* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  background: #fff;
}

.notice-section {
  max-width: 1200px;
  margin: 60px auto;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 0 20px; /* added for smaller screens */
}

/* Sidebar */
.sidebar {
  border-right: 1px solid #ddd;
}

.sidebar-item {
  padding: 20px;
  border: 1px solid #ddd;
  border-right: none;
  cursor: pointer;
  background: #fff;
  color: #444;
}

.sidebar-item.active {
  border-left: 3px solid #2f7dd1;
  color: #2f7dd1;
  font-weight: 600;
}

/* Accordion */
.accordion {
  border-bottom: 1px solid #ddd;
  padding: 18px 0;
}

.accordion-header {
  display: flex;
  align-items: center;
  gap: 15px;
}

.accordion .accordion-body {
  display: none;
}

.accordion.active .accordion-body {
  display: block;
}

.toggle {
  width: 26px;
  height: 26px;
  border: none;
  background: #4d90d8;
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
  font-size: 18px;
  flex-shrink: 0; /* prevent shrinking */
}

.accordion h3 {
  font-size: 20px;
  font-weight: 500;
  color: #333;
  line-height: 1.5;
}

.accordion-body {
  margin-left: 42px;
  margin-top: 25px;
}

.details {
  display: flex;
  justify-content: space-between;
  gap: 40px;
}

.left,
.right {
  flex: 1;
}

.details h4 {
  margin-bottom: 18px;
  color: #222;
}

.details ul {
  padding-left: 20px;
}

.details li {
  margin-bottom: 12px;
  color: #666;
  line-height: 1.6;
}

.details li::marker {
  color: #4d90d8;
}

.btn {
  display: inline-block;
  background: #4d90d8;
  color: #fff;
  padding: 12px 22px;
  text-decoration: none;
  border-radius: 4px;
  transition: 0.3s;
}

.btn:hover {
  background: #2d73be;
}

/* ============= RESPONSIVE ============= */
/* Tablet & Small Desktops */
@media (max-width: 1024px) {
  .notice-section {
    gap: 30px;
    padding: 0 25px;
  }
  .accordion h3 {
    font-size: 18px;
  }
}

/* Mobile Landscape & Tablet Portrait */
@media (max-width: 768px) {
  .notice-section {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .sidebar {
    border: none;
  }

  .sidebar-item {
    border-right: 1px solid #ddd;
  }

  .details {
    flex-direction: column;
    gap: 25px;
  }

  .accordion h3 {
    font-size: 16px;
  }

  .accordion-body {
    margin-left: 0;
    margin-top: 20px;
  }
}

/* Small Mobile Phones */
@media (max-width: 480px) {
  .notice-section {
    margin: 30px auto;
    padding: 0 15px;
  }

  .toggle {
    width: 22px;
    height: 22px;
    font-size: 16px;
  }

  .accordion h3 {
    font-size: 14px;
  }

  .details h4 {
    font-size: 16px;
  }

  .btn {
    padding: 10px 18px;
    font-size: 14px;
  }

  .accordion-body {
    margin-left: 0;
  }
}