/* ==========================================================================
   DealerSlate - Design System
   Core variables, reset, and typography
   ========================================================================== */

:root {
  /* ===== Colors - Semantic naming ===== */
  --color-primary: #1e40af;
  --color-primary-hover: #1e3a8a;
  --color-primary-light: #3b82f6;
  --color-primary-bg: #eff6ff;

  --color-success: #059669;
  --color-success-hover: #047857;
  --color-success-bg: #ecfdf5;

  --color-warning: #d97706;
  --color-warning-hover: #b45309;
  --color-warning-bg: #fffbeb;

  --color-danger: #dc2626;
  --color-danger-hover: #b91c1c;
  --color-danger-bg: #fef2f2;

  --color-info: #0891b2;
  --color-info-hover: #0e7490;
  --color-info-bg: #ecfeff;

  /* ===== Extended Status Colors ===== */
  /* Purple - Used for Open RO, service-related */
  --color-purple: #9c27b0;
  --color-purple-hover: #7b1fa2;
  --color-purple-bg: #f3e5f5;
  --color-purple-bg-hover: #e1bee7;
  --color-purple-text: #6a1b9a;

  /* Cyan - Used for RDR'd, completed items */
  --color-cyan: #12a5af;
  --color-cyan-hover: #0e8a93;
  --color-cyan-bg: #e0f7fa;
  --color-cyan-bg-hover: #b2ebf2;
  --color-cyan-text: #00838f;

  /* Brown - Used for Has Deal */
  --color-brown: #795548;
  --color-brown-hover: #5d4037;
  --color-brown-bg: #efebe9;
  --color-brown-bg-hover: #d7ccc8;
  --color-brown-text: #4e342e;

  /* Blue-Gray - Used for Has Notes, informational */
  --color-blue-gray: #607d8b;
  --color-blue-gray-hover: #546e7a;
  --color-blue-gray-bg: #eceff1;
  --color-blue-gray-bg-hover: #cfd8dc;
  --color-blue-gray-text: #37474f;

  /* Gold - Used for positive comparison (we're better than competitor) */
  --color-gold: #d4af37;
  --color-gold-hover: #b8960f;
  --color-gold-bg: #fdf8e1;
  --color-gold-bg-hover: #f9f0c3;
  --color-gold-text: #8b7500;

  /* Extended bg-hover for row highlighting */
  --color-success-bg-hover: #d1fae5;
  --color-warning-bg-hover: #fef3c7;
  --color-danger-bg-hover: #fee2e2;
  --color-info-bg-hover: #cffafe;

  /* Dark variants for text on light backgrounds */
  --color-success-dark: #047857;
  --color-warning-dark: #b45309;
  --color-danger-dark: #b91c1c;
  --color-info-dark: #0e7490;

  /* Border variants for modal headers and alerts */
  --color-success-border: #a7f3d0;
  --color-warning-border: #fde68a;
  --color-danger-border: #fecaca;
  --color-info-border: #a5f3fc;

  /* ===== Neutrals ===== */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #ffffff;
  --color-border: #e2e8f0;
  --color-border-focus: #3b82f6;
  --color-surface: #ffffff;
  --color-background: #f8fafc;

  /* ===== Overlays ===== */
  --color-overlay-light: rgba(255, 255, 255, 0.7);
  --color-overlay-dark: rgba(0, 0, 0, 0.5);
  --color-overlay-subtle: rgba(255, 255, 255, 0.1);

  /* ===== Print-specific ===== */
  --color-print-border: #000000;

  /* ===== Grays (for neutral backgrounds/surfaces) ===== */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;

  /* ===== Border Variants ===== */
  --color-border-light: #f1f5f9;

  /* ===== Surface Variants ===== */
  --color-surface-secondary: #f8fafc;
  --color-surface-hover: #f1f5f9;

  /* ===== Status light variants (for success/info badges with light colors) ===== */
  --color-success-light: #86efac;
  --color-primary-light-bg: #dbeafe;
  --color-warning-300: #fcd34d;
  --color-warning-800: #92400e;

  /* ===== Semantic text colors ===== */
  --color-text: var(--color-text-primary);

  /* ===== Orange (for swap/pending highlights) ===== */
  --color-orange: #f97316;
  --color-orange-hover: #ea580c;
  --color-orange-bg: #fff7ed;
  --color-orange-text: #c2410c;

  /* ===== Spacing Scale (8px base) ===== */
  --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 */

  /* ===== Typography ===== */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
  --font-mono: 'SF Mono', 'Consolas', monospace;

  --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 */

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  --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-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 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.05);

  /* ===== Transitions ===== */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* ===== Z-Index Scale ===== */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ===== Focus Ring (accessibility) ===== */
  --focus-ring: 0 0 0 3px rgba(59, 130, 246, 0.4);
}

/* ===== CSS Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

/* ===== Typography Defaults ===== */
h1 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
}

h2 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
}

h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
}

h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  line-height: var(--leading-tight);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== Focus Visible (accessibility) ===== */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ===== Selection ===== */
::selection {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-background);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ==========================================================================
   Utility Classes
   Reusable single-purpose classes following spacing scale
   ========================================================================== */

/* ===== Margin Utilities ===== */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: var(--space-1); }
.ml-2 { margin-left: var(--space-2); }
.ml-3 { margin-left: var(--space-3); }
.ml-4 { margin-left: var(--space-4); }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: var(--space-1); }
.mr-2 { margin-right: var(--space-2); }
.mr-3 { margin-right: var(--space-3); }
.mr-4 { margin-right: var(--space-4); }
.mr-auto { margin-right: auto; }

.mx-auto { margin-left: auto; margin-right: auto; }

/* ===== Padding Utilities ===== */
.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-1); }
.pt-2 { padding-top: var(--space-2); }
.pt-3 { padding-top: var(--space-3); }
.pt-4 { padding-top: var(--space-4); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-1); }
.pb-2 { padding-bottom: var(--space-2); }
.pb-3 { padding-bottom: var(--space-3); }
.pb-4 { padding-bottom: var(--space-4); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-3 { padding-left: var(--space-3); padding-right: var(--space-3); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

/* ===== Display Utilities ===== */
.hidden { display: none !important; }
.is-hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* ===== Flexbox Utilities ===== */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-grow { flex-grow: 1; }
.flex-grow-0 { flex-grow: 0; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }

.self-start { align-self: flex-start; }
.self-center { align-self: center; }
.self-end { align-self: flex-end; }
.self-stretch { align-self: stretch; }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

/* ===== Text Utilities ===== */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.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); }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-info { color: var(--color-info); }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre-wrap { white-space: pre-wrap; }

/* ===== Width/Height Utilities ===== */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-10 { width: 2.5rem; }  /* 40px */
.w-12 { width: 3rem; }    /* 48px */
.w-14 { width: 3.5rem; }  /* 56px - quantity inputs */
.w-16 { width: 4rem; }    /* 64px */
.w-40 { width: 10rem; }   /* 160px */
.w-48 { width: 12rem; }   /* 192px */
.w-56 { width: 14rem; }   /* 224px */
.w-64 { width: 16rem; }   /* 256px - form inputs */
.h-full { height: 100%; }
.h-auto { height: auto; }
.min-w-0 { min-width: 0; }
.min-w-48 { min-width: 12rem; }  /* 192px */
.max-w-xs { max-width: 200px; }
.max-w-sm { max-width: 280px; }
.max-w-md { max-width: 400px; }
.max-w-lg { max-width: 600px; }
.max-w-xl { max-width: 800px; }
.max-w-2xl { max-width: 1000px; }
.max-w-full { max-width: 100%; }
.max-h-48 { max-height: 12rem; }  /* 192px */
.max-h-52 { max-height: 13rem; }  /* 208px */
.max-h-64 { max-height: 16rem; }  /* 256px */
.max-h-80 { max-height: 20rem; }  /* 320px */
.max-h-96 { max-height: 24rem; }  /* 384px */

/* ===== Overflow Utilities ===== */
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }
.overflow-scroll { overflow: scroll; }

/* ===== Color Text Utilities (extended) ===== */
.text-color-primary { color: var(--color-primary); }
.text-color-gold { color: var(--color-gold); }

/* ===== Border Utilities ===== */
.border { border: 1px solid var(--color-border); }
.border-0 { border: 0; }
.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* ===== Background Utilities ===== */
.bg-surface { background-color: var(--color-surface); }
.bg-background { background-color: var(--color-background); }
.bg-primary-light { background-color: var(--color-primary-bg); }
.bg-success-light { background-color: var(--color-success-bg); }
.bg-warning-light { background-color: var(--color-warning-bg); }
.bg-danger-light { background-color: var(--color-danger-bg); }

/* ===== Cursor Utilities ===== */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

/* ===== Visibility Utilities ===== */
.visible { visibility: visible; }
.invisible { visibility: hidden; }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* ===== Positioning ===== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* ===== Overflow ===== */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* ===== Misc ===== */
.mono { font-family: var(--font-mono); }
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}