/* ============================================
   DESIGN TOKENS - SaaS Premium Design System
   ============================================ */

@theme {
  /* === SPACING SCALE (8px grid base) === */
  /* 
   * Action 11.2.1.2: Verified spacing scale alignment to 8px grid
   * 
   * Tailwind v4 automatically generates spacing utilities from these CSS variables.
   * 
   * 8px GRID ALIGNMENT:
   * ✅ 8px-aligned values: spacing-0 (0px), spacing-2 (8px), spacing-4 (16px), spacing-6 (24px),
   *    spacing-8 (32px), spacing-12 (48px), spacing-16 (64px), spacing-24 (96px)
   * ⚠️ Not 8px-aligned: spacing-1 (4px), spacing-3 (12px), spacing-5 (20px), spacing-10 (40px), spacing-20 (80px)
   * 
   * NUMERIC SCALE (for precise control):
   * - Use numeric values (0-24) when you need specific pixel values
   * - Examples: gap-4, p-6, m-2, px-8, py-12
   * - Available utilities: gap-*, p-*, m-*, px-*, py-*, mx-*, my-*, space-x-*, space-y-*
   * - PREFERRED (8px-aligned): gap-2 (8px), gap-4 (16px), gap-6 (24px), gap-8 (32px), gap-12 (48px), gap-16 (64px), gap-24 (96px)
   * - AVOID (not 8px-aligned): gap-1 (4px), gap-3 (12px), gap-5 (20px), gap-10 (40px), gap-20 (80px)
   * 
   * SEMANTIC SCALE (for design system consistency):
   * - Use semantic names when you want design-system-aligned spacing
   * - Examples: gap-md, p-lg, m-sm, px-xl
   * - Available utilities: gap-xs, gap-sm, gap-md, gap-lg, gap-xl, gap-2xl, gap-3xl, gap-4xl, gap-5xl, gap-xxl
   *   (and same for p-*, m-*, px-*, py-*, mx-*, my-*, space-x-*, space-y-*)
   * - ✅ 8px-aligned: gap-sm (8px), gap-md (16px), gap-lg (24px), gap-xl (32px), gap-2xl (48px), gap-3xl (64px)
   * - ⚠️ Not 8px-aligned: gap-xs (4px), gap-4xl (80px)
   * 
   * RECOMMENDED USAGE:
   * - Prefer 8px-aligned values for visual rhythm (gap-2, gap-4, gap-6, gap-8, gap-12, gap-16, gap-24)
   * - Use non-8px values (gap-1, gap-3, gap-5, gap-10, gap-20) sparingly, only when absolutely necessary
   * - Avoid arbitrary values (gap-[7px], p-[9px]) - use nearest 8px-aligned value instead
   * - See GRID_SYSTEM.md for complete guidelines
   */
  
  /* Numeric scale (for precise control) */
  --spacing-0: 0;
  --spacing-1: 0.25rem; /* 4px */
  --spacing-2: 0.5rem; /* 8px */
  --spacing-3: 0.75rem; /* 12px */
  --spacing-4: 1rem; /* 16px */
  --spacing-5: 1.25rem; /* 20px */
  --spacing-6: 1.5rem; /* 24px */
  --spacing-8: 2rem; /* 32px */
  --spacing-10: 2.5rem; /* 40px */
  --spacing-12: 3rem; /* 48px */
  --spacing-16: 4rem; /* 64px */
  --spacing-20: 5rem; /* 80px */
  --spacing-24: 6rem; /* 96px */

  /* Semantic scale (for design system consistency) */
  --spacing-xs: 0.25rem; /* 4px - Extra small spacing */
  --spacing-sm: 0.5rem; /* 8px - Small spacing */
  --spacing-md: 1rem; /* 16px - Medium spacing (base) */
  --spacing-lg: 1.5rem; /* 24px - Large spacing */
  --spacing-xl: 2rem; /* 32px - Extra large spacing */
  --spacing-2xl: 3rem; /* 48px - 2X large spacing */
  --spacing-3xl: 4rem; /* 64px - 3X large spacing */
  --spacing-4xl: 5rem; /* 80px - 4X large spacing */
  --spacing-5xl: 6rem; /* 96px - 5X large spacing */
  --spacing-xxl: 6rem; /* 96px - Extra extra large spacing (alias for 5xl) */

  /* === SECTION SPACING === */
  /* 
   * Action 11.4.3.4: Consistent section spacing utility
   * 
   * Standard spacing between major sections on pages.
   * Aligns to 8px grid system (32px = 4× base).
   * 
   * Usage:
   * - Use for spacing between major page sections
   * - Example: space-y-[var(--section-spacing)]
   * - Or use Tailwind utility: space-y-8 (which equals 32px)
   * 
   * Values:
   * - Standard: 32px (4× base) - Most common section spacing
   * - Large: 48px (6× base) - For major page containers (e.g., DashboardPage)
   */
  --section-spacing: 2rem; /* 32px - Standard section spacing (4× base) */
  --section-spacing-lg: 3rem; /* 48px - Large section spacing (6× base) */

  /* === TYPOGRAPHY SCALE === */
  --font-sans:
    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem; /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem; /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem; /* 20px */
  --text-2xl: 1.5rem; /* 24px */
  --text-3xl: 1.875rem; /* 30px */
  --text-4xl: 2.25rem; /* 36px */
  --text-5xl: 3rem; /* 48px */

  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* === BORDER RADIUS === */
  --radius-sm: 0.375rem; /* 6px */
  --radius-md: 0.5rem; /* 8px */
  --radius-lg: 0.75rem; /* 12px */
  --radius-xl: 1rem; /* 16px */
  --radius-2xl: 1.5rem; /* 24px */
  --radius-full: 9999px;

  /* === SHADOWS === */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:
    0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Premium Glow Effects */
  --shadow-glow-cyan: 0 0 20px rgba(102, 252, 241, 0.3);
  --shadow-glow-cyan-lg: 0 0 40px rgba(102, 252, 241, 0.4);
  --shadow-glow-magenta: 0 0 20px rgba(138, 126, 164, 0.3);

  /* === TRANSITIONS === */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* === GLASSMORPHISM === */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(12px);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);

  /* === Z-INDEX SCALE === */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-notification: 1080;
}

/* === UTILITY CLASSES === */

/* Glassmorphism */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.glass-hover:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

/* Smooth Animations */
.animate-fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

.animate-slide-up {
  animation: slideUp 0.3s ease-out;
}

.animate-scale-in {
  animation: scaleIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Hover Effects */
.hover-lift {
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Premium Glow Effects */
.glow-cyan {
  box-shadow:
    0 0 20px rgba(102, 252, 241, 0.3),
    0 0 40px rgba(102, 252, 241, 0.1);
}

.glow-cyan-lg {
  box-shadow:
    0 0 30px rgba(102, 252, 241, 0.5),
    0 0 60px rgba(102, 252, 241, 0.2);
}

/* Smooth Scroll */
.smooth-scroll {
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* Loading States */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  animation: shimmer 2s infinite linear;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.05) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.05) 100%
  );
  background-size: 1000px 100%;
}

/* Pulse Glow */
@keyframes pulse-glow {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 10px rgba(102, 252, 241, 0.3);
  }
  50% {
    opacity: 0.8;
    box-shadow: 0 0 20px rgba(102, 252, 241, 0.6);
  }
}

.pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

/* Focus States */
.focus-ring {
  outline: 2px solid transparent;
  outline-offset: 2px;
  transition: outline-color var(--transition-fast);
}

.focus-ring:focus-visible {
  outline-color: rgb(var(--kodo-cyan));
  outline-width: 2px;
}