:root {
  --background: 222 40% 98%;
  --foreground: 232 28% 16%;
  --primary: 258 84% 60%;
  --secondary: 187 72% 48%;
  --muted: 220 26% 92%;
  --destructive: 0 76% 57%;
  --border: 225 24% 84%;
  --card: 0 0% 100%;
  --shadow-sm: 0 10px 30px hsla(258, 84%, 30%, 0.08);
  --shadow-md: 0 18px 50px hsla(258, 84%, 25%, 0.14);
  --shadow-lg: 0 24px 80px hsla(258, 84%, 20%, 0.18);
  --transition-fast: 160ms ease;
  --transition-smooth: 320ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
}

.dark {
  --background: 232 30% 10%;
  --foreground: 220 33% 96%;
  --primary: 267 92% 72%;
  --secondary: 187 82% 62%;
  --muted: 231 22% 18%;
  --destructive: 0 85% 64%;
  --border: 230 20% 26%;
  --card: 232 28% 13%;
  --shadow-sm: 0 10px 30px hsla(232, 50%, 2%, 0.25);
  --shadow-md: 0 18px 50px hsla(232, 50%, 2%, 0.35);
  --shadow-lg: 0 24px 80px hsla(232, 50%, 2%, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, hsla(258, 84%, 60%, 0.12), transparent 32%),
    radial-gradient(circle at top right, hsla(187, 72%, 48%, 0.12), transparent 28%),
    hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

::selection {
  background: hsla(258, 84%, 60%, 0.24);
}

.card-surface {
  background: hsl(var(--card) / 0.88);
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(14px);
}

.glass-panel {
  background: linear-gradient(180deg, hsl(var(--card) / 0.9), hsl(var(--card) / 0.72));
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-sm);
}

.soft-grid {
  background-image:
    linear-gradient(hsla(225, 24%, 60%, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, hsla(225, 24%, 60%, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
}

.gradient-badge {
  background: linear-gradient(135deg, hsl(var(--primary) / 0.16), hsl(var(--secondary) / 0.16));
}

.primary-glow {
  box-shadow: 0 0 0 1px hsl(var(--primary) / 0.1), 0 20px 60px hsl(var(--primary) / 0.18);
}

.animate-float {
  animation: floaty 5s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

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

.skeleton {
  background: linear-gradient(90deg, hsl(var(--muted) / 0.8), hsl(var(--card)), hsl(var(--muted) / 0.8));
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
}

.code-block {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

button, textarea, input, select {
  font: inherit;
}

button {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

button:hover {
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0px) scale(0.99);
}

textarea:focus, input:focus, select:focus {
  outline: none;
  box-shadow: 0 0 0 4px hsl(var(--primary) / 0.14);
}

a {
  color: inherit;
  text-decoration: none;
}

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