:root {
  --background: 0 0% 98%;
  --foreground: 220 15% 15%;

  --primary: 217 91% 60%;
  --primary-foreground: 0 0% 100%;
  --primary-dark: 217 91% 45%;
  --primary-light: 217 91% 75%;

  --secondary: 220 15% 15%;
  --secondary-foreground: 0 0% 100%;

  --accent: 217 91% 60%;
  --accent-foreground: 0 0% 100%;
  --accent-glow: 217 91% 60% / 0.3;

  --muted: 220 13% 91%;
  --muted-foreground: 220 15% 40%;

  --card: 0 0% 100%;
  --card-foreground: 220 15% 15%;

  --popover: 0 0% 100%;
  --popover-foreground: 220 15% 15%;

  --border: 220 13% 91%;
  --input: 220 13% 91%;
  --ring: 217 91% 60%;

  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 100%;
  --success: 142 76% 45%;
  --success-foreground: 0 0% 100%;
  --warning: 38 92% 50%;
  --warning-foreground: 0 0% 100%;

  --gradient-primary: linear-gradient(135deg, hsl(217 91% 60%), hsl(217 91% 45%));
  --gradient-hero: linear-gradient(135deg, hsl(220 15% 15%), hsl(217 91% 25%));
  --gradient-card: linear-gradient(145deg, hsl(0 0% 100%), hsl(220 13% 97%));
  --shadow-sm: 0 1px 2px 0 hsl(220 15% 15% / 0.05);
  --shadow-md: 0 4px 6px -1px hsl(220 15% 15% / 0.1), 0 2px 4px -1px hsl(220 15% 15% / 0.06);
  --shadow-lg: 0 10px 15px -3px hsl(220 15% 15% / 0.1), 0 4px 6px -2px hsl(220 15% 15% / 0.05);
  --shadow-glow: 0 0 0 1px hsl(217 91% 60% / 0.3), 0 0 20px hsl(217 91% 60% / 0.3);

  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  --radius: 0.75rem;
}

.dark {
  --background: 220 15% 8%;
  --foreground: 0 0% 95%;

  --primary: 217 91% 65%;
  --primary-foreground: 220 15% 8%;
  --primary-dark: 217 91% 45%;
  --primary-light: 217 91% 75%;

  --secondary: 0 0% 15%;
  --secondary-foreground: 0 0% 95%;

  --accent: 217 91% 65%;
  --accent-foreground: 220 15% 8%;
  --accent-glow: 217 91% 65% / 0.4;

  --muted: 220 15% 15%;
  --muted-foreground: 220 15% 70%;

  --card: 220 15% 12%;
  --card-foreground: 0 0% 95%;

  --popover: 220 15% 12%;
  --popover-foreground: 0 0% 95%;

  --border: 220 15% 20%;
  --input: 220 15% 20%;
  --ring: 217 91% 65%;

  --gradient-hero: linear-gradient(135deg, hsl(220 15% 8%), hsl(217 91% 15%));
  --gradient-card: linear-gradient(145deg, hsl(220 15% 12%), hsl(220 15% 8%));
  --shadow-glow: 0 0 0 1px hsl(217 91% 65% / 0.4), 0 0 30px hsl(217 91% 65% / 0.4);
}

.bg-background {
  background-color: hsl(var(--background));
}

.text-foreground {
  color: hsl(var(--foreground));
}

.bg-primary {
  background-color: hsl(var(--primary));
}

.text-primary {
  color: hsl(var(--primary));
}

.text-primary-foreground {
  color: hsl(var(--primary-foreground));
}

.bg-secondary {
  background-color: hsl(var(--secondary));
}

.text-secondary-foreground {
  color: hsl(var(--secondary-foreground));
}

.bg-card {
  background-color: hsl(var(--card));
}

.text-card-foreground {
  color: hsl(var(--card-foreground));
}

.text-success {
  color: hsl(var(--success));
}

.text-warning {
  color: hsl(var(--warning));
}

.border-primary {
  border-color: hsl(var(--primary));
}

.bg-gradient-primary {
  background: var(--gradient-primary);
}

.bg-gradient-hero {
  background: var(--gradient-hero);
}

.shadow-glow {
  box-shadow: var(--shadow-glow);
}

.carousel-container {
  position: relative;
  overflow: hidden;
  height: 100vh;
}

.carousel-track {
  display: flex;
  width: 500%;
  transition: transform 0.5s ease-in-out;
}

.carousel-slide {
  width: 20%;
  flex-shrink: 0;
}

.btn-hero {
  background: var(--gradient-primary);
  color: hsl(var(--primary-foreground));
  padding: 1rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-hero:hover {
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.btn-compete {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: 1rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition-smooth);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-compete:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

.mobile-menu {
  transform: translateX(-100%);
  transition: transform 0.3s ease-in-out;
}

.mobile-menu.open {
  transform: translateX(0);
}

html {
  scroll-behavior: smooth;
}

.dropdown-content {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
}

.dropdown-content.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.blue-outline {
  border-color: hsl(var(--primary));
  color: hsl(var(--primary));
}

.blue-outline:hover {
  border-color: hsl(var(--primary));
  background-color: hsl(var(--primary));
  color: #ffffff;
}

.text-glow {
  text-shadow: #3e83f6 1px 0 10px;
}

.border-white {
  border-color: white;
}

.shadow {
  filter: drop-shadow(10px 10px 4px #2d2c2c);
}