:root {
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --background: 222 78% 98%;
  --foreground: 228 46% 14%;
  --card: 220 100% 99%;
  --card-foreground: 228 46% 14%;
  --popover: 220 100% 99%;
  --popover-foreground: 228 46% 14%;
  --primary: 252 84% 62%;
  --primary-foreground: 0 0% 100%;
  --secondary: 180 58% 86%;
  --secondary-foreground: 218 52% 18%;
  --muted: 230 44% 93%;
  --muted-foreground: 229 21% 39%;
  --accent: 169 72% 44%;
  --accent-foreground: 218 55% 12%;
  --destructive: 0 72% 51%;
  --destructive-foreground: 0 0% 100%;
  --success: 154 64% 38%;
  --success-foreground: 0 0% 100%;
  --warning: 38 92% 50%;
  --warning-foreground: 228 46% 14%;
  --info: 210 92% 56%;
  --info-foreground: 0 0% 100%;
  --border: 229 37% 86%;
  --input: 229 37% 86%;
  --ring: 252 84% 62%;
  --radius: 0.625rem;
  --shadow-sm: 0 1px 2px hsl(var(--foreground) / 0.05);
  --shadow-md: 0 4px 12px hsl(var(--foreground) / 0.08);
  --shadow-lg: 0 12px 32px hsl(var(--foreground) / 0.12);
  --shadow-elegant: 0 24px 64px hsl(var(--primary) / 0.22);
  --transition-fast: 150ms cubic-bezier(0.4,0,0.2,1);
  --transition: 200ms cubic-bezier(0.4,0,0.2,1);
  --transition-smooth: 300ms cubic-bezier(0.4,0,0.2,1);
}

html.dark {
  --background: 232 42% 9%;
  --foreground: 220 60% 96%;
  --card: 232 38% 14%;
  --card-foreground: 220 60% 96%;
  --popover: 232 38% 13%;
  --popover-foreground: 220 60% 96%;
  --primary: 258 92% 74%;
  --primary-foreground: 238 46% 10%;
  --secondary: 190 44% 22%;
  --secondary-foreground: 184 74% 90%;
  --muted: 232 30% 20%;
  --muted-foreground: 224 24% 76%;
  --accent: 166 70% 55%;
  --accent-foreground: 232 42% 9%;
  --destructive: 0 70% 58%;
  --destructive-foreground: 0 0% 100%;
  --success: 151 58% 48%;
  --success-foreground: 232 42% 9%;
  --warning: 42 91% 61%;
  --warning-foreground: 232 42% 9%;
  --info: 210 96% 66%;
  --info-foreground: 232 42% 9%;
  --border: 232 24% 28%;
  --input: 232 24% 28%;
  --ring: 258 92% 74%;
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body {
  min-height: 100%;
  margin: 0;
  font-family: var(--font-sans);
  color: hsl(var(--foreground));
  background: hsl(var(--background));
}
button, input, select, textarea { font: inherit; }
input, select, textarea { font-size: max(16px, 1rem); }

.liquid-bg {
  background:
    radial-gradient(circle at 12% 18%, hsl(var(--secondary) / 0.70), transparent 34%),
    radial-gradient(circle at 82% 8%, hsl(var(--primary) / 0.26), transparent 32%),
    radial-gradient(circle at 78% 78%, hsl(var(--accent) / 0.22), transparent 36%),
    hsl(var(--background));
}

.glass-panel {
  border: 1px solid hsl(var(--border) / 0.72);
  background: linear-gradient(135deg, hsl(var(--card) / 0.82), hsl(var(--card) / 0.54));
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(24px) saturate(135%);
}

.glass-popover {
  border: 1px solid hsl(var(--border) / 0.74);
  background: linear-gradient(135deg, hsl(var(--popover) / 0.92), hsl(var(--popover) / 0.66));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(24px) saturate(145%);
}

.mobile-safe-main { padding-bottom: calc(5rem + env(safe-area-inset-bottom)); }
.bottom-safe { padding-bottom: env(safe-area-inset-bottom); }
.top-safe { padding-top: env(safe-area-inset-top); }
.typing-dot { animation: typing-bounce 1.1s infinite ease-in-out; }
.typing-dot:nth-child(2) { animation-delay: 140ms; }
.typing-dot:nth-child(3) { animation-delay: 280ms; }
@keyframes typing-bounce { 0%, 80%, 100% { transform: translateY(0); opacity: .45; } 40% { transform: translateY(-4px); opacity: 1; } }
@media (min-width: 768px) { .mobile-safe-main { padding-bottom: 0; } }