/* Design System Theme - Light Corporate Premium with IFS Purple Branding */

:root {
  /* === COLOR PALETTE === */

  /* Primary - IFS Purple */
  --color-primary: #7B2CBF;
  --color-primary-light: #9D4EDD;
  --color-primary-lighter: #C77DFF;
  --color-primary-dark: #5A189A;
  --color-primary-darker: #3C096C;

  /* Accent - Energy Blue */
  --color-accent: #0077B6;
  --color-accent-light: #00B4D8;
  --color-accent-lighter: #90E0EF;
  --color-accent-dark: #03045E;

  /* Neutrals - Clean Grays */
  --color-white: #FFFFFF;
  --color-gray-50: #F8F9FA;
  --color-gray-100: #F1F3F5;
  --color-gray-200: #E9ECEF;
  --color-gray-300: #DEE2E6;
  --color-gray-400: #CED4DA;
  --color-gray-500: #ADB5BD;
  --color-gray-600: #868E96;
  --color-gray-700: #495057;
  --color-gray-800: #343A40;
  --color-gray-900: #212529;
  --color-black: #000000;

  /* Semantic Colors - Success (Green Tones) */
  --color-success-lighter: #95D5B2;
  --color-success-light: #52B788;
  --color-success: #2D6A4F;
  --color-success-dark: #1B4332;
  --color-success-darker: #081C15;

  /* Semantic Colors - Warning (Orange Tones) */
  --color-warning-lighter: #FFDD99;
  --color-warning-light: #FFB703;
  --color-warning: #FB8500;
  --color-warning-dark: #C87400;
  --color-warning-darker: #8B5000;

  /* Semantic Colors - Error (Red Tones) */
  --color-error-lighter: #F48C7F;
  --color-error-light: #E85D04;
  --color-error: #DC2F02;
  --color-error-dark: #9D0208;
  --color-error-darker: #6A040F;

  /* Semantic Colors - Info (Blue Tones) */
  --color-info-lighter: #90E0EF;
  --color-info-light: #00B4D8;
  --color-info: #0077B6;
  --color-info-dark: #03045E;
  --color-info-darker: #023047;

  /* === RGB COLOR EQUIVALENTS === */
  /* For use with opacity: rgba(var(--color-primary-rgb), 0.5) */

  /* Primary RGB */
  --color-primary-rgb: 123, 44, 191;
  --color-primary-light-rgb: 157, 78, 221;
  --color-primary-lighter-rgb: 199, 125, 255;
  --color-primary-dark-rgb: 90, 24, 154;
  --color-primary-darker-rgb: 60, 9, 108;

  /* Accent RGB */
  --color-accent-rgb: 0, 119, 182;
  --color-accent-light-rgb: 0, 180, 216;
  --color-accent-lighter-rgb: 144, 224, 239;
  --color-accent-dark-rgb: 3, 4, 94;

  /* Neutrals RGB */
  --color-white-rgb: 255, 255, 255;
  --color-gray-50-rgb: 248, 249, 250;
  --color-gray-100-rgb: 241, 243, 245;
  --color-gray-200-rgb: 233, 236, 239;
  --color-gray-300-rgb: 222, 226, 230;
  --color-gray-400-rgb: 206, 212, 218;
  --color-gray-500-rgb: 173, 181, 189;
  --color-gray-600-rgb: 134, 142, 150;
  --color-gray-700-rgb: 73, 80, 87;
  --color-gray-800-rgb: 52, 58, 64;
  --color-gray-900-rgb: 33, 37, 41;
  --color-black-rgb: 0, 0, 0;

  /* Semantic RGB */
  --color-success-rgb: 45, 106, 79;
  --color-success-light-rgb: 82, 183, 136;
  --color-success-lighter-rgb: 149, 213, 178;
  --color-success-dark-rgb: 27, 67, 50;
  --color-success-darker-rgb: 8, 28, 21;

  --color-warning-rgb: 251, 133, 0;
  --color-warning-light-rgb: 255, 183, 3;
  --color-warning-lighter-rgb: 255, 221, 153;
  --color-warning-dark-rgb: 200, 116, 0;
  --color-warning-darker-rgb: 139, 80, 0;

  --color-error-rgb: 220, 47, 2;
  --color-error-light-rgb: 232, 93, 4;
  --color-error-lighter-rgb: 244, 140, 127;
  --color-error-dark-rgb: 157, 2, 8;
  --color-error-darker-rgb: 106, 4, 15;

  --color-info-rgb: 0, 119, 182;
  --color-info-light-rgb: 0, 180, 216;
  --color-info-lighter-rgb: 144, 224, 239;
  --color-info-dark-rgb: 3, 4, 94;
  --color-info-darker-rgb: 2, 48, 71;

  /* === PHASE-SPECIFIC COLORS === */
  /* Multi-Phase Transformation System Colors */

  /* Phase 0: Data Foundation (Gray) */
  --phase-0-color: #95A5A6;
  --phase-0-color-rgb: 149, 165, 166;

  /* Phase 1: Field Operations Optimization (Blue) */
  --phase-1-color: #3498DB;
  --phase-1-color-rgb: 52, 152, 219;

  /* Phase 2: Strategic Optimization (Purple) */
  --phase-2-color: #9B59B6;
  --phase-2-color-rgb: 155, 89, 182;

  /* Phase 3: Advanced AI Capabilities (Red) */
  --phase-3-color: #E74C3C;
  --phase-3-color-rgb: 231, 76, 60;

  /* Phase 4: Continuous Excellence (Green) */
  --phase-4-color: #27AE60;
  --phase-4-color-rgb: 39, 174, 96;

  /* Backgrounds */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8F9FA;
  --bg-tertiary: #F1F3F5;
  --bg-card: #FFFFFF;
  --bg-hover: #F8F9FA;
  --bg-active: #E9ECEF;
  --bg-overlay: rgba(0, 0, 0, 0.5);

  /* Text Colors */
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-tertiary: #868E96;
  --text-inverse: #FFFFFF;
  --text-link: #7B2CBF;
  --text-link-hover: #5A189A;

  /* Borders */
  --border-color: #DEE2E6;
  --border-color-light: #E9ECEF;
  --border-color-dark: #CED4DA;
  --border-width: 1px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 9999px;

  /* === SHADOWS === */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-purple: 0 10px 30px -5px rgba(123, 44, 191, 0.15);

  /* === SPACING === */
  --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 */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* === TYPOGRAPHY === */

  /* Font Families */
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                  "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Monaco, "Cascadia Code",
               "Roboto Mono", Consolas, "Courier New", 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 */
  --text-6xl: 3.75rem;    /* 60px */

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

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

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

  /* === Z-INDEX === */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;

  /* === LAYOUT === */
  --header-height: 80px;
  --sidebar-width: 280px;
  --sidebar-width-collapsed: 60px;
  --container-max-width: 1440px;
  --section-max-width: 1200px;

  /* === BREAKPOINTS === */
  --breakpoint-mobile: 768px;
  --breakpoint-tablet: 1024px;
  --breakpoint-desktop: 1440px;

  /* === COMPONENT TOKENS === */

  /* Buttons */
  --button-height-xs: 28px;
  --button-height-sm: 36px;
  --button-height-base: 44px;
  --button-height-lg: 52px;
  --button-height-xl: 60px;
  --button-padding-x-xs: var(--space-3);
  --button-padding-x-sm: var(--space-4);
  --button-padding-x-base: var(--space-6);
  --button-padding-x-lg: var(--space-8);
  --button-padding-x-xl: var(--space-10);
  --button-min-width: 120px;
  --button-gap: var(--space-2);

  /* Modals */
  --modal-width-sm: 400px;
  --modal-width-md: 600px;
  --modal-width-lg: 800px;
  --modal-width-xl: 1000px;
  --modal-padding: var(--space-8);
  --modal-header-height: 60px;
  --modal-footer-height: 80px;

  /* Cards */
  --card-padding-sm: var(--space-4);
  --card-padding-base: var(--space-6);
  --card-padding-lg: var(--space-8);
  --card-gap: var(--space-4);
  --card-border-radius: var(--border-radius-lg);
  --card-shadow: var(--shadow-md);
  --card-hover-shadow: var(--shadow-lg);

  /* Forms */
  --input-height-sm: 36px;
  --input-height-base: 44px;
  --input-height-lg: 52px;
  --input-padding-x: var(--space-4);
  --input-padding-y: var(--space-3);
  --input-border-radius: var(--border-radius-md);
  --input-focus-ring: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
  --form-gap: var(--space-4);
  --label-margin-bottom: var(--space-2);

  /* Icons */
  --icon-size-xs: 12px;
  --icon-size-sm: 16px;
  --icon-size-base: 20px;
  --icon-size-lg: 24px;
  --icon-size-xl: 32px;
  --icon-size-2xl: 48px;

  /* Charts */
  --chart-height-sm: 300px;
  --chart-height-base: 400px;
  --chart-height-lg: 500px;
  --chart-height-xl: 600px;
  --chart-padding: var(--space-4);

  /* === ANIMATION === */
  --animation-fade-in: fadeIn var(--transition-base);
  --animation-slide-up: slideUp var(--transition-base);
  --animation-slide-down: slideDown var(--transition-base);
}

/* === KEYFRAME ANIMATIONS === */

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-inverse { color: var(--text-inverse); }
.text-purple { color: var(--color-primary); }
.text-blue { color: var(--color-accent); }

.bg-white { background-color: var(--bg-primary); }
.bg-gray { background-color: var(--bg-secondary); }
.bg-purple { background-color: var(--color-primary); }
.bg-blue { background-color: var(--color-accent); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* ================================================================
   DARK MODE THEME OVERRIDES
   ================================================================ */

/* Automatic dark mode via system preference */
@media (prefers-color-scheme: dark) {
  :root {
    /* Primary - Lighter for dark backgrounds */
    --color-primary: #9D4EDD;
    --color-primary-light: #C77DFF;
    --color-primary-lighter: #E0AAFF;
    --color-primary-dark: #7B2CBF;
    --color-primary-darker: #5A189A;

    /* Accent - Brighter for dark backgrounds */
    --color-accent: #00B4D8;
    --color-accent-light: #48CAE4;
    --color-accent-lighter: #90E0EF;
    --color-accent-dark: #0077B6;

    /* Neutrals - Inverted for dark theme */
    --color-white: #0F172A;           /* Dark slate */
    --color-gray-50: #1E293B;         /* slate-800 */
    --color-gray-100: #334155;        /* slate-700 */
    --color-gray-200: #475569;        /* slate-600 */
    --color-gray-300: #64748B;        /* slate-500 */
    --color-gray-400: #94A3B8;        /* slate-400 */
    --color-gray-500: #CBD5E1;        /* slate-300 */
    --color-gray-600: #E2E8F0;        /* slate-200 */
    --color-gray-700: #F1F5F9;        /* slate-100 */
    --color-gray-800: #F8FAFC;        /* slate-50 */
    --color-gray-900: #FFFFFF;
    --color-black: #FFFFFF;

    /* Success - Lighter for dark mode */
    --color-success-lighter: #081C15;
    --color-success-light: #1B4332;
    --color-success: #52B788;
    --color-success-dark: #95D5B2;
    --color-success-darker: #D8F3DC;

    /* Warning - Lighter for dark mode */
    --color-warning-lighter: #8B5000;
    --color-warning-light: #C87400;
    --color-warning: #FBBF24;
    --color-warning-dark: #FFD97D;
    --color-warning-darker: #FFEDD5;

    /* Error - Lighter for dark mode */
    --color-error-lighter: #6A040F;
    --color-error-light: #9D0208;
    --color-error: #F87171;
    --color-error-dark: #FCA5A5;
    --color-error-darker: #FEE2E2;

    /* Info - Lighter for dark mode */
    --color-info-lighter: #023047;
    --color-info-light: #03045E;
    --color-info: #60A5FA;
    --color-info-dark: #93C5FD;
    --color-info-darker: #DBEAFE;

    /* Backgrounds - Dark theme */
    --bg-primary: #0F172A;            /* slate-900 */
    --bg-secondary: #1E293B;          /* slate-800 */
    --bg-tertiary: #334155;           /* slate-700 */
    --bg-card: #1E293B;               /* slate-800 */
    --bg-hover: #334155;              /* slate-700 */
    --bg-active: #475569;             /* slate-600 */
    --bg-overlay: rgba(0, 0, 0, 0.8);

    /* Text Colors - Light text on dark backgrounds */
    --text-primary: #F1F5F9;          /* slate-100 */
    --text-secondary: #CBD5E1;        /* slate-300 */
    --text-tertiary: #94A3B8;         /* slate-400 */
    --text-inverse: #0F172A;          /* Dark for contrast */
    --text-link: #9D4EDD;
    --text-link-hover: #C77DFF;

    /* Borders - Lighter for dark theme */
    --border-color: #334155;          /* slate-700 */
    --border-color-light: #475569;    /* slate-600 */
    --border-color-dark: #1E293B;     /* slate-800 */

    /* Shadows - Darker and more pronounced */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px -1px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.7);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    --shadow-purple: 0 10px 30px -5px rgba(157, 78, 221, 0.3);
  }
}

/* Manual dark mode toggle support */
body[data-theme="dark"] {
  /* Primary */
  --color-primary: #9D4EDD;
  --color-primary-light: #C77DFF;
  --color-primary-lighter: #E0AAFF;
  --color-primary-dark: #7B2CBF;
  --color-primary-darker: #5A189A;

  /* Accent */
  --color-accent: #00B4D8;
  --color-accent-light: #48CAE4;
  --color-accent-lighter: #90E0EF;
  --color-accent-dark: #0077B6;

  /* Neutrals */
  --color-white: #0F172A;
  --color-gray-50: #1E293B;
  --color-gray-100: #334155;
  --color-gray-200: #475569;
  --color-gray-300: #64748B;
  --color-gray-400: #94A3B8;
  --color-gray-500: #CBD5E1;
  --color-gray-600: #E2E8F0;
  --color-gray-700: #F1F5F9;
  --color-gray-800: #F8FAFC;
  --color-gray-900: #FFFFFF;
  --color-black: #FFFFFF;

  /* Success */
  --color-success-lighter: #081C15;
  --color-success-light: #1B4332;
  --color-success: #52B788;
  --color-success-dark: #95D5B2;
  --color-success-darker: #D8F3DC;

  /* Warning */
  --color-warning-lighter: #8B5000;
  --color-warning-light: #C87400;
  --color-warning: #FBBF24;
  --color-warning-dark: #FFD97D;
  --color-warning-darker: #FFEDD5;

  /* Error */
  --color-error-lighter: #6A040F;
  --color-error-light: #9D0208;
  --color-error: #F87171;
  --color-error-dark: #FCA5A5;
  --color-error-darker: #FEE2E2;

  /* Info */
  --color-info-lighter: #023047;
  --color-info-light: #03045E;
  --color-info: #60A5FA;
  --color-info-dark: #93C5FD;
  --color-info-darker: #DBEAFE;

  /* Backgrounds */
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --bg-card: #1E293B;
  --bg-hover: #334155;
  --bg-active: #475569;
  --bg-overlay: rgba(0, 0, 0, 0.8);

  /* Text Colors */
  --text-primary: #F1F5F9;
  --text-secondary: #CBD5E1;
  --text-tertiary: #94A3B8;
  --text-inverse: #0F172A;
  --text-link: #9D4EDD;
  --text-link-hover: #C77DFF;

  /* Borders */
  --border-color: #334155;
  --border-color-light: #475569;
  --border-color-dark: #1E293B;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4), 0 1px 2px -1px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.7);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  --shadow-purple: 0 10px 30px -5px rgba(157, 78, 221, 0.3);
}