.bangla-text {
    font-family: 'SolaimanLipi', 'Tiro Bangla', 'Noto Serif Bengali', sans-serif;
}

#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 9999;
}

#splash-screen img {
    width: 100px;
    height: auto;
}




header {
    position: sticky;
    top: 0;
    z-index: 1000;
}
body {
    font-family: 'arial', 'SolaimanLipi', 'Tiro Bangla', 'Noto Serif Bengali', sans-serif;
    background: linear-gradient(90deg, hsla(18, 50%, 90%, 0.7) 0%, hsla(203, 50%, 90%, 0.7) 100%);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}
.content {
  background: white;
 border-radius: 20px;
 margin: 10px;
}
.container {
    text-align: center;
    width: 90%;
    margin: auto;
    padding: 18px;
}



.menu-bar {
  background: linear-gradient(
  90deg,
  rgba(0, 131, 143, 1),
  rgba(255, 248, 225, 1)
);

  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
}

.sidebar {
  width: 250px;
  height: 100vh;
  background: linear-gradient(
  190deg,
  rgba(0, 131, 143, 1),
  rgba(255, 248, 225, 1)
);

  border-radius: 0 20px 20px 0;
  position: fixed;
  top: 0;
  left: -250px;
  transition: left 0.5s ease-in-out;
  padding-top: 60px;
  z-index: 1050;
  overflow-y: auto;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 15px;
  position: absolute;
  top: 0;
  width: 100%;
}

.sidebar-logo {
  height: 30px;
  width: 30px;
  border-radius: 7px;
  margin-right: 10px;
}

.sidebar-title {
  font-size: 18px;
  color: white;
  font-weight: bold;
  margin-right: auto;
}


/* Sidebar main links */
.sidebar a {
  display: block;
  color: white;
  margin-left: 15px;
  padding: 12px 10px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2); /* 🔽 Line under each item */
  transition: background 0.3s ease;
}

.sidebar a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-left: 4px solid #fff;
  padding-left: 6px;
}

.sidebar a.dropdown-toggle {
  font-weight: 500;
  cursor: pointer;
}

.dropdown {
  display: none;
  background: #005A4E;
  padding-left: 15px;
}

.sidebar a.active + .dropdown {
  display: block;
}

.dropdown a {
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15); /* 🔽 Line for dropdown links */
}

/* Close button style */
.close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  color: white;
  font-size: 25px;
  cursor: pointer;
  transition: transform 0.2s;
}
.close-btn:hover {
  transform: rotate(90deg);
}



.back-btn {
    font-size: 40px;
    font-weight: bold;
    color: #00796B;
    background: none;
    border: none;
    cursor: pointer;
    margin-top: 50px;
    text-align: center;
    position: absolute;
    left: 20px;
    top: 20px;
}
.back-btn:hover {
    text-decoration: underline;
}




.scroll-top-btn {
    width: 40px;
    height: 40px;
    background-color: transparent;
    color: #00bcd4;
    border: 1px solid #00bcd4;
    border-radius: 10px;
    font-size: 35px;
    cursor: pointer;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s, transform 0.3s;
    display: flex; /* maintained because we toggle d-none via class */
    z-index: 997;
}

.scroll-top-btn:hover {
    background-color: rgba(0, 188, 212, 0.1);
    color: #0097a7;
}

.scroll-top-btn.show {
    display: flex !important; /* override Bootstrap's d-none */
}