/* 
 * Blue Cadence - Technical Support Technology
 * Design System Stylesheet
 * Version 1.0
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
  /* Brand Colors */
  --bc-blue-primary: #2B4C8C;
  --bc-blue-dark: #1E3A5F;
  --bc-orange: #F5A623;
  --bc-teal: #17A589;
  --bc-gray-light: #F8F9FA;
  --bc-gray-medium: #6C757D;
  --bc-text-dark: #2C3E50;
  --bc-white: #FFFFFF;
  
  /* Typography */
  --bc-font-heading: Georgia, 'Times New Roman', serif;
  --bc-font-body: Arial, Helvetica, sans-serif;
  
  /* Spacing Scale */
  --bc-spacing-xs: 0.5rem;
  --bc-spacing-sm: 1rem;
  --bc-spacing-md: 2rem;
  --bc-spacing-lg: 3rem;
  --bc-spacing-xl: 4rem;
  
  /* Layout */
  --bc-max-width: 1200px;
  --bc-content-padding: 2rem;
  
  /* Effects */
  --bc-shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --bc-shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --bc-shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --bc-transition: all 0.3s ease;
  
  /* Border Radius */
  --bc-radius-sm: 4px;
  --bc-radius-md: 8px;
}

/* ============================================
   BASE STYLES & RESET
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--bc-font-body);
  color: var(--bc-text-dark);
  line-height: 1.6;
  background-color: var(--bc-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--bc-font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--bc-spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--bc-spacing-sm);
}

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

a:hover {
  color: var(--bc-orange);
}

/* ============================================
   NAVIGATION
   ============================================ */
.bc-nav {
  background-color: var(--bc-blue-primary);
  padding: var(--bc-spacing-sm) 0;
  box-shadow: var(--bc-shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.bc-nav__container {
  max-width: var(--bc-max-width);
  margin: 0 auto;
  padding: 0 var(--bc-content-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.bc-nav__brand {
  font-family: var(--bc-font-heading);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--bc-white);
}

.bc-nav__menu {
  list-style: none;
  display: flex;
  gap: var(--bc-spacing-md);
  align-items: center;
}

.bc-nav__link {
  color: var(--bc-white);
  font-weight: 500;
  padding: 0.5rem 1rem;
}

.bc-nav__link:hover {
  color: var(--bc-orange);
}

.bc-nav__cta {
  background-color: var(--bc-orange);
  color: var(--bc-white);
  padding: 0.625rem 1.5rem;
  border-radius: var(--bc-radius-sm);
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.bc-nav__cta:hover {
  background-color: #E09617;
  color: var(--bc-white);
}

/* ============================================
   HERO SECTION
   ============================================ */
.bc-hero {
  background: linear-gradient(135deg, var(--bc-blue-dark) 0%, var(--bc-blue-primary) 100%);
  color: var(--bc-white);
  padding: var(--bc-spacing-xl) var(--bc-content-padding);
  text-align: center;
}

.bc-hero__container {
  max-width: var(--bc-max-width);
  margin: 0 auto;
}

.bc-hero__title {
  font-size: 3rem;
  margin-bottom: var(--bc-spacing-sm);
  color: var(--bc-white);
}

.bc-hero__subtitle {
  font-size: 1.25rem;
  color: var(--bc-gray-light);
  font-weight: 300;
  margin-bottom: var(--bc-spacing-md);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   CONTENT CONTAINER
   ============================================ */
.bc-container {
  max-width: var(--bc-max-width);
  margin: 0 auto;
  padding: var(--bc-spacing-lg) var(--bc-content-padding);
}

/* ============================================
   CARD COMPONENT
   ============================================ */
.bc-card {
  background-color: var(--bc-white);
  border-radius: var(--bc-radius-md);
  padding: var(--bc-spacing-md);
  margin-bottom: var(--bc-spacing-md);
  box-shadow: var(--bc-shadow-sm);
  transition: var(--bc-transition);
}

.bc-card--bordered {
  border-left: 4px solid var(--bc-orange);
}

.bc-card--hoverable:hover {
  box-shadow: var(--bc-shadow-lg);
  transform: translateY(-2px);
}

.bc-card__title {
  color: var(--bc-blue-primary);
  margin-bottom: var(--bc-spacing-sm);
  font-size: 1.5rem;
}

.bc-card__subtitle {
  color: var(--bc-gray-medium);
  font-size: 0.95rem;
  margin-bottom: var(--bc-spacing-sm);
}

.bc-card__content {
  color: var(--bc-text-dark);
  line-height: 1.7;
}

/* ============================================
   RESOURCE GRID
   ============================================ */
.bc-resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--bc-spacing-md);
  margin-top: var(--bc-spacing-md);
}

.bc-resource-card {
  background-color: var(--bc-white);
  border-radius: var(--bc-radius-md);
  padding: var(--bc-spacing-md);
  border-left: 4px solid var(--bc-teal);
  box-shadow: var(--bc-shadow-sm);
  transition: var(--bc-transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.bc-resource-card:hover {
  box-shadow: var(--bc-shadow-lg);
  transform: translateY(-4px);
  border-left-color: var(--bc-orange);
}

.bc-resource-card__icon {
  width: 48px;
  height: 48px;
  background-color: var(--bc-teal);
  border-radius: var(--bc-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bc-white);
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: var(--bc-spacing-sm);
}

.bc-resource-card__title {
  font-size: 1.25rem;
  color: var(--bc-blue-primary);
  margin-bottom: var(--bc-spacing-xs);
}

.bc-resource-card__type {
  color: var(--bc-gray-medium);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--bc-spacing-sm);
}

.bc-resource-card__description {
  color: var(--bc-text-dark);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--bc-spacing-sm);
  flex-grow: 1;
}

.bc-resource-card__link {
  color: var(--bc-blue-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
}

.bc-resource-card__link:hover {
  color: var(--bc-orange);
}

.bc-resource-card__link::after {
  content: '→';
  font-size: 1.2rem;
  transition: var(--bc-transition);
}

.bc-resource-card__link:hover::after {
  transform: translateX(4px);
}

/* ============================================
   BUTTON COMPONENT
   ============================================ */
.bc-btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: var(--bc-orange);
  color: var(--bc-white);
  border: none;
  border-radius: var(--bc-radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--bc-transition);
  text-align: center;
  font-family: var(--bc-font-body);
}

.bc-btn:hover {
  background-color: #E09617;
  transform: translateY(-2px);
  box-shadow: var(--bc-shadow-md);
  color: var(--bc-white);
}

.bc-btn--secondary {
  background-color: var(--bc-blue-primary);
}

.bc-btn--secondary:hover {
  background-color: var(--bc-blue-dark);
}

.bc-btn--outline {
  background-color: transparent;
  border: 2px solid var(--bc-blue-primary);
  color: var(--bc-blue-primary);
}

.bc-btn--outline:hover {
  background-color: var(--bc-blue-primary);
  color: var(--bc-white);
}

/* ============================================
   FOOTER
   ============================================ */
.bc-footer {
  background-color: var(--bc-blue-dark);
  color: var(--bc-white);
  padding: var(--bc-spacing-lg) var(--bc-content-padding);
  margin-top: var(--bc-spacing-xl);
}

.bc-footer__container {
  max-width: var(--bc-max-width);
  margin: 0 auto;
  text-align: center;
}

.bc-footer__text {
  color: var(--bc-gray-light);
  font-size: 0.9rem;
}

.bc-footer__link {
  color: var(--bc-white);
  font-weight: 600;
}

.bc-footer__link:hover {
  color: var(--bc-orange);
}

/* ============================================
   INTRODUCTION SECTION
   ============================================ */
.bc-intro {
  background-color: var(--bc-gray-light);
  padding: var(--bc-spacing-lg) var(--bc-content-padding);
  margin-bottom: var(--bc-spacing-lg);
}

.bc-intro__container {
  max-width: var(--bc-max-width);
  margin: 0 auto;
}

.bc-intro__title {
  color: var(--bc-blue-primary);
  margin-bottom: var(--bc-spacing-sm);
}

.bc-intro__text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--bc-text-dark);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.bc-contact {
  padding: var(--bc-spacing-lg) var(--bc-content-padding);
  background-color: var(--bc-gray-light);
}

.bc-contact__container {
  max-width: 600px;
  margin: 0 auto;
}

.bc-contact__title {
  text-align: center;
  color: var(--bc-blue-primary);
  margin-bottom: var(--bc-spacing-md);
}

.bc-contact__intro {
  text-align: center;
  margin-bottom: var(--bc-spacing-lg);
  color: var(--bc-gray-medium);
  font-size: 1.05rem;
  line-height: 1.7;
}

.bc-contact__methods {
  display: flex;
  flex-direction: column;
  gap: var(--bc-spacing-md);
}

.bc-contact__method {
  background: var(--bc-white);
  padding: var(--bc-spacing-md);
  border-radius: var(--bc-radius-md);
  border-left: 4px solid var(--bc-orange);
  box-shadow: var(--bc-shadow-sm);
  transition: var(--bc-transition);
}

.bc-contact__method:hover {
  transform: translateX(6px);
  box-shadow: var(--bc-shadow-md);
  border-left-color: var(--bc-teal);
}

.bc-contact__method-title {
  font-family: var(--bc-font-heading);
  font-size: 1.25rem;
  color: var(--bc-blue-primary);
  margin-bottom: var(--bc-spacing-xs);
}

.bc-contact__method-value {
  font-size: 1.15rem;
  color: var(--bc-text-dark);
  font-weight: 500;
}

.bc-contact__method-value a {
  color: var(--bc-blue-primary);
  transition: var(--bc-transition);
  text-decoration: none;
}

.bc-contact__method-value a:hover {
  color: var(--bc-orange);
  text-decoration: underline;
}

.bc-contact__note {
  text-align: center;
  margin-top: var(--bc-spacing-lg);
  padding-top: var(--bc-spacing-md);
  border-top: 1px solid var(--bc-gray-medium);
  color: var(--bc-gray-medium);
  font-style: italic;
  font-size: 0.95rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  :root {
    --bc-content-padding: 1rem;
  }
  
  .bc-nav__menu {
    gap: var(--bc-spacing-sm);
  }
  
  .bc-nav__link {
    padding: 0.5rem;
    font-size: 0.9rem;
  }
  
  .bc-hero__title {
    font-size: 2rem;
  }
  
  .bc-hero__subtitle {
    font-size: 1rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .bc-resource-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .bc-nav__container {
    flex-direction: column;
    gap: var(--bc-spacing-sm);
  }
  
  .bc-nav__menu {
    flex-direction: column;
    width: 100%;
    text-align: center;
  }
}