/* ========================================
   F1 Data Viz — Premium Racing Theme
   Custom styles for Dash Dashboard
   ======================================== */

/* Smooth scrolling for the whole page */
html {
  scroll-behavior: smooth;
}

/* Racing stripe accent line */
.racing-stripe {
  position: relative;
}

.racing-stripe::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #D62728 33%, #1F77B4 33%, #1F77B4 66%, #FF7F0E 66%);
}

/* Card hover effect - subtle lift */
.card-hover {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12) !important;
}

/* Navbar blur backdrop */
.navbar-blur {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Section fade-in animation (quick) */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-section {
  animation: fadeInUp 0.4s ease-out forwards;
}

/* Gradient text for hero title */
.gradient-text {
  background: linear-gradient(135deg, #D62728 0%, #1F77B4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #F8F7F3;
}

::-webkit-scrollbar-thumb {
  background: #D3D3D3;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #A0A0A0;
}

/* Navbar link active state with indicator */
.nav-link {
  position: relative;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #D62728;
  transition: width 0.2s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Hero title glow effect */
.hero-glow {
  text-shadow: 0 0 40px rgba(214, 39, 40, 0.15);
}

/* Slider track styling override */
.custom-slider .slider-track {
  background: #D3D3D3 !important;
  height: 6px !important;
  border-radius: 3px !important;
}

.custom-slider .slider-thumb {
  background: #D62728 !important;
  width: 18px !important;
  height: 18px !important;
  box-shadow: 0 2px 8px rgba(214, 39, 40, 0.4) !important;
}

.custom-slider .slider-thumb:hover {
  transform: scale(1.1);
  transition: transform 0.2s ease;
}

/* Section badge styling */
.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, rgba(214, 39, 40, 0.1) 0%, rgba(31, 119, 180, 0.1) 100%);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  color: #2C2C2C;
  margin-bottom: 16px;
}

/* Quick transition for all interactive elements */
.interactive {
  transition: all 0.2s ease;
}

/* Insight box styling */
ul li.pl-4 {
  position: relative;
}

ul li.pl-4::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: #D62728;
}

/* Visualization card title emphasis */
h4.text-xl.font-bold {
  color: #2C2C2C;
}

/* Insight box gradient background */
.bg-gradient-to-r.from-gray-50.to-gray-100 {
  border-radius: 8px;
}

/* Bullet point hover effect */
ul li.pl-4.border-l-2 {
  transition: transform 0.2s ease, padding-left 0.2s ease;
}

ul li.pl-4.border-l-2:hover {
  transform: translateX(4px);
  padding-left: 1rem !important;
}