/* Online Notice Board - Main site styles (light theme) */

:root {
  --ob-primary: #2c3e50;
  --ob-accent: #3498db;
  --ob-highlight: #2980b9;
  --ob-cta: #e74c3c;
  --ob-text: #2c3e50;
  --ob-muted: #7f8c8d;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #f5f6fa;
  color: var(--ob-text);
  min-height: 100vh;
}

/* Navbar */
.navbar.navbar-default.navbar-fixed-top {
  background: var(--ob-primary) !important;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.navbar .container {
  padding-top: 4px;
  padding-bottom: 4px;
}

.navbar-default .navbar-nav > li > a {
  color: #ecf0f1;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
  color: #fff;
  background: rgba(255,255,255,0.15);
}

.navbar-default .navbar-nav > li > a strong {
  color: #fff;
  font-size: 1.1em;
}

/* Carousel */
.carousel {
  margin-bottom: 0;
  border-radius: 0 0 8px 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.carousel-inner > .item > img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.carousel-control.left,
.carousel-control.right {
  background: none;
  opacity: 0.7;
}

.carousel-control:hover {
  opacity: 1;
}

.carousel-indicators li {
  border-color: var(--ob-cta);
}

.carousel-indicators .active {
  background: var(--ob-cta);
}

/* Main content container */
.container.main-content {
  padding: 40px 15px 60px;
  max-width: 900px;
}

.container.main-content h2 {
  color: var(--ob-text);
  font-weight: 600;
  margin-bottom: 12px;
}

.container.main-content i,
.container.main-content .lead {
  color: var(--ob-muted);
  font-size: 1.05em;
  line-height: 1.6;
}

/* Footer */
.navbar.navbar-bottom {
  margin-bottom: 0;
  border-radius: 0;
  border: none;
  min-height: 48px;
  background: #ecf0f1 !important;
}

.navbar-bottom .nav > li > a,
.navbar-bottom .container {
  color: var(--ob-muted);
  padding-top: 14px;
  font-size: 0.9em;
}

/* About / forms in main content */
.container .row h2,
.container .row h4 {
  color: var(--ob-text);
}

.container .form-control {
  background: #fff;
  border: 1px solid #ddd;
  color: var(--ob-text);
}

.container .form-control:focus {
  border-color: var(--ob-accent);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.btn-success {
  background: #27ae60;
  border-color: #27ae60;
  color: #fff;
}

.btn-success:hover {
  background: #2ecc71;
  border-color: #2ecc71;
  color: #fff;
}