/* CSA Website Global Styles */

/* CSS Custom Properties (Variables) */
:root {
  /* Colors - Light Theme */
  --primary-color: #1a365d;
  --primary-light: #2b77ad;
  --primary-dark: #0f2b42;
  --secondary-color: #3182ce;
  --secondary-light: #4299e1;
  --secondary-dark: #2c5aa0;
  
  --accent-color: #38a169;
  --accent-light: #48bb78;
  --accent-dark: #2f855a;
  
  --warning-color: #d69e2e;
  --danger-color: #e53e3e;
  --success-color: #38a169;
  --info-color: #3182ce;
  
  /* Text Colors */
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-inverse: #ffffff;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-tertiary: #edf2f7;
  --bg-overlay: rgba(0, 0, 0, 0.5);
  
  /* Border Colors */
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --border-dark: #cbd5e0;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.2s ease-in-out;
  --transition-slow: 0.3s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Theme Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --text-inverse: #1a202c;
    
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --bg-overlay: rgba(0, 0, 0, 0.7);
    
    --border-color: #4a5568;
    --border-light: #2d3748;
    --border-dark: #718096;
  }
}

/* Dark theme class override for manual toggle */
.dark-theme {
  --text-primary: #f7fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #a0aec0;
  --text-inverse: #1a202c;
  
  --bg-primary: #1a202c;
  --bg-secondary: #2d3748;
  --bg-tertiary: #4a5568;
  --bg-overlay: rgba(0, 0, 0, 0.7);
  
  --border-color: #4a5568;
  --border-light: #2d3748;
  --border-dark: #718096;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--spacing-4) 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--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: 0 0 var(--spacing-4) 0;
  color: var(--text-secondary);
}

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

a:hover {
  color: var(--secondary-dark);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/* Layout Components */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-6);
  }
}

.section {
  padding: var(--spacing-16) 0;
}

.section-sm {
  padding: var(--spacing-12) 0;
}

.section-lg {
  padding: var(--spacing-24) 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Center the Why Join CSA grid */
#why-join .grid-3 {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-6);
}

#why-join .grid-3 .card {
  flex: 0 0 300px;
  max-width: 300px;
}

/* Center content inside cards in Why Join CSA section */
#why-join .card {
  text-align: center;
}

#why-join .card-body {
  text-align: center;
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

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

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

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

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

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

.flex-wrap {
  flex-wrap: wrap;
}

.flex-1 {
  flex: 1;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  user-select: none;
}

.btn:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

.btn-primary {
  color: white;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: white;
  text-decoration: none;
}

.btn-secondary {
  color: white;
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: white;
  text-decoration: none;
}

.btn-outline {
  color: var(--primary-color);
  background-color: transparent;
  border-color: var(--primary-color);
}

.btn-outline:hover {
  color: white;
  background-color: var(--primary-color);
  text-decoration: none;
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Card Component */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.card-body {
  margin-bottom: var(--spacing-4);
}

.card-footer {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
}

/* Form Styles */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-control {
  display: block;
  width: 100%;
  padding: var(--spacing-3);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.form-control:invalid {
  border-color: var(--danger-color);
}

.form-help {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.form-error {
  margin-top: var(--spacing-1);
  font-size: var(--font-size-sm);
  color: var(--danger-color);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
}

select.form-control {
  cursor: pointer;
}

/* Checkbox and Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-3);
}

.form-check-input {
  margin-right: var(--spacing-2);
  margin-top: 0.25rem;
}

.form-check-label {
  margin-bottom: 0;
  font-weight: var(--font-weight-normal);
  cursor: pointer;
}

/* Header Styles */
.site-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: background-color var(--transition-normal);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--spacing-4) 0;
}

.brand {
  position: absolute;
  left: 0;
  display: flex;
  align-items: center;
}

.mobile-menu-toggle {
  position: absolute;
  right: 0;
}

.brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-link:hover {
  text-decoration: none;
}

.brand-logo {
  height: 70px;
  width: 70px;
  object-fit: contain;
  margin-right: var(--spacing-3);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

.brand-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: 1;
}

/* Navigation */
.main-nav {
  display: none;
}

@media (min-width: 768px) {
  .main-nav {
    display: block;
  }
  
  .main-nav-centered {
    position: static;
  }
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-6);
}

.nav-link {
  display: block;
  padding: var(--spacing-2) 0;
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.nav-link.active {
  color: var(--primary-color);
  font-weight: var(--font-weight-semibold);
}

.nav-cta {
  padding: var(--spacing-2) var(--spacing-4) !important;
  background-color: var(--secondary-color);
  color: white !important;
  border-radius: var(--border-radius-md);
}

.nav-cta:hover {
  background-color: var(--secondary-dark);
  color: white !important;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  cursor: pointer;
  user-select: none;
}

.dropdown-toggle::after {
  content: '▼';
  font-size: 0.7em;
  margin-left: 0.5em;
  transition: transform 0.2s ease;
}

.dropdown-toggle:hover::after,
.dropdown.active .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  min-width: 160px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  z-index: 1000;
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: all 0.2s ease;
}

.dropdown-link:hover {
  background-color: var(--bg-secondary);
  color: var(--secondary-color);
  text-decoration: none;
}

/* Leadership Section */
.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
  max-width: 1200px;
  margin: 0 auto;
}

.leadership-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-6);
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.leadership-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-color);
}

.leadership-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-4);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  position: relative;
}


.avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.avatar-icon {
  font-size: var(--font-size-xl);
}

/* Default: show initials, hide image */
.leadership-avatar .avatar-initials {
  display: block;
  color: white;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  letter-spacing: 0.5px;
}

.leadership-avatar .avatar-image {
  display: none;
}

/* When image is present, hide initials and show image */
.leadership-avatar .avatar-image {
  display: block;
}

.leadership-avatar .avatar-image ~ .avatar-initials {
  display: none;
}

.leadership-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0 0 var(--spacing-2);
}

.leadership-title {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
  font-weight: var(--font-weight-medium);
}

.leadership-card-link {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border: 2px dashed var(--border-dark);
  cursor: pointer;
  position: relative;
}

.leadership-card-link:hover {
  border-style: solid;
  border-color: var(--secondary-color);
  background: linear-gradient(135deg, var(--secondary-light), var(--secondary-color));
}

.leadership-card-link:hover .leadership-name,
.leadership-card-link:hover .leadership-title {
  color: white;
}

.leadership-link {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: transparent;
  font-weight: var(--font-weight-semibold);
}

.leadership-card-link:hover .leadership-link {
  color: transparent;
}

/* Mobile responsiveness for leadership */
@media (max-width: 768px) {
  .leadership-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .leadership-card {
    padding: var(--spacing-4);
  }
  
  .leadership-avatar {
    width: 60px;
    height: 60px;
  }
  
  .avatar-initials {
    font-size: var(--font-size-base);
  }
}

/* Board Year Selector */
.board-year-selector {
  display: flex;
  justify-content: center;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.year-button {
  padding: var(--spacing-3) var(--spacing-6);
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all 0.3s ease;
}

.year-button:hover {
  background: var(--secondary-color);
  border-color: var(--secondary-color);
  color: white;
}

.year-button.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.board-section {
  display: none;
}

.board-section.active {
  display: block;
}

@media (max-width: 768px) {
  .board-year-selector {
    flex-direction: column;
    align-items: center;
  }
  
  .year-button {
    width: 200px;
  }
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Theme Toggle */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-2);
  cursor: pointer;
  font-size: var(--font-size-lg);
  transition: border-color var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--secondary-color);
}

.theme-icon {
  display: none;
}

.theme-icon.light-icon {
  display: block;
}

.dark-theme .theme-icon.light-icon {
  display: none;
}

.dark-theme .theme-icon.dark-icon {
  display: block;
}

/* Sticky Join Button */
.sticky-join-mobile {
  position: fixed;
  bottom: var(--spacing-4);
  left: var(--spacing-4);
  right: var(--spacing-4);
  z-index: var(--z-fixed);
  display: block;
}

@media (min-width: 768px) {
  .sticky-join-mobile {
    display: none;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  text-align: center;
  padding: var(--spacing-20) 0;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-4);
  color: white;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-8);
  opacity: 0.9;
}

@media (max-width: 640px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
}

/* Footer */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-16) 0 var(--spacing-8) 0;
  margin-top: var(--spacing-16);
}

.footer-main {
  display: grid;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

@media (min-width: 640px) {
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-main {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
}

.footer-subtitle {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-3);
}

.footer-description {
  color: var(--text-muted);
  margin-bottom: var(--spacing-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-2);
}

.footer-links a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: var(--spacing-4);
  margin-top: var(--spacing-4);
}

.social-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.social-link:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-6);
  text-align: center;
}

.footer-bottom-content {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.footer-bottom-content p {
  margin-bottom: var(--spacing-2);
}

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

/* Alert/Message Components */
.alert {
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
}

.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}

.alert-error {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-warning {
  color: #856404;
  background-color: #fff3cd;
  border-color: #ffeaa7;
}

.alert-info {
  color: #0c5460;
  background-color: #d1ecf1;
  border-color: #bee5eb;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-white { color: white; }

.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-tertiary { background-color: var(--bg-tertiary); }
.bg-primary-dark { 
  background-color: var(--primary-color); 
  color: white;
}

.bg-primary-dark h1,
.bg-primary-dark h2,
.bg-primary-dark h3,
.bg-primary-dark h4,
.bg-primary-dark h5,
.bg-primary-dark h6 {
  color: white;
}

.bg-primary-dark .text-secondary {
  color: rgba(255, 255, 255, 0.8);
}

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

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

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }

/* Loading Spinner */
.spinner {
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--secondary-color);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Skip Link */
.skip-link:focus {
  position: absolute;
  top: var(--spacing-2);
  left: var(--spacing-2);
  background: var(--primary-color);
  color: white;
  padding: var(--spacing-2) var(--spacing-4);
  text-decoration: none;
  border-radius: var(--border-radius-md);
  z-index: var(--z-tooltip);
}

/* Focus Management */
.focus-trap {
  outline: none;
}

/* Print Styles */
@media print {
  .no-print {
    display: none;
  }
  
  .site-header,
  .site-footer,
  .sticky-join-mobile {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  h1, h2, h3 {
    page-break-after: avoid;
  }
  
  .card {
    border: 1px solid #000;
    box-shadow: none;
  }
}