/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Forum", serif;
  background-color: #fdf6e3;
  color: #3c3c3c;
  transition: background 0.3s, color 0.3s;
}

.dark-theme {
  background-color: #1f1f28;
  color: #e0e0dc;
}

/* Banner */
.banner {
  background-color: #2f3e46;
  color: #fdf6e3;
  padding: 20px 40px;
  text-align: center;
}

.banner-content h1 {
  font-size: 36px;
  margin-bottom: 5px;
  letter-spacing: 1px;
}

.banner-content .tagline {
  font-size: 16px;
  color: #dcd5b1;
}

/* ===========================
   NAVIGATION BAR
=========================== */
.navbar {
  background-color: var(--nav-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  flex-wrap: wrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-links a,
.dropbtn,
#theme-toggle {
  color: var(--banner-text);
  background: none;
  border: none;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  cursor: pointer;
  font-family: inherit;
  padding: 5px 10px;
}

.nav-links a:hover,
.dropbtn:hover,
#theme-toggle:hover {
  text-decoration: underline;
}

/* Dropdown Styles */
.dropdown {
  position: relative;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #f9f5e3;
  min-width: 180px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  border: 1px solid #bfae7c;
  z-index: 1000;
}

.dropdown-content a {
  color: #2f3e46;
  padding: 10px 16px;
  text-decoration: none;
  display: block;
  font-size: 14px;
}

.dropdown-content a:hover {
  background-color: #e6e0c8;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dark-theme .dropdown-content {
  background-color: #2a2a38;
  border-color: #444;
}

.dark-theme .dropdown-content a {
  color: #e0e0dc;
}

.dark-theme .dropdown-content a:hover {
  background-color: #3b3b4a;
}

/* Hero Section */
.hero {
  background-color: #e8decf;
  padding: 60px 20px;
  text-align: center;
}

.dark-theme .hero {
  background-color: #2f2f3a;
}

.hero-content h2 {
  font-size: 32px;
  margin-bottom: 10px;
  color: #2f3e46;
}

.dark-theme .hero-content h2 {
  color: #f4f4ec;
}

.hero-content p {
  font-size: 18px;
  color: #555;
}

.dark-theme .hero-content p {
  color: #bfbfbf;
}

/* Topics Section */
.topics {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

.topics h3 {
  font-size: 24px;
  margin-bottom: 20px;
  text-align: center;
  color: #2f3e46;
}

.dark-theme .topics h3 {
  color: #e0e0dc;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.topic-card {
  background-color: #fffef9;
  border: 1px solid #d2c69a;
  padding: 30px 20px;
  text-align: center;
  font-size: 18px;
  color: #3f5641;
  text-decoration: none;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.topic-card:hover {
  background-color: #f2ebd8;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.dark-theme .topic-card {
  background-color: #2a2a38;
  border: 1px solid #444;
  color: #e0e0dc;
}

.dark-theme .topic-card:hover {
  background-color: #353543;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  background-color: #3f5641;
  font-size: 14px;
  color: #fdf6e3;
  margin-top: 40px;
}

.dark-theme .footer {
  background-color: #2a2a38;
  color: #e0e0dc;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .topics-grid {
    grid-template-columns: 1fr;
  }

  .dropdown-content {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 10px;
  }

  .dropdown:hover .dropdown-content {
    display: block;
  }
}