html, body {
  overflow-x: hidden;  /* horizontal scroll বন্ধ */
  overflow-y: auto;    /* vertical scroll সবসময় চালু */
  height: auto;        /* height fix না, auto */
}
/* ===== Fixed header + hero space ===== */
:root { --sustainability-top-offset: 140px; }
@media (max-width: 768px){
  :root { --sustainability-top-offset: 160px; }
}

/* ===== Page background + base font ===== */
.sustainability-page {
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background-color: #ffffff; /* teal */
  color: #FFA500; /* brand orange */
}

/* ===== HERO ===== */
.sustainability-page .hero {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  margin-bottom: 5px;
}
.sustainability-page .hero img {
  max-width: calc(100% - 120px);
  height: auto;
  object-fit: contain;
  display: block;
}
@media (max-width: 992px) {
  .sustainability-page .hero img { max-width: calc(100% - 60px); }
}
@media (max-width: 600px) {
  .sustainability-page .hero img { max-width: 100%; }
}

/* ===== Main container & teal section ===== */
.sustainability-page .main-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 16px 44px;
}
.sustainability-page .main-section {
  background: #ffffff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 14px 50px rgba(255, 165, 0, 0.9);
}

/* ===== Headings & text ===== */
.sustainability-page .section-title {
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  margin: 6px 0 20px 0;
  color: #FFA500;
}
.sustainability-page .section-text {
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 20px 0;
  color: #FFA500;
}

/* ===== Grid Boxes ===== */
.grid-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.strength-box {
  background: #ffffff;
  border: 2px solid #FFA500;
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 8px 28px rgba(255,165,0,0.6);
  transition: transform .25s ease, box-shadow .25s ease;
}
.strength-box:hover {
  transform: scale(1.03);
  box-shadow: 0 12px 40px rgba(255,165,0,0.85);
}
.strength-box h3 {
  text-align: center;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFA500;
}
.strength-box p {
  font-size: 15px;
  line-height: 1.6;
  color: #FFA500;
}

/* ===== Conclusion Box ===== */
.conclusion-box {
  margin-top: 28px;
  background: #ffffff;
  border: 2px solid #FFA500;
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  font-size: 16px;
  line-height: 1.7;
  color: #FFA500;
  box-shadow: 0 10px 36px rgba(255,165,0,0.8);
}
/* Mobile fix: teal boxes center align */
@media (max-width: 768px) {
  .grid-boxes {
    display: flex;
    flex-direction: column;
    align-items: center;   /* ✅ center horizontally */
  }
  .strength-box {
    width: 90%;            /* ✅ ছোট স্ক্রিনে box গুলোকে proper width দেয়া হলো */
    max-width: 400px;      /* চাইলে max-width fix করতে পারেন */
  }
}