:root {
  --background: 90 38% 96%;
  --foreground: 164 38% 12%;
  --primary: 154 82% 32%;
  --primary-foreground: 0 0% 100%;
  --secondary: 74 80% 88%;
  --secondary-foreground: 164 38% 12%;
  --muted: 88 30% 90%;
  --muted-foreground: 164 15% 38%;
  --destructive: 0 78% 52%;
  --destructive-foreground: 0 0% 100%;
  --border: 154 22% 79%;
  --card: 0 0% 100%;
  --shadow-sm: 0 8px 24px hsl(164 38% 12% / 0.08);
  --shadow-md: 0 16px 44px hsl(164 38% 12% / 0.13);
  --shadow-lg: 0 28px 80px hsl(164 38% 12% / 0.18);
  --transition-fast: 150ms ease;
  --transition-smooth: 260ms cubic-bezier(0.22, 1, 0.36, 1);
  --radius-sm: 0.75rem;
  --radius-md: 1.25rem;
  --radius-lg: 2rem;
}

.dark {
  --background: 162 40% 8%;
  --foreground: 86 45% 94%;
  --primary: 145 72% 49%;
  --primary-foreground: 162 40% 8%;
  --secondary: 164 32% 16%;
  --secondary-foreground: 86 45% 94%;
  --muted: 164 28% 14%;
  --muted-foreground: 86 18% 72%;
  --destructive: 0 76% 62%;
  --destructive-foreground: 0 0% 100%;
  --border: 164 22% 24%;
  --card: 164 35% 11%;
  --shadow-sm: 0 8px 24px hsl(0 0% 0% / 0.22);
  --shadow-md: 0 16px 44px hsl(0 0% 0% / 0.32);
  --shadow-lg: 0 28px 80px hsl(0 0% 0% / 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: hsl(var(--background));
}

button, a, input, select, textarea {
  transition: transform var(--transition-smooth), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.input {
  width: 100%;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius-md);
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  padding: 0.9rem 1rem;
  outline: none;
  font-weight: 650;
}

.input:focus {
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 4px hsl(var(--primary) / 0.15);
}

.field-gradient {
  min-height: 360px;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.22) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.22) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, transparent 0 46px, rgba(255,255,255,0.7) 47px 49px, transparent 50px),
    linear-gradient(135deg, hsl(154 82% 32%), hsl(110 70% 34%));
  background-size: 44px 44px, 44px 44px, 100% 100%, 100% 100%;
}

input[type="range"] {
  accent-color: hsl(var(--primary));
}

::selection {
  background: hsl(var(--primary) / 0.22);
}