@font-face { font-family: 'Noto Sans Bengali'; font-style: normal; font-weight: 400; font-display: swap; src: url('fonts/noto-sans-bengali-400.ttf') format('truetype'); }
@font-face { font-family: 'Noto Sans Bengali'; font-style: normal; font-weight: 600; font-display: swap; src: url('fonts/noto-sans-bengali-600.ttf') format('truetype'); }
@font-face { font-family: 'Noto Sans Bengali'; font-style: normal; font-weight: 700; font-display: swap; src: url('fonts/noto-sans-bengali-700.ttf') format('truetype'); }
@font-face { font-family: 'Noto Sans Bengali'; font-style: normal; font-weight: 800; font-display: swap; src: url('fonts/noto-sans-bengali-800.ttf') format('truetype'); }
@font-face { font-family: 'Noto Sans Bengali'; font-style: normal; font-weight: 900; font-display: swap; src: url('fonts/noto-sans-bengali-900.ttf') format('truetype'); }

:root {
  --green: #018501;
  --bright-green: #00bf63;
  --yellow: #f8fb0f;
  --ink: #111;
  --line: #dce6d5;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 18px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: 'Noto Sans Bengali', 'Nirmala UI', sans-serif; line-height: 1.6; }
button, input, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
button, summary { cursor: pointer; }
img { display: block; max-width: 100%; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #e2a400; outline-offset: 4px; }
h1, h2, h3, p { margin-top: 0; }
h2 { font-size: clamp(25px, 4vw, 38px); font-weight: 700; line-height: 1.55; margin-bottom: 24px; }
h3 { font-size: clamp(22px, 3.4vw, 31px); font-weight: 700; line-height: 1.5; }
.page { max-width: 960px; margin: auto; overflow: clip; }
.header { position: relative; display: flex; justify-content: space-between; align-items: center; gap: 16px; background: var(--green); color: #fff; padding: 15px 28px; border: 6px solid white; border-radius: 55px 55px 0 0; }
.brand { display: flex; align-items: center; gap: 15px; }
.brand img { width: 65px; height: 65px; border-radius: 50%; object-fit: cover; }
.brand>span { font-family: Georgia, serif; font-weight: 700; font-size: 31px; line-height: 1.1; }
.brand small { display: block; font-family: 'Noto Sans Bengali', 'Nirmala UI', sans-serif; font-size: 11px; font-weight: 400; margin-top: 6px; }
.navigation summary { list-style: none; border-radius: 9px; padding: 3px 13px; background: #f5f5f5; color: #68717c; font-size: 29px; }
.navigation summary::-webkit-details-marker { display: none; }
.navigation nav { position: absolute; right: 20px; top: 95px; z-index: 10; display: grid; min-width: 200px; padding: 10px; background: white; color: #164c2b; box-shadow: 0 8px 30px #0002; border: 1px solid var(--line); border-radius: 8px; }
.navigation nav a { padding: 11px 16px; }
.navigation nav a:hover { background: #f7feef; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; border: 0; border-radius: 8px; background: var(--green); color: #fff; padding: 16px 32px; font-size: clamp(19px, 3.4vw, 26px); font-weight: 700; line-height: 1.4; box-shadow: 0 4px 0 #034b29; transition: background .2s; }
.button:hover { background: #05944c; }
.button span { font-family: inherit; }
.free-offer { padding: 50px 28px 38px; text-align: center; background: #fff; }
.free-offer h1 { display: flex; align-items: baseline; justify-content: center; gap: 5px; margin: 0; font-weight: 900; line-height: 1.3; }
.offer-number { font-size: clamp(125px, 25vw, 225px); color: #086325; letter-spacing: -12px; }
.offer-unit { font-size: clamp(84px, 17vw, 152px); color: #d4a000; }
.offer-ribbon { position: relative; display: table; min-width: 65%; margin: 5px auto 20px; padding: 8px 30px 3px; background: #062e5d; color: #fff; font-size: clamp(25px, 4.8vw, 42px); font-weight: 800; clip-path: polygon(0 0,100% 0,97% 50%,100% 100%,0 100%,3% 50%); }
.offer-intro { color: #09662a; font-size: clamp(24px, 4.4vw, 38px); font-weight: 800; line-height: 1.4; margin-bottom: 12px; }
.free-burst { display: grid; place-items: center; width: 280px; height: 190px; margin: 12px auto 25px; background: #111; clip-path: polygon(50% 0,59% 19%,83% 2%,78% 29%,100% 28%,84% 48%,100% 66%,76% 68%,84% 95%,60% 81%,49% 100%,40% 81%,15% 97%,21% 70%,0 71%,16% 51%,0 34%,25% 31%,20% 7%,40% 21%); }
.free-burst strong { display: grid; place-items: center; width: 94%; height: 90%; background: #f32620; clip-path: inherit; color: #f8fb0f; font-size: 100px; line-height: 1.2; font-weight: 900; padding-top: 22px; text-shadow: 3px 3px 0 #111, -2px -2px 0 #111; }
.delivery-note { margin-bottom: 18px; font-size: clamp(18px, 3vw, 25px); font-weight: 700; color: var(--green); }
.no-advance { font-size: clamp(18px, 3.2vw, 29px); margin: 25px 0 0; }
.product-section { text-align: center; background: #fcfdeb; padding: 32px 34px 40px; }
.product-section h2 { color: var(--green); font-size: clamp(32px, 5.2vw, 48px); margin-bottom: 26px; }
.slider { position: relative; overflow: hidden; border-radius: 5px; background: white; touch-action: pan-y; }
.slider-track { display: flex; transition: transform .35s ease; }
.slide { flex: 0 0 100%; min-width: 0; }
.slide>button { width: 100%; display: block; padding: 0; border: 0; background: #fff; }
.slide img { width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); display: grid; place-items: center; border: 1px solid #ffffff90; border-radius: 50%; width: 44px; height: 44px; background: #064d2cdd; color: #fff; font: 36px/1 Arial,sans-serif; }
.slider-arrow:hover { background: #067841; }
.previous { left: 13px; }
.next { right: 13px; }
.slider-controls { position: relative; display: flex; justify-content: center; align-items: center; margin: 12px 0 26px; min-height: 30px; }
.slider-dots { display: flex; gap: 3px; align-items: center; }
.slider-dots button { position: relative; width: 27px; height: 30px; border: 0; padding: 0; background: transparent; }
.slider-dots button::after { content: ''; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: #bec9b7; left: 9px; top: 11px; }
.slider-dots button[aria-pressed="true"]::after { background: var(--green); width: 22px; border-radius: 6px; left: 2px; }
.slider-count { position: absolute; right: 0; margin: 0; color: #53654c; font: 13px Arial,sans-serif; }
.sample-section { background: #f7feef; text-align: center; padding: 35px 35px 45px; }
.origin-line { font-size: clamp(21px, 3.5vw, 31px); font-weight: 700; color: #009900; }
.sample-poster { width: min(100%, 610px); margin: 25px auto 35px; border-radius: 4px; }
.sample-section h2 { color: #009900; font-size: clamp(25px, 4vw, 34px); }
.sample-section>p:not(.origin-line) { font-size: clamp(22px, 3.7vw, 33px); font-weight: 700; color: var(--green); margin-bottom: 28px; }
.usage-section { padding: 44px 34px 36px; background: #fffdf1; text-align: center; }
.usage-section h2 { font-size: clamp(30px, 4.8vw, 47px); margin-bottom: 28px; }
.usage-image { width: min(100%, 510px); margin: auto; }
.usage-list { text-align: left; margin: 28px 0 38px; padding-left: 30px; font-size: clamp(17px, 2.8vw, 23px); font-weight: 700; }
.usage-list li { padding: 6px 0 6px 5px; }
.videos { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.videos h3 { margin-bottom: 14px; }
video { display: block; width: 100%; aspect-ratio: 3/4; object-fit: contain; background: #111; border-radius: 4px; }
.audio-section { background: #fff; padding: 45px 34px 35px; text-align: center; }
.audio-section h2 { font-size: clamp(25px, 4vw, 36px); }
audio { display: block; width: min(100%, 650px); height: 54px; margin: 25px auto 0; }
.certificates { padding: 35px 34px 45px; background: #f7feef; text-align: center; }
.certificates h2 { font-size: clamp(25px, 4.2vw, 39px); margin-bottom: 5px; }
.certificates>p { font-size: clamp(18px, 3vw, 28px); margin-bottom: 30px; }
.certificates h3 { display: inline-block; background: var(--yellow); padding: 12px 24px 7px; border-bottom: 5px solid var(--bright-green); margin-bottom: 25px; }
.certificate-images { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 25px; }
.certificate-images button { padding: 9px; border: 1px solid #dae5d3; background: #fff; }
.certificate-images img { width: 100%; height: auto; }
.order-section { padding: 38px 34px 40px; background: #ffffe5; text-align: center; }
.order-section>h2 { font-size: clamp(25px, 4.2vw, 38px); color: #018501; margin: 0 auto 20px; max-width: 800px; }
.order-section>.no-advance { margin: 10px 0 30px; font-size: clamp(22px, 3.8vw, 35px); }
.order-form { width: 100%; max-width: 700px; margin: auto; padding: 32px; background: #fff; border: 2px solid var(--green); border-radius: 8px; text-align: left; }
.order-form h3 { margin: 0 0 5px; font-size: 27px; color: var(--green); }
.order-form>p { color: #576253; font-size: 15px; }
.order-form label { display: block; margin: 17px 0 7px; font-size: 17px; font-weight: 600; }
.order-form label span { color: #d42525; }
input, textarea { display: block; width: 100%; padding: 12px 14px; border: 1px solid #ccd6c6; border-radius: 4px; color: #14270e; background: #fff; font-size: 16px; }
textarea { resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--green); outline-offset: 1px; }
input::placeholder, textarea::placeholder { color: #7e8779; }
.summary { background: #f7feef; padding: 16px 18px; margin-top: 25px; border-radius: 4px; }
.summary>div { display: flex; justify-content: space-between; gap: 15px; margin: 7px 0; }
.summary>div:first-child strong { color: var(--green); }
.summary .total { border-top: 1px solid #d7e2cf; padding-top: 12px; margin-top: 12px; font-size: 23px; color: var(--green); }
.payment { display: flex; align-items: center; gap: 12px; margin: 23px 0; }
.payment small { display: block; font-size: 13px; color: #64725d; }
.payment>span:last-child { margin-left: auto; font-size: 27px; }
.radio-dot { height: 18px; width: 18px; border-radius: 50%; border: 4px solid white; background: var(--green); outline: 1px solid var(--green); flex-shrink: 0; }
.submit { width: 100%; padding: 16px; font-size: 21px; }
.submit:disabled { opacity: .7; cursor: default; }
.order-form .form-note { text-align: center; font-size: 13px; margin: 15px 0 0; }
#form-status { margin: 15px 0 0; color: #a42824; }
#form-status:empty { margin: 0; }
.order-form .success { background: #edf8e7; padding: 15px; color: var(--green); border-radius: 4px; }
.form-errors { color: #a42824; background: #fff1ed; padding: 12px; border-radius: 4px; }
.form-errors p { margin: 0; }
.promise { margin: 40px auto 25px; font-size: clamp(23px, 3.8vw, 33px); font-weight: 700; max-width: 810px; }
.promise>span { display: block; color: #f2091e; margin-top: 12px; }
.blessing { font-size: clamp(25px, 4.3vw, 39px); font-weight: 700; color: #029715; margin-bottom: 25px; }
.contact { background: #fff1de; padding: 45px 18px; margin-top: 28px; text-align: center; }
.contact h3 { margin: 0 0 26px; color: #111; font-size: clamp(25px, 4vw, 38px); line-height: 1.2; font-weight: 800; }
.contact .contact-button { display: flex; align-items: center; justify-content: center; gap: 9px; width: fit-content; max-width: 100%; margin: 0 auto; padding: 10px 23px; border-radius: 5px; color: #fff; font: clamp(23px, 5vw, 36px)/1.2 Arial,sans-serif; text-decoration: none; box-sizing: border-box; }
.contact .contact-call { background: #ff7600; }
.contact .contact-whatsapp { background: #00bd4d; margin-top: 22px; }
.contact-button svg { width: .95em; height: .95em; flex-shrink: 0; }
.contact-button span { white-space: nowrap; }
.contact .contact-button:hover { filter: brightness(.94); }
.contact-button:focus-visible { outline: 3px solid #163d27; outline-offset: 4px; }
footer { padding: 22px; background: #f7feef; color: #4d6347; text-align: center; font-size: 13px; }
footer p { margin: 0; }
.mobile-order { display: none; }
dialog { border: 0; border-radius: 6px; padding: 12px; max-width: 94vw; max-height: 94dvh; background: #fff; }
dialog::backdrop { background: #07170de8; }
dialog>img { max-width: 88vw; max-height: 86dvh; width: auto; object-fit: contain; }
.close-dialog { position: absolute; top: 9px; right: 9px; border: 1px solid #d5dece; background: #fff; color: #13472a; border-radius: 50%; width: 42px; height: 42px; font: 30px Arial,sans-serif; }
@media(min-width:960px) { .page { box-shadow: 0 0 50px #1d451211; } }
@media(max-width:600px) {
  .header { padding: 11px 15px; gap: 8px; border-width: 5px; border-radius: 42px 42px 0 0; }
  .brand { gap: 10px; }
  .brand img { width: 48px; height: 48px; }
  .brand>span { font-size: 24px; }
  .brand small { font-size: 9px; }
  .navigation summary { font-size: 25px; padding: 2px 11px; }
  .navigation nav { top: 78px; right: 8px; }
  .free-offer { padding: 35px 20px 30px; }
  .offer-number { letter-spacing: -6px; }
  .offer-ribbon { min-width: 85%; padding-right: 22px; padding-left: 22px; }
  .free-burst { width: 230px; height: 165px; }
  .free-burst strong { font-size: 85px; }
  .free-offer .button, .sample-section .button { width: 100%; gap: 12px; padding: 15px 10px; }
  .no-advance { margin-top: 20px; }
  .product-section { padding: 30px 14px; }
  .product-section h2 { margin-bottom: 20px; }
  .slider-arrow { width: 38px; height: 38px; font-size: 30px; }
  .previous { left: 7px; }.next { right: 7px; }
  .sample-section, .usage-section, .audio-section, .certificates, .order-section { padding: 32px 20px; }
  .sample-poster { margin: 20px auto 25px; }
  .sample-section h2 { margin-bottom: 20px; }
  .usage-list { margin: 22px 0 28px; padding-left: 23px; }
  .videos { gap: 12px; }
  .videos h3 { font-size: 22px; }
  .certificate-images { gap: 12px; }
  .certificate-images button { padding: 5px; }
  .certificates h3 { font-size: 24px; padding: 12px 12px 7px; }
  .order-form { padding: 22px 16px; }
  .order-form h3 { font-size: 25px; }
  .order-form label { font-size: 15px; }
  .submit { font-size: 17px; gap: 10px; }
  .summary { padding: 13px; font-size: 14px; }
  .summary .total { font-size: 21px; }
  .promise { margin-top: 30px; }
  .mobile-order { display: flex; position: fixed; z-index: 5; bottom: 0; left: 0; right: 0; justify-content: space-between; gap: 8px; border-radius: 0; padding: 14px 18px max(14px,env(safe-area-inset-bottom)); font-size: 15px; box-shadow: 0 -3px 15px #0002; }
  .mobile-order.hidden { display: none; }
  footer { padding-bottom: 90px; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
.reviews-section{position:relative;margin:36px 0 28px;padding:26px 12px 18px;border:1px dashed #c8d6be;border-radius:18px;background:#f2ffeb}
.reviews-section h2{margin:0 0 22px;color:#a45300;font-size:clamp(24px,3.4vw,42px);line-height:1.4;font-style:italic;text-align:center}
.review-carousel{overflow:hidden;touch-action:pan-y}.review-track{display:flex;transition:transform .35s ease}.review-slide{flex:0 0 33.333333%;min-width:0;padding:0 10px;box-sizing:border-box}
.review-slide button{display:block;width:100%;height:100%;padding:8px;border:1px solid #163d27;border-radius:15px;background:white;cursor:zoom-in}.review-slide img{display:block;width:100%;height:380px;object-fit:contain;border-radius:10px}
.review-navigation{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:16px}.review-navigation[hidden]{display:none}.review-prev,.review-next{border:0;background:transparent;color:#154d26;font-size:24px;padding:4px 12px;cursor:pointer}.review-dots{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}.review-dots button{width:11px;height:11px;padding:0;border:0;border-radius:50%;background:#b9803c;cursor:pointer}.review-dots button[aria-pressed="true"]{background:#f20b16}
.review-prev,.review-next{position:absolute;top:calc(50% + 20px);z-index:1;display:grid;place-items:center;width:36px;height:44px;padding:0;border-radius:8px;background:#f2ffebee;transform:translateY(-50%)}.review-prev{left:6px}.review-next{right:6px}.review-slide button:focus-visible,.review-navigation button:focus-visible{outline:3px solid #a45300;outline-offset:3px}
@media(prefers-reduced-motion:reduce){.review-track{transition:none}}
@media(max-width:700px){.review-slide{flex-basis:100%;padding:0 4px}.review-slide img{height:auto;max-height:540px}.reviews-section{padding:20px 12px 14px}}