@import "tailwindcss";
@config "../tailwind.config.js";

@layer utilities {
  @keyframes slide-in {
    from {
      transform: translateX(100%);
      opacity: 0;
    }
    to {
      transform: translateX(0);
      opacity: 1;
    }
  }

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

  @keyframes bob-boat {
    0%, 100% {
      transform: translateY(-3px);
    }
    50% {
      transform: translateY(3px);
    }
  }

  .animate-bob-boat {
    animation: bob-boat 2s ease-in-out infinite;
  }

  @keyframes pulse-glow {
    0%, 100% {
      opacity: 0.6;
      transform: scale(1);
    }
    50% {
      opacity: 1;
      transform: scale(1.05);
    }
  }

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

  @keyframes rotate-head {
    0%, 100% {
      transform: rotate(-10deg);
    }
    50% {
      transform: rotate(10deg);
    }
  }

  .animate-rotate-head {
    animation: rotate-head 3s ease-in-out infinite;
  }

  @keyframes spin-y {
    0% {
      transform: rotateY(0deg);
    }
    100% {
      transform: rotateY(360deg);
    }
  }

  .animate-spin-y {
    animation: spin-y 2s linear infinite;
  }
}

/* ========================================
 * DESIGN TOKENS - CSS Custom Properties
 * ======================================== */

:root {
  /* ========================================
   * BRAND COLORS (RGB format for alpha support)
   * ======================================== */
  --color-brand-50: 239 246 255;   /* #eff6ff */
  --color-brand-100: 219 234 254;  /* #dbeafe */
  --color-brand-200: 191 219 254;  /* #bfdbfe */
  --color-brand-300: 147 197 253;  /* #93c5fd */
  --color-brand-400: 96 165 250;   /* #60a5fa */
  --color-brand-500: 59 130 246;   /* #3b82f6 - Primary */
  --color-brand-600: 37 99 235;    /* #2563eb */
  --color-brand-700: 29 78 216;    /* #1d4ed8 */
  --color-brand-800: 30 64 175;    /* #1e40af */
  --color-brand-900: 30 58 138;    /* #1e3a8a */
  --color-brand-950: 23 37 84;     /* #172554 */

  /* ========================================
   * SEMANTIC SURFACE COLORS - Dark Mode Default
   * ======================================== */
  --color-bg-base: 15 23 42;           /* slate-900 */
  --color-bg-subtle: 30 41 59;         /* slate-800 */
  --color-bg-muted: 51 65 85;          /* slate-700 */
  --color-bg-elevated: 30 41 59;       /* slate-800 */
  --color-bg-overlay: 2 6 23;          /* slate-950 */

  /* ========================================
   * BORDER COLORS
   * ======================================== */
  --color-border-default: 51 65 85;    /* slate-700 */
  --color-border-muted: 30 41 59;      /* slate-800 */
  --color-border-strong: 71 85 105;    /* slate-600 */

  /* ========================================
   * TEXT COLORS
   * ======================================== */
  --color-text-primary: 248 250 252;   /* slate-50 */
  --color-text-secondary: 203 213 225; /* slate-300 */
  --color-text-muted: 148 163 184;     /* slate-400 */
  --color-text-inverted: 15 23 42;     /* slate-900 */

  /* ========================================
   * STATE COLORS
   * ======================================== */
  --color-success: 34 197 94;          /* green-500 */
  --color-success-muted: 20 83 45;     /* green-900 */
  --color-warning: 234 179 8;          /* yellow-500 */
  --color-warning-muted: 113 63 18;    /* yellow-900 */
  --color-error: 239 68 68;            /* red-500 */
  --color-error-muted: 127 29 29;      /* red-900 */
  --color-info: 59 130 246;            /* blue-500 */
  --color-info-muted: 30 58 138;       /* blue-900 */

  /* ========================================
   * TYPOGRAPHY
   * ======================================== */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Type Scale (rem) */
  --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 */

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

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

  /* ========================================
   * SPACING & LAYOUT
   * ======================================== */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */

  /* Container */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;

  /* Page Gutters */
  --page-gutter: var(--space-6);
  --page-gutter-lg: var(--space-8);

  /* ========================================
   * EFFECTS
   * ======================================== */
  /* Border Radius */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-md: 0.375rem;  /* 6px */
  --radius-lg: 0.5rem;    /* 8px */
  --radius-xl: 0.75rem;   /* 12px */
  --radius-2xl: 1rem;     /* 16px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms;
  --transition-normal: 200ms;
  --transition-slow: 300ms;
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);

  /* Focus Ring */
  --ring-width: 2px;
  --ring-offset: 2px;
  --ring-color: var(--color-brand-500);

  /* ========================================
   * LEGACY ROOT STYLES (preserved)
   * ======================================== */
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #0f172a;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
 * LIGHT MODE OVERRIDES
 * ======================================== */
.light {
  /* Surfaces */
  --color-bg-base: 248 250 252;        /* slate-50 */
  --color-bg-subtle: 241 245 249;      /* slate-100 */
  --color-bg-muted: 226 232 240;       /* slate-200 */
  --color-bg-elevated: 255 255 255;    /* white */
  --color-bg-overlay: 15 23 42;        /* slate-900 */

  /* Borders */
  --color-border-default: 226 232 240; /* slate-200 */
  --color-border-muted: 241 245 249;   /* slate-100 */
  --color-border-strong: 203 213 225;  /* slate-300 */

  /* Text */
  --color-text-primary: 15 23 42;      /* slate-900 */
  --color-text-secondary: 71 85 105;   /* slate-600 */
  --color-text-muted: 148 163 184;     /* slate-400 */
  --color-text-inverted: 255 255 255;  /* white */

  /* States - Light mode muted variants */
  --color-success-muted: 220 252 231;  /* green-100 */
  --color-warning-muted: 254 249 195;  /* yellow-100 */
  --color-error-muted: 254 226 226;    /* red-100 */
  --color-info-muted: 219 234 254;     /* blue-100 */
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

#root {
  min-height: 100vh;
}

/* Custom Scrollbar Styles for Sidebar Navigation */
.overflow-y-auto::-webkit-scrollbar {
  width: 8px;
}

.overflow-y-auto::-webkit-scrollbar-track {
  background: transparent;
}

.overflow-y-auto::-webkit-scrollbar-thumb {
  background-color: rgba(148, 163, 184, 0.3);
  border-radius: 4px;
}

.dark .overflow-y-auto::-webkit-scrollbar-thumb {
  background-color: rgba(148, 163, 184, 0.5);
}

.overflow-y-auto::-webkit-scrollbar-thumb:hover {
  background-color: rgba(148, 163, 184, 0.6);
}

/* Firefox support */
.overflow-y-auto {
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 163, 184, 0.5) transparent;
}

.dark .overflow-y-auto {
  scrollbar-color: rgba(148, 163, 184, 0.5) transparent;
}
