/* ==========================================================================
   Facility Service Company - Shared Stylesheet
   Global styles, typography, colors, layout utilities
   ========================================================================== */


/* ==========================================================================
   CSS Reset & Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #2D3748;
  background-color: #FFFFFF;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */

:root {
  /* Colors */
  --color-navy: #1E3A8A;
  --color-charcoal: #2D3748;
  --color-charcoal-dark: #1A202C;
  --color-white: #FFFFFF;
  --color-light-gray: #F7FAFC;
  --color-medium-gray: #E2E8F0;
  --color-dark-gray: #4A5568;
  --color-success: #2F855A;
  
  /* Gradients */
  --gradient-navy-charcoal: linear-gradient(135deg, #1E3A8A 0%, #2D3748 100%);
  --gradient-charcoal-tonal: linear-gradient(135deg, #2D3748 0%, #1A202C 100%);
  --gradient-subtle-gray: linear-gradient(135deg, #4A5568 0%, #2D3748 100%);
  
  /* Typography */
  --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  
  /* Spacing */
  --spacing-micro: 8px;
  --spacing-small: 20px;
  --spacing-medium: 40px;
  --spacing-large: 80px;
  --gap-default: 40px;
  
  /* Borders */
  --border-radius: 6px;
  --border-width: 2px;
  
  /* Shadows */
  --shadow-subtle: 0 2px 8px rgba(0,0,0,0.12);
  --shadow-button: 0 4px 12px rgba(45,55,72,0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-standard: 0.3s ease;
  
  /* Container */
  --container-max-width: 1600px;
}

/* ==========================================================================
   Typography System
   ========================================================================== */

/* Headlines (Corporate Authority) */
.heading-1 {
  font-family: var(--font-family);
  font-size: 3.5rem; /* 56px */
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  color: var(--color-charcoal);
}

.heading-2 {
  font-family: var(--font-family);
  font-size: 2.5rem; /* 40px */
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  color: var(--color-charcoal);
}

.heading-3 {
  font-family: var(--font-family);
  font-size: 1.75rem; /* 28px */
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  color: var(--color-charcoal);
}

/* Body Text (Professional Readability) */
.body-large {
  font-family: var(--font-family);
  font-size: 1.25rem; /* 20px */
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-charcoal);
}

.body-text {
  font-family: var(--font-family);
  font-size: 1rem; /* 16px */
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
}

.body-small {
  font-family: var(--font-family);
  font-size: 0.875rem; /* 14px */
  font-weight: var(--font-weight-regular);
  line-height: 1.4;
  color: var(--color-charcoal);
}

/* Typography Utilities */
.text-navy { color: var(--color-navy); }
.text-charcoal { color: var(--color-charcoal); }
.text-white { color: var(--color-white); }
.text-gray { color: var(--color-dark-gray); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ==========================================================================
   Layout System
   ========================================================================== */

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-small);
}

/* ==========================================================================
   Section Types - Choose the right section for your layout needs
   ========================================================================== */

/* Vertical Flow Section - For stacked content (title, image, content) */
.section {
  min-height: 100vh;
  padding: var(--spacing-medium) 0;
}

section:first-of-type {
  padding-top: 10vh;
}

/* Auto Height Section - For content that doesn't need full viewport */
.section-auto {
  min-height: auto;
  padding: var(--spacing-large) 0;
}

/* Centered Content Section - For single centered content blocks */
.section-centered {
  min-height: 100vh;
  padding: var(--spacing-large) 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Grid Sections - For multi-column layouts */
.section-2col {
  min-height: 100vh;
  padding: var(--spacing-large) 0;
  display: flex;
  align-items: center;
}

.section-2col .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-default);
  align-items: center;
}

.section-3col {
  min-height: 100vh;
  padding: var(--spacing-large) 0;
  display: flex;
  align-items: center;
}

.section-3col .container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--gap-default);
  align-items: center;
}

/* ==========================================================================
   Flex Utilities - For flexible layouts within sections
   ========================================================================== */

.flex-2 {
  display: flex;
  gap: var(--gap-default);
  align-items: flex-start;
}

.flex-2 > * { flex: 1; }

.flex-3 {
  display: flex;
  gap: var(--gap-default);
  align-items: flex-start;
}

.flex-3 > * { flex: 1; }

/* Flex Modifiers */
.flex-grow-2 { flex: 2; }
.flex-grow-3 { flex: 3; }

/* Flex Direction & Alignment */
.flex-column { flex-direction: column; }
.flex-center { justify-content: center; align-items: center; }
.flex-between { justify-content: space-between; align-items: center; }

/* ==========================================================================
   Spacing Utilities
   ========================================================================== */

/* Margin Classes */
.margin-micro { margin: var(--spacing-micro); }
.margin-small { margin: var(--spacing-small); }
.margin-medium { margin: var(--spacing-medium); }
.margin-large { margin: var(--spacing-large); }

/* Directional Margins */
.margin-top-micro { margin-top: var(--spacing-micro); }
.margin-top-small { margin-top: var(--spacing-small); }
.margin-top-medium { margin-top: var(--spacing-medium); }
.margin-top-large { margin-top: var(--spacing-large); }

.margin-bottom-micro { margin-bottom: var(--spacing-micro); }
.margin-bottom-small { margin-bottom: var(--spacing-small); }
.margin-bottom-medium { margin-bottom: var(--spacing-medium); }
.margin-bottom-large { margin-bottom: var(--spacing-large); }

.margin-left-small { margin-left: var(--spacing-small); }
.margin-right-small { margin-right: var(--spacing-small); }

/* Padding Classes */
.padding-micro { padding: var(--spacing-micro); }
.padding-small { padding: var(--spacing-small); }
.padding-medium { padding: var(--spacing-medium); }
.padding-large { padding: var(--spacing-large); }

/* Directional Padding */
.padding-top-medium { padding-top: var(--spacing-medium); }
.padding-bottom-large { padding-bottom: var(--spacing-large); }
.padding-left-small { padding-left: var(--spacing-small); }
.padding-right-small { padding-right: var(--spacing-small); }

/* ==========================================================================
   Background & Color Utilities
   ========================================================================== */

.bg-navy { background-color: var(--color-navy); }
.bg-charcoal { background-color: var(--color-charcoal); }
.bg-white { background-color: var(--color-white); }
.bg-light-gray { background-color: var(--color-light-gray); }
.bg-medium-gray { background-color: var(--color-medium-gray); }

.bg-gradient-navy { background: var(--gradient-navy-charcoal); }
.bg-gradient-charcoal { background: var(--gradient-charcoal-tonal); }
.bg-gradient-subtle { background: var(--gradient-subtle-gray); }


/* ==========================================================================
   Button Components
   ========================================================================== */

   .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-standard);
    min-height: 44px;
  }
  
  .btn-primary {
    background: var(--gradient-navy-charcoal);
    color: var(--color-white);
  }
  
  .btn-primary:hover {
    filter: brightness(0.9);
    box-shadow: var(--shadow-button);
  }
  
  .btn-secondary {
    background: transparent;
    border: var(--border-width) solid var(--color-navy);
    color: var(--color-navy);
  }
  
  .btn-secondary:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
  }
  
  /* Button Sizes */
  .btn-large {
    padding: 20px 40px;
    font-size: 1.125rem;
  }
  
  .btn-small {
    padding: 12px 24px;
    font-size: 0.875rem;
  }

/* ==========================================================================
   Responsive Design
   ========================================================================== */

   @media (max-width: 1199px) {
    .section, .section-centered, .section-2col, .section-3col {
      min-height: 80vh;
    }
    
    .container { padding: 0 30px; }
  }
  
  @media (max-width: 767px) {
    /* Typography */
    .heading-1 { font-size: 2.5rem; }
    .heading-2 { font-size: 2rem; }
    .heading-3 { font-size: 1.5rem; }
    .body-large { font-size: 1.125rem; }
    
    /* Layout */
    .section, .section-centered, .section-2col, .section-3col {
      min-height: auto;
      padding: 60px 0;
    }
    
    .section-2col .container,
    .section-3col .container,
    .flex-2,
    .flex-3 {
      grid-template-columns: 1fr;
      flex-direction: column;
      gap: var(--spacing-small);
    }
    
    .container { padding: 0 var(--spacing-small); }
  }

  @media (max-width: 767px) {
    .btn {
      padding: 14px 28px;
      width: 100%;
      justify-content: center;
    }
    
    .btn-large {
      padding: 18px 32px;
    }
  }