; }
  .map-shell iframe { height: 370px; min-height: 370px; }
  .map-info-card { position: relative; inset: auto; width: 100%; border-radius: 0; backdrop-filter: none; }
  .footer-cta { align-items: flex-start; flex-direction: column; }
  .footer-cta-actions { width: 100%; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 24px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  .container, .nav-shell { width: min(calc(100% - 22px), var(--container)); }
  .why-grid, .application-grid, .benefits-grid, .comparison-notes, .guide-grid,
  .size-grid, .footer-grid, .form-two-column { grid-template-columns: minmax(0, 1fr); }
  .footer-brand { grid-column: auto; }

  /* Technical tables always fit the phone width; long values wrap instead of clipping. */
  .spec-card { padding: 18px 13px; overflow: hidden; }
  .spec-card h3 { margin-bottom: 14px; font-size: 1.18rem; }
  .spec-card .table-shell { width: 100%; overflow: hidden; border-radius: 15px; }
  .spec-card .spec-table { width: 100%; min-width: 0 !important; table-layout: fixed; }
  .spec-card .spec-table col:first-child { width: 48%; }
  .spec-card .spec-table col:last-child { width: 52%; }
  .spec-card .spec-table th,
  .spec-card .spec-table td,
  .spec-card .spec-table tbody tr:nth-child(even) td,
  .spec-card .spec-table tbody tr:hover td {
    padding: 12px 10px; vertical-align: top; white-space: normal; word-break: normal;
    overflow-wrap: anywhere; hyphens: auto; font-size: .82rem; line-height: 1.48;
  }
  .spec-card .spec-table th { font-size: .85rem; }

  /* The three-column comparison remains swipeable without widening the page. */
  .comparison-table-shell { max-width: 100%; overflow-x: auto; }
  .comparison-table-shell table { min-width: 680px; }

  .trust-grid { grid-template-columns: minmax(0, 1fr); }
  .trust-grid div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .trust-grid div:last-child { border-bottom: 0; }
  .carousel-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-logo-wrap { max-width: 280px; }
}

@media (max-width: 480px) {
  :root { --header-height: 64px; --radius-lg: 20px; --radius-md: 16px; }
  .container, .nav-shell { width: min(calc(100% - 18px), var(--container)); }
  .brand { width: min(174px, calc(100vw - 76px)); }
  .menu-toggle { width: 42px; height: 42px; flex-basis: 42px; }
  .primary-nav { left: 9px; right: 9px; }

  .hero-section { padding-top: calc(var(--header-height) + 15px); padding-bottom: 34px; }
  .hero-layout { gap: 13px; }
  .hero-panel, .slideshow-card { border-radius: 18px; }
  .hero-panel { padding: 23px 17px; }
  .hero-panel h1 { margin: 9px 0 12px; font-size: clamp(1.68rem, 8.6vw, 2.05rem); line-height: 1.18; }
  .hero-panel p { margin-bottom: 10px; font-size: .9rem; }
  .hero-highlights { margin: 15px 0 19px; gap: 7px; }
  .hero-highlights span { padding: 7px 9px; font-size: .77rem; }
  .hero-actions { grid-template-columns: minmax(0, 1fr); }
  .button { width: 100%; min-height: 47px; padding-inline: 13px; }
  .microcopy { font-size: .72rem !important; }

  .slider-control { width: 37px; height: 37px; font-size: 1.55rem; }
  .slider-control.prev { left: 7px; }
  .slider-control.next { right: 7px; }
  .slide-counter { right: 11px; bottom: 9px; font-size: .79rem; }
  .slider-dots { min-height: 32px; padding: 9px 7px; gap: 5px; }
  .carousel-summary { padding: 17px 12px; gap: 12px; }
  .carousel-caption strong { font-size: .94rem; }
  .carousel-stats { gap: 5px; }
  .carousel-stats div { min-height: 65px; padding: 7px 4px; text-align: center; }
  .carousel-stats b { font-size: .73rem; }
  .carousel-stats span { font-size: .57rem; line-height: 1.3; }

  .section { padding: 52px 0; }
  .section-heading { margin-bottom: 27px; }
  .section-heading h2 { font-size: clamp(1.6rem, 8.5vw, 2.05rem); }
  .feature-panel, .vision-card, .sizes-card, .quote-card, .bangla-guide { padding: 19px 16px; border-radius: 17px; }
  .benefit-card { min-height: 0; padding: 16px; }
  .spec-card .spec-table th,
  .spec-card .spec-table td,
  .spec-card .spec-table tbody tr:nth-child(even) td,
  .spec-card .spec-table tbody tr:hover td { padding: 10px 8px; font-size: .76rem; line-height: 1.42; }
  .spec-card .spec-table th { font-size: .79rem; }
  .size-grid div { min-height: 66px; padding: 12px 8px; font-size: .86rem; }
  .contact-list div { grid-template-columns: minmax(0, 1fr); gap: 3px; }
  .contact-actions { display: grid; grid-template-columns: minmax(0, 1fr); }
  .quote-form input, .quote-form select, .quote-form textarea, .account-form input { font-size: 16px; }
  .map-shell iframe { height: 290px; min-height: 290px; }
  .map-info-card { padding: 17px 14px; }
  .map-info-card div, .footer-cta-actions { display: grid; grid-template-columns: minmax(0, 1fr); }
  .footer-grid { padding: 38px 0 32px; gap: 26px; }
  .footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-bottom-inner { align-items: flex-start; flex-direction: column; gap: 5px; }
  .modal { padding: 0; align-items: end; }
  .modal-panel, .modal-wide { width: 100%; max-height: calc(100dvh - 10px); padding: 25px 15px max(21px, env(safe-area-inset-bottom)); border-radius: 21px 21px 0 0; }
  .modal-actions { align-items: stretch; flex-direction: column-reverse; }
  .back-to-top { right: 11px; bottom: 11px; width: 43px; height: 43px; }
}

@media (max-width: 350px) {
  .container, .nav-shell { width: min(calc(100% - 14px), var(--container)); }
  .brand { width: 150px; }
  .hero-panel { padding-inline: 14px; }
  .hero-panel h1 { font-size: 1.55rem; }
  .spec-card { padding-inline: 9px; }
  .spec-card .spec-table col:first-child { width: 46%; }
  .spec-card .spec-table col:last-child { width: 54%; }
  .spec-card .spec-table th,
  .spec-card .spec-table td,
  .spec-card .spec-table tbody tr:nth-child(even) td,
  .spec-card .spec-table tbody tr:hover td { padding: 9px 6px; font-size: .7rem; }
  .footer-links { grid-template-columns: minmax(0, 1fr); }
}