:root {
  --background: 222 46% 7%;
  --foreground: 210 40% 98%;
  --primary: 221 100% 61%;
  --secondary: 220 22% 16%;
  --muted: 218 20% 18%;
  --destructive: 0 72% 56%;
  --border: 219 24% 24%;
  --card: 222 38% 10%;
  --accent: 263 100% 67%;
  --shadow-sm: 0 8px 24px rgba(6, 16, 38, 0.16);
  --shadow-md: 0 18px 50px rgba(3, 10, 28, 0.28);
  --shadow-lg: 0 30px 80px rgba(2, 6, 23, 0.45);
  --transition-fast: 180ms ease;
  --transition-smooth: 380ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.8rem;
  --radius-md: 1.2rem;
  --radius-lg: 1.8rem;
}

.dark {
  --background: 222 46% 7%;
  --foreground: 210 40% 98%;
  --primary: 221 100% 61%;
  --secondary: 220 22% 16%;
  --muted: 218 20% 18%;
  --destructive: 0 72% 56%;
  --border: 219 24% 24%;
  --card: 222 38% 10%;
  --accent: 263 100% 67%;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, hsl(var(--primary) / 0.2), transparent 28%),
    radial-gradient(circle at 80% 0%, hsl(var(--accent) / 0.18), transparent 24%),
    linear-gradient(180deg, hsl(var(--background)), hsl(222 45% 6%));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, sans-serif;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(hsl(var(--border) / 0.12) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--border) / 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black, transparent 85%);
  pointer-events: none;
  z-index: 0;
}

#root {
  position: relative;
  z-index: 1;
}

.glass {
  background: linear-gradient(180deg, hsl(var(--card) / 0.75), hsl(var(--secondary) / 0.52));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid hsl(var(--border) / 0.8);
  box-shadow: var(--shadow-md);
}

.glow-ring {
  box-shadow: 0 0 0 1px hsl(var(--primary) / 0.25), 0 0 30px hsl(var(--accent) / 0.2);
}

.hero-orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(18px);
  opacity: 0.55;
  pointer-events: none;
}

.text-gradient {
  background: linear-gradient(90deg, hsl(var(--foreground)), hsl(var(--primary)), hsl(var(--accent)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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

.card-hover:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: hsl(var(--primary) / 0.5);
}

.btn-premium {
  position: relative;
  overflow: hidden;
}

.btn-premium::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, hsl(var(--foreground) / 0.28) 0%, transparent 46%);
  transform: scale(0);
  opacity: 0;
  transition: transform 420ms ease, opacity 420ms ease;
}

.btn-premium:active::after {
  transform: scale(2.4);
  opacity: 1;
}

.fade-up {
  animation: fadeUp 650ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.fade-in {
  animation: fadeIn 700ms ease both;
}

.page-enter {
  animation: pageEnter 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.parallax {
  transform: translateY(var(--parallax-offset, 0px));
  transition: transform 120ms linear;
}

.input-shell {
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.input-shell:focus-within {
  border-color: hsl(var(--primary) / 0.8);
  box-shadow: 0 0 0 3px hsl(var(--primary) / 0.12), 0 0 22px hsl(var(--accent) / 0.12);
  transform: translateY(-1px);
}

.skeleton {
  background: linear-gradient(90deg, hsl(var(--muted) / 0.85), hsl(var(--secondary) / 0.9), hsl(var(--muted) / 0.85));
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(12px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 1px hsl(var(--primary) / 0.2), 0 0 18px hsl(var(--accent) / 0.15); }
  50% { box-shadow: 0 0 0 1px hsl(var(--primary) / 0.45), 0 0 32px hsl(var(--accent) / 0.32); }
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  background: hsl(var(--secondary));
  border-radius: 9999px;
  border: 2px solid transparent;
}

::-webkit-scrollbar-track {
  background: transparent;
}