body {
  padding-top: 0px;
}

.navbar-brand {
  font-weight: bold;
}

.overlay-logo {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 100px;
}

.section-title {
  margin-top: 60px;
  margin-bottom: 20px;
}

footer {
  padding: 20px 0;
  background-color: #f8f9fa;
  margin-top: 60px;
}

/* Speaker images and social icons */
.speaker-img {
  width: 100px;
  height: 100px;
  object-fit: cover;
}

.social-icon {
  width: 30px;
  height: 30px;
}

/* Banner styling */
#banner img {
  max-height: 100%;
  object-fit: cover;
}

#downloadButton {
  padding: 12px 30px;
  background-color: #4CAF50;
  color: white;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s, transform 0.2s;
}

#downloadButton:hover {
  background-color: #45a049;
  transform: scale(1.05);
}

#downloadButton:active {
  background-color: #388e3c;
  transform: scale(0.98);
}

.bannerlogo {
  width: 20%;
  height: auto;
  z-index: 2;
  opacity: 0.8;
  top: 15%;
  right: 5%;
  left: auto;
  margin: 0;
}

/* Banner overlay row: info card + carousel side by side */
.banner-overlay-row {
  position: relative;
  z-index: 3;
  margin-top: -60vh;
  margin-bottom: 60px;
}

.banner-info-card {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.banner-info-card h1 {
  font-size: 1.8rem;
  margin-bottom: 0.25rem;
}

.banner-info-card h2 {
  font-size: 1.1rem;
  font-weight: 400;
  opacity: 0.9;
  margin-bottom: 0.75rem;
}

.banner-info-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.banner-info-card p {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.banner-info-card a.text-white {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.banner-carousel-card {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  border-radius: 12px;
}

@media screen and (max-width: 768px) {
  .bannerlogo {
    display: none;
  }

  .banner-overlay-row {
    margin-top: -20vh;
  }

  .banner-info-card h1 {
    font-size: 1.4rem;
  }

  .banner-info-card h2 {
    font-size: 1rem;
  }
}

/* Landing page event cards */
.event-card-inner {
  transition: transform 0.2s, box-shadow 0.2s;
}

.event-card-inner:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Filter buttons */
.filter-btn {
  margin: 0 4px;
}

.filter-btn.active {
  background-color: #0d6efd;
  color: white;
}

/* ========================================
   Navbar Dropdown Hover (desktop)
   ======================================== */
@media (min-width: 992px) {
  .navbar .dropdown:hover > .dropdown-menu {
    display: block;
    margin-top: 0;
  }
}

.navbar .dropdown-menu {
  min-width: 280px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
  min-height: 80vh;
  background: url('/assets/images/banners/cvpr2025-banner.jpg') center/cover no-repeat;
  position: relative;
  overflow: hidden;
  padding-top: 56px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  pointer-events: none;
}

.hero-section h1 {
  font-size: 3.2rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-section .lead {
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
  .hero-section {
    min-height: 60vh;
  }
  .hero-section h1 {
    font-size: 2rem;
  }
}

/* ========================================
   Placeholder Images
   ======================================== */
.placeholder-img {
  background-color: #e9ecef;
  border: 2px dashed #adb5bd;
  border-radius: 12px;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.placeholder-img span {
  color: #6c757d;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
}

/* ========================================
   Stagger Offsets
   ======================================== */
.placeholder-left {
  margin-top: -20px;
}

.placeholder-right {
  margin-top: 40px;
}

@media (max-width: 768px) {
  .placeholder-left,
  .placeholder-right {
    margin-top: 0;
  }
}

/* ========================================
   Content Section Typography
   ======================================== */
#about h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

#about h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

#about p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #495057;
}

/* ========================================
   Category Page
   ======================================== */
/* ========================================
   Impressions Carousel
   ======================================== */
#impressionsCarousel .carousel-inner {
  border-radius: 12px;
  overflow: hidden;
}

#impressionsCarousel .carousel-item img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

#impressionsCarousel .carousel-caption {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 8px 16px;
  bottom: 20px;
}

#impressionsCarousel .carousel-caption p {
  margin: 0;
  font-size: 0.95rem;
}

.category-empty {
  text-align: center;
  padding: 60px 20px;
  color: #6c757d;
}