/**
 * LICITAR - Sistema de Design
 * Portal Executivo de Licitações Públicas
 * Design System: Tokens, Variables, Base Styles
 */

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

  /* Primary - Azul Institucional */
  --color-primary-900: #0A2540;
  --color-primary-800: #0D3A5C;
  --color-primary-700: #104E78;
  --color-primary-600: #1366A0;
  --color-primary-500: #1E88E5;
  --color-primary-400: #42A5F5;
  --color-primary-300: #64B5F6;
  --color-primary-200: #90CAF9;
  --color-primary-100: #BBDEFB;
  --color-primary-50: #E3F2FD;

  /* Success - Verde (Oportunidades) */
  --color-success-900: #1B5E20;
  --color-success-700: #388E3C;
  --color-success-500: #4CAF50;
  --color-success-300: #81C784;
  --color-success-100: #C8E6C9;
  --color-success-50: #E8F5E9;

  /* Warning - Laranja */
  --color-warning-700: #E65100;
  --color-warning-500: #FF9800;
  --color-warning-300: #FFB74D;
  --color-warning-100: #FFE0B2;

  /* Danger - Vermelho (Alertas) */
  --color-danger-900: #B71C1C;
  --color-danger-700: #D32F2F;
  --color-danger-500: #F44336;
  --color-danger-300: #E57373;
  --color-danger-100: #FFCDD2;
  --color-danger-50: #FFEBEE;

  /* Neutral - Cinza Moderno */
  --color-neutral-950: #0A0D12;
  --color-neutral-900: #1A1D24;
  --color-neutral-800: #2C3038;
  --color-neutral-700: #3F454D;
  --color-neutral-600: #555C66;
  --color-neutral-500: #6B737F;
  --color-neutral-400: #8B92A0;
  --color-neutral-300: #ADB3BF;
  --color-neutral-200: #CDD2DB;
  --color-neutral-100: #E4E7EC;
  --color-neutral-50: #F3F5F7;
  --color-neutral-25: #FAFBFC;

  /* Surface Colors */
  --color-surface-primary: #FFFFFF;
  --color-surface-secondary: var(--color-neutral-25);
  --color-surface-tertiary: var(--color-neutral-50);
  --color-surface-elevated: #FFFFFF;
  --color-surface-overlay: rgba(10, 13, 18, 0.75);

  /* Text Colors */
  --color-text-primary: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-tertiary: var(--color-neutral-500);
  --color-text-disabled: var(--color-neutral-400);
  --color-text-inverse: #FFFFFF;
  --color-text-link: var(--color-primary-600);
  --color-text-link-hover: var(--color-primary-700);

  /* Border Colors */
  --color-border-primary: var(--color-neutral-200);
  --color-border-secondary: var(--color-neutral-100);
  --color-border-focus: var(--color-primary-500);
  --color-border-error: var(--color-danger-500);

  /* ===== TYPOGRAPHY ===== */

  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-family-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;

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

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

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

  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;

  /* ===== SPACING ===== */

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

  /* ===== SIZING ===== */

  --size-header-height: 72px;
  --size-sidebar-width: 280px;
  --size-sidebar-collapsed: 64px;
  --size-container-max: 1440px;

  /* ===== BORDERS ===== */

  --border-radius-none: 0;
  --border-radius-sm: 0.25rem;   /* 4px */
  --border-radius-md: 0.5rem;    /* 8px */
  --border-radius-lg: 0.75rem;   /* 12px */
  --border-radius-xl: 1rem;      /* 16px */
  --border-radius-2xl: 1.5rem;   /* 24px */
  --border-radius-full: 9999px;

  --border-width-thin: 1px;
  --border-width-medium: 2px;
  --border-width-thick: 4px;

  /* ===== SHADOWS ===== */

  --shadow-xs: 0 1px 2px 0 rgba(10, 13, 18, 0.05);
  --shadow-sm: 0 2px 4px 0 rgba(10, 13, 18, 0.06), 0 1px 2px 0 rgba(10, 13, 18, 0.04);
  --shadow-md: 0 4px 8px -2px rgba(10, 13, 18, 0.08), 0 2px 4px -1px rgba(10, 13, 18, 0.06);
  --shadow-lg: 0 12px 24px -4px rgba(10, 13, 18, 0.1), 0 4px 8px -2px rgba(10, 13, 18, 0.08);
  --shadow-xl: 0 20px 40px -8px rgba(10, 13, 18, 0.12), 0 8px 16px -4px rgba(10, 13, 18, 0.1);
  --shadow-2xl: 0 32px 64px -12px rgba(10, 13, 18, 0.16), 0 12px 24px -4px rgba(10, 13, 18, 0.12);
  --shadow-focus: 0 0 0 3px rgba(30, 136, 229, 0.2);
  --shadow-focus-danger: 0 0 0 3px rgba(244, 67, 54, 0.2);

  /* ===== TRANSITIONS ===== */

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* ===== Z-INDEX ===== */

  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-tooltip: 1500;
}

/* ===== GLOBAL RESET ===== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-surface-secondary);
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY UTILITIES ===== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-normal);
}

a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text-link-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}

/* ===== LAYOUT UTILITIES ===== */

.container {
  width: 100%;
  max-width: var(--size-container-max);
  margin: 0 auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-fluid {
  width: 100%;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ===== SPACING UTILITIES ===== */

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.ml-4 { margin-left: var(--space-4); }
.mr-4 { margin-right: var(--space-4); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }

/* ===== TEXT UTILITIES ===== */

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

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

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-success { color: var(--color-success-700); }
.text-warning { color: var(--color-warning-700); }
.text-danger { color: var(--color-danger-700); }

.text-center { text-align: center; }
.text-right { text-align: right; }

/* ===== RESPONSIVE BREAKPOINTS ===== */

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .md\:flex { display: flex; }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1440px) {
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ===== VISIBILITY UTILITIES ===== */

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}