/* Bluebell Harp AI — Design System */
:root {
  /* ── Colors (HSL) ── */
  --background: 210 55% 98%;
  --foreground: 222 35% 14%;

  --primary: 205 78% 55%;
  --primary-foreground: 210 40% 98%;

  --secondary: 210 45% 94%;
  --secondary-foreground: 222 35% 14%;

  --accent: 330 70% 86%;
  --accent-foreground: 222 35% 14%;

  --muted: 210 35% 92%;
  --muted-foreground: 220 12% 40%;

  --destructive: 0 78% 58%;
  --border: 210 28% 86%;
  --ring: 205 78% 55%;

  --card: 0 0% 100%;
  --card-foreground: 222 35% 14%;

  /* Extra tokens */
  --brand-babyblue: 205 78% 55%;
  --brand-cream: 45 60% 96%;
  --brand-ink: 222 35% 14%;
  --brand-powder: 210 55% 98%;
  --brand-rose: 330 70% 86%;
  --brand-lilac: 265 55% 86%;

  /* ── Shadows ── */
  --shadow-sm: 0 1px 2px 0 hsl(var(--foreground) / 0.05);
  --shadow-md: 0 10px 18px -14px hsl(var(--foreground) / 0.22), 0 2px 6px -4px hsl(var(--foreground) / 0.10);
  --shadow-lg: 0 18px 40px -26px hsl(var(--foreground) / 0.30), 0 10px 18px -14px hsl(var(--foreground) / 0.12);
  --shadow-elegant: 0 18px 50px -24px hsl(var(--primary) / 0.35);

  /* ── Gradients ── */
  --gradient-primary: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--accent)));
  --gradient-subtle: linear-gradient(135deg, hsl(var(--background)), hsl(var(--secondary)));
  --gradient-dream: radial-gradient(1200px 600px at 10% 0%, hsl(var(--accent) / 0.55), transparent 55%), radial-gradient(900px 500px at 90% 10%, hsl(var(--primary) / 0.35), transparent 55%), linear-gradient(180deg, hsl(var(--background)), hsl(var(--secondary)));

  /* ── Transitions ── */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* ── Border Radius ── */
  --radius-sm: 0.5rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.1rem;
  --radius-xl: 1.35rem;
  --radius-full: 9999px;

  /* ── Typography ── */
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --font-cursive: ui-rounded, "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;

  /* Layout */
  --container-max: 1200px;
}

.dark, [data-theme="dark"] {
  --background: 222 35% 10%;
  --foreground: 210 40% 98%;

  --primary: 205 78% 60%;
  --primary-foreground: 222 35% 10%;

  --secondary: 222 25% 16%;
  --secondary-foreground: 210 40% 98%;

  --accent: 330 65% 70%;
  --accent-foreground: 210 40% 98%;

  --muted: 222 20% 18%;
  --muted-foreground: 215 18% 70%;

  --border: 222 18% 24%;
  --ring: 205 78% 60%;

  --card: 222 28% 13%;
  --card-foreground: 210 40% 98%;

  --shadow-sm: 0 1px 2px 0 hsl(var(--foreground) / 0.06);
  --shadow-md: 0 10px 18px -14px hsl(0 0% 0% / 0.55), 0 2px 6px -4px hsl(0 0% 0% / 0.35);
  --shadow-lg: 0 18px 40px -26px hsl(0 0% 0% / 0.65), 0 10px 18px -14px hsl(0 0% 0% / 0.35);
  --shadow-elegant: 0 18px 50px -24px hsl(var(--primary) / 0.25);
}

html, body {
  height: 100%;
  font-family: var(--font-sans);
}

/* Soft polka-dot wallpaper */
.bb-wallpaper {
  background-image:
    radial-gradient(circle at 12px 12px, hsl(var(--primary) / 0.12) 2px, transparent 2.5px),
    radial-gradient(circle at 36px 36px, hsl(var(--accent) / 0.12) 2px, transparent 2.5px),
    var(--gradient-dream);
  background-size: 48px 48px, 48px 48px, auto;
}

/* Cursive headings */
.bb-cursive {
  font-family: var(--font-cursive);
  letter-spacing: 0.2px;
}

/* Focus ring */
.bb-focus:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px hsl(var(--ring) / 0.25);
}

/* Scrollbars (subtle) */
.bb-scroll {
  scrollbar-width: thin;
  scrollbar-color: hsl(var(--primary) / 0.35) transparent;
}
.bb-scroll::-webkit-scrollbar {
  width: 10px;
}
.bb-scroll::-webkit-scrollbar-thumb {
  background: hsl(var(--primary) / 0.25);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* Buttons */
.bb-btn {
  transition: transform var(--transition-fast), box-shadow var(--transition-smooth), background var(--transition-smooth), color var(--transition-smooth);
}
.bb-btn:active {
  transform: translateY(1px);
}

/* Cards */
.bb-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-xl);
}

/* Tiny harp mark */
.bb-harp {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 30% 30%, hsl(var(--accent) / 0.9), transparent 55%), radial-gradient(circle at 70% 70%, hsl(var(--primary) / 0.9), transparent 55%), linear-gradient(135deg, hsl(var(--brand-cream)), hsl(var(--card)));
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.bb-harp:before {
  content: "";
  position: absolute;
  inset: 10px 18px 10px 18px;
  border-radius: 999px;
  border: 2px solid hsl(var(--foreground) / 0.18);
}
.bb-harp:after {
  content: "";
  position: absolute;
  left: 50%;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, transparent, hsl(var(--foreground) / 0.25), transparent);
  transform: translateX(-50%);
  box-shadow: -6px 0 0 hsl(var(--foreground) / 0.18), 6px 0 0 hsl(var(--foreground) / 0.18);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .bb-btn {
    transition: none;
  }
}