:root {
  --background: 42 44% 96%;
  --foreground: 164 35% 12%;
  --primary: 158 76% 32%;
  --primary-foreground: 0 0% 100%;
  --secondary: 34 92% 57%;
  --secondary-foreground: 164 35% 12%;
  --muted: 158 18% 88%;
  --muted-foreground: 165 12% 38%;
  --destructive: 2 72% 52%;
  --destructive-foreground: 0 0% 100%;
  --border: 158 20% 78%;
  --card: 0 0% 100%;
  --card-foreground: 164 35% 12%;
  --accent: 189 72% 42%;
  --shadow-sm: 0 2px 10px hsl(164 35% 12% / 0.08);
  --shadow-md: 0 14px 34px hsl(164 35% 12% / 0.12);
  --shadow-lg: 0 24px 70px hsl(164 35% 12% / 0.18);
  --transition-fast: 140ms ease;
  --transition-smooth: 260ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
}

.dark {
  --background: 164 28% 8%;
  --foreground: 42 44% 94%;
  --primary: 154 70% 48%;
  --primary-foreground: 164 35% 8%;
  --secondary: 34 90% 62%;
  --secondary-foreground: 164 35% 8%;
  --muted: 164 20% 16%;
  --muted-foreground: 158 12% 70%;
  --destructive: 2 76% 58%;
  --destructive-foreground: 0 0% 100%;
  --border: 164 18% 24%;
  --card: 164 25% 12%;
  --card-foreground: 42 44% 94%;
  --accent: 189 74% 55%;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, hsl(var(--secondary) / 0.22), transparent 34rem),
    radial-gradient(circle at 85% 12%, hsl(var(--primary) / 0.18), transparent 28rem),
    hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, a { transition: all var(--transition-smooth); }

.code-scroll::-webkit-scrollbar { width: 10px; height: 10px; }
.code-scroll::-webkit-scrollbar-track { background: hsl(var(--muted)); border-radius: 999px; }
.code-scroll::-webkit-scrollbar-thumb { background: hsl(var(--primary) / 0.65); border-radius: 999px; }

.glass-card {
  background: hsl(var(--card) / 0.86);
  border: 1px solid hsl(var(--border) / 0.8);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

.hero-grid {
  background-image:
    linear-gradient(hsl(var(--border) / 0.45) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--border) / 0.45) 1px, transparent 1px);
  background-size: 24px 24px;
}

pre { tab-size: 2; }

.pulse-soft { animation: pulseSoft 2.2s ease-in-out infinite; }
@keyframes pulseSoft {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.03); opacity: 0.86; }
}