:root {
  --background: 222 58% 8%;
  --foreground: 220 18% 91%;
  --primary: 221 76% 48%;
  --secondary: 217 39% 12%;
  --muted: 217 18% 65%;
  --destructive: 0 72% 54%;
  --border: 219 23% 22%;
  --card: 222 34% 12%;
  --shadow-sm: 0 8px 24px rgba(2, 8, 23, 0.18);
  --shadow-md: 0 18px 45px rgba(2, 8, 23, 0.35);
  --shadow-lg: 0 28px 80px rgba(2, 8, 23, 0.5);
  --transition-fast: 180ms ease;
  --transition-smooth: 420ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 22px;
}

.dark {
  --background: 222 58% 8%;
  --foreground: 220 18% 91%;
  --primary: 221 76% 48%;
  --secondary: 217 39% 12%;
  --muted: 217 18% 65%;
  --destructive: 0 72% 54%;
  --border: 219 23% 22%;
  --card: 222 34% 12%;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, hsl(var(--primary) / 0.18), transparent 26%),
    radial-gradient(circle at 80% 10%, hsl(238 80% 66% / 0.16), transparent 24%),
    radial-gradient(circle at 60% 80%, hsl(var(--primary) / 0.12), transparent 30%),
    hsl(var(--background));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

::selection {
  background: hsl(var(--primary) / 0.25);
  color: hsl(var(--foreground));
}

.glass {
  background: linear-gradient(180deg, hsl(var(--card) / 0.72), hsl(var(--secondary) / 0.76));
  border: 1px solid hsl(var(--border) / 0.8);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.card-hover {
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
}

.card-hover:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: hsl(var(--primary) / 0.5);
}

.btn-glow {
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn-glow:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px hsl(var(--primary) / 0.18), 0 12px 28px hsl(var(--primary) / 0.24);
}

.btn-glow::after {
  content: "";
  position: absolute;
  inset: -120%;
  background: radial-gradient(circle, hsl(0 0% 100% / 0.22) 0%, transparent 45%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-glow:hover::after {
  opacity: 1;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: slideUp 0.8s ease forwards;
}

.fade-in {
  opacity: 0;
  animation: fadeIn 0.7s ease forwards;
}

.shimmer {
  background: linear-gradient(90deg, hsl(var(--card)) 25%, hsl(var(--border) / 0.7) 50%, hsl(var(--card)) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s linear infinite;
}

.grid-bg {
  background-image:
    linear-gradient(hsl(var(--border) / 0.16) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--border) / 0.16) 1px, transparent 1px);
  background-size: 30px 30px;
}

.hero-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(50px);
  opacity: 0.55;
  pointer-events: none;
}

input, select, textarea {
  outline: none;
}

.input-field {
  background: hsl(var(--secondary) / 0.75);
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.input-field:focus {
  border-color: hsl(var(--primary) / 0.8);
  box-shadow: 0 0 0 4px hsl(var(--primary) / 0.12);
  transform: translateY(-1px);
}

.slot-available {
  border-color: hsl(145 70% 42% / 0.55);
  background: linear-gradient(180deg, hsl(145 70% 42% / 0.12), hsl(var(--card) / 0.95));
}

.slot-booked {
  border-color: hsl(var(--destructive) / 0.65);
  background: linear-gradient(180deg, hsl(var(--destructive) / 0.12), hsl(var(--card) / 0.95));
}

.toast-enter {
  animation: slideUp 0.35s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  50% { transform: translateY(-16px) translateX(8px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 hsl(var(--primary) / 0.22); }
  50% { box-shadow: 0 0 0 12px hsl(var(--primary) / 0); }
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}