* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Ubuntu', sans-serif;
  background: #f9f9f9;
  color: #222;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid #d7d7d7;
  z-index: 1000;
  padding: 18px 30px 0;
}

.site-title {
  font-size: 2.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

/* Navigation */
.main-nav {
  position: relative;
  background: #eee;
  border: 1px solid #d7d7d7;
  z-index: 10;
  padding: 5px 10px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  justify-content: flex-start;
}

.main-nav li {
  position: relative;
}

.nav-link {
  display: block;
  padding: 14px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: #444;
  text-decoration: none;
  transition: background .25s, color .25s;
  white-space: nowrap;
}

.nav-link:hover {
  background: #e0e0e0;
  color: #000;
}

.nav-link.active {
  color: #0b4f9c;
  font-weight: 700;
}

.active-bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 4px;
  width: 0;
  background: #0b74d1;
  transition: left .35s ease, width .35s ease;
}

/* Main Content Area */
.content-area {
  flex: 1;
  padding: 35px 35px 60px;
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
}

/* Section Layout */
.section-wrapper {
  background: #fff;
  border: 1px solid #ddd;
  padding: 38px 45px 55px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 45px;
}

@media (max-width: 900px) {
  .section-wrapper {
    grid-template-columns: 1fr;
  }
}

.section-left h1,
.section-left h2 {
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.25;
}

.section-left p {
  margin-bottom: 18px;
  text-align: justify;
}

/* Sidebar */
.sidebar-card {
  border-left: 1px solid #ececec;
  padding-left: 30px;
}

@media (max-width: 900px) {
  .sidebar-card {
    border-left: none;
    border-top: 1px solid #ececec;
    padding-left: 0;
    padding-top: 30px;
  }
}

.sidebar-card img {
  width: 100%;
  max-width: 220px;
  display: block;
  margin: 0 auto 18px;
  border-radius: 4px;
}

/* Others */
.quote {
  font-size: 0.95rem;
  margin: 18px 0 30px;
  color: #444;
}

.social-inline a {
  display: inline-block;
  margin: 0 6px 6px 0;
  font-size: 0.85rem;
  color: #0b4f9c;
  text-decoration: none;
}

.social-inline a:hover {
  text-decoration: underline;
}

/* Table */
.table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  font-size: 0.95rem;
}

.table th, .table td {
  border: 1px solid #ccc;
  padding: 10px 12px;
  text-align: left;
}

.table th {
  background: #f1f7fd;
  font-weight: 600;
}

/* Badge */
.badge {
  background: #0b74d1;
  color: #fff;
  padding: 3px 8px;
  font-size: 0.7rem;
  border-radius: 4px;
  margin-right: 6px;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* List */
.list {
  padding-left: 20px;
  margin: 8px 0 25px;
}

.list li {
  margin: 6px 0;
}

/* Footer */
.site-footer {
  background: #e9e9e9;
  border-top: 1px solid #d7d7d7;
  text-align: center;
  padding: 18px 10px;
  font-size: 0.8rem;
  color: #555;
}

/* Loading Animation */
.loading {
  text-align: center;
  padding: 120px 0;
  font-size: 1rem;
  color: #666;
}

.fade-in {
  animation: fade 0.4s ease;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Dropdown Menu (Unused but retained) */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #333;
  list-style: none;
  padding: 10px 0;
  min-width: 150px;
  border-radius: 4px;
  z-index: 999;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.dropdown-menu li {
  width: 100%;
}

.dropdown-menu a {
  display: block;
  padding: 10px;
  color: #fff;
}

.dropdown-menu a:hover {
  background: rgb(67, 151, 216);
}

.dropdown:hover > .dropdown-menu {
  display: block;
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  width: 100%;
  padding: 10px;
  font-size: 1rem;
  margin: 10px 0;
  background: #f1f1f1;
  border: 1px solid #ccc;
  border-radius: 5px;
}

/* Responsive Behavior */
@media (max-width: 768px) {
  .mobile-nav {
    display: block;
  }

  .main-nav ul {
    display: none;
  }

  .main-nav li {
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    text-align: left;
  }

  .site-header {
    padding: 16px;
    text-align: center;
  }

  .site-title {
    font-size: 1.7rem;
  }

  .section-wrapper {
    padding: 25px 20px;
  }

  body {
    font-size: 16px;
  }
}