/* Color Palette */
:root {
  --primary-color: #333333;    /* Dark Charcoal for a neutral, professional look */
  --accent-color: #e67e22;     /* Warm Orange to match banner */
  --text-color: #333333;
  --light-bg: #f8f9fa;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--primary-color);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
  border-bottom: 3px solid var(--accent-color);
  padding-bottom: 10px;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
}

h2::after {
  content: "";
  flex: 1;
  margin-left: 15px;
  height: 1px;
  background: #ddd;
}

/* Navbar & Brand elements */
.navbar {
  background-color: var(--primary-color) !important;
  border-bottom: 4px solid var(--accent-color);
}

.navbar-nav .nav-link {
  color: white !important;
}

.navbar-brand {
  color: white !important;
  font-weight: 700;
}

.navbar-nav .nav-link.active {
  color: var(--accent-color) !important;
  font-weight: bold;
}

/* Callout optimization */
.callout-important {
  border-left-color: var(--accent-color) !important;
  background-color: #fffbf5 !important;
}

.callout-important .callout-header {
  background-color: var(--accent-color) !important;
  color: white !important;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: white !important;
  padding: 2rem 0;
}

footer a {
  color: var(--accent-color) !important;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Tables */
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
}

th {
  background-color: var(--primary-color);
  color: white !important;
  text-align: left;
  padding: 12px;
}

td {
  padding: 12px;
  border-bottom: 1px solid #eee;
}

tr:nth-child(even) {
  background-color: var(--light-bg);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 2rem 0;
  background-color: var(--light-bg);
  margin-bottom: 2rem;
  border-radius: 8px;
}

.hero h1 {
  border-bottom: none;
  font-size: 3rem;
  margin-top: 1rem;
}

/* Quick Links Grid */
.quick-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.quick-link-card {
  padding: 1.5rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  transition: all 0.3s ease;
  background: white;
}

.quick-link-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transform: translateY(-5px);
}

.quick-link-card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.quick-link-card a {
  color: var(--accent-color);
  text-decoration: none;
}

.quick-link-card a:hover {
  text-decoration: underline;
}

/* Speaker Cards */
.speaker-card {
  padding: 1.5rem;
  border-left: 5px solid var(--accent-color);
  background-color: var(--light-bg);
  margin-bottom: 1.5rem;
  border-radius: 0 8px 8px 0;
  transition: transform 0.2s ease;
}

.speaker-card:hover {
  transform: translateX(5px);
}

.speaker-info {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}