/* 1NCLU5IVE SANDBACH - Main Stylesheet */
/* Accessibility-first, performance-optimized CSS */

/* ===== CSS RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette - Calm blues + friendly neutrals */
  --primary-blue: #2563eb;
  --primary-blue-dark: #1e40af;
  --primary-blue-light: #3b82f6;
  --accent-teal: #0d9488;
  --accent-teal-dark: #0f766e;
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  --white: #ffffff;
  --focus-ring: #3b82f6;
  
  /* Typography */
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.6;
  --line-height-heading: 1.3;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  
  /* Layout */
  --max-width-content: 1200px;
  --max-width-text: 65ch;
  --border-radius: 8px;
  --touch-target-min: 44px;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  line-height: var(--line-height-base);
  color: var(--neutral-800);
  background: var(--white);
  overflow-x: hidden;
}

/* ===== SKIP LINK (Accessibility) ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary-blue);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  font-weight: 600;
  z-index: 10000;
  border-radius: 0 0 var(--border-radius) 0;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-heading);
  color: var(--neutral-900);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
  margin-top: var(--spacing-xl);
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-lg);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
  max-width: var(--max-width-text);
}

a {
  color: var(--primary-blue);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--primary-blue-dark);
}

a:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ===== HEADER & NAVIGATION ===== */
.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--neutral-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.header-container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.site-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-blue);
  text-decoration: none;
}

.site-logo:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.main-nav a {
  text-decoration: none;
  color: var(--neutral-700);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  display: block;
  border-radius: var(--border-radius);
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  background: var(--neutral-100);
  color: var(--primary-blue);
}

.main-nav a:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ===== LAYOUT CONTAINERS ===== */
.container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

main {
  min-height: 60vh;
}

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

.hero h1 {
  color: var(--white);
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero p {
  font-size: 1.25rem;
  margin: 0 auto var(--spacing-lg);
  max-width: 700px;
  opacity: 0.95;
}

.hero-ctas {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

/* ===== BUTTONS & CTAs ===== */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  min-height: var(--touch-target-min);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  font-family: var(--font-base);
}

.btn:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

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

.btn-primary:hover {
  background: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

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

.btn-secondary:hover {
  background: var(--neutral-100);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

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

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

/* ===== CARDS & GRID LAYOUTS ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.card {
  background: var(--white);
  border: 2px solid var(--neutral-200);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--primary-blue);
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  transform: translateY(-4px);
}

.card h3 {
  color: var(--primary-blue);
  margin-top: 0;
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--accent-teal);
}

/* ===== IMPACT STATS ===== */
.impact-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg) 0;
}

.stat-card {
  background: var(--neutral-50);
  border-left: 4px solid var(--accent-teal);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-blue);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 1rem;
  color: var(--neutral-700);
  font-weight: 500;
}

/* ===== FEATURED STORY ===== */
.featured-story {
  background: var(--neutral-50);
  border-left: 6px solid var(--primary-blue);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  border-radius: var(--border-radius);
}

.featured-story blockquote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--neutral-700);
  margin: var(--spacing-md) 0;
  padding-left: var(--spacing-md);
}

.featured-story cite {
  font-weight: 600;
  color: var(--neutral-800);
  font-style: normal;
}

/* ===== EVENTS LIST ===== */
.event-card {
  background: var(--white);
  border: 2px solid var(--neutral-200);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  align-items: start;
}

.event-date {
  background: var(--primary-blue);
  color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  text-align: center;
  min-width: 80px;
}

.event-date-day {
  font-size: 2rem;
  font-weight: 700;
  display: block;
  line-height: 1;
}

.event-date-month {
  font-size: 0.875rem;
  text-transform: uppercase;
  font-weight: 600;
}

.event-details {
  flex: 1;
}

.event-details h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-xs);
}

.accessibility-badges {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--neutral-100);
  color: var(--neutral-700);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--neutral-300);
}

.badge-accessible {
  background: #dcfce7;
  color: #166534;
  border-color: #86efac;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--neutral-800);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  font-family: var(--font-base);
  border: 2px solid var(--neutral-300);
  border-radius: var(--border-radius);
  background: var(--white);
  color: var(--neutral-800);
  min-height: var(--touch-target-min);
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-color: var(--primary-blue);
}

textarea {
  min-height: 150px;
  resize: vertical;
}

/* ===== BREADCRUMBS ===== */
.breadcrumb {
  padding: var(--spacing-md) 0;
  font-size: 0.875rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb li:not(:last-child)::after {
  content: "›";
  color: var(--neutral-500);
  font-size: 1.2rem;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--neutral-700);
  font-weight: 600;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-200);
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: var(--max-width-content);
  margin: 0 auto var(--spacing-lg);
}

.footer-section h3 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-xs);
}

.footer-section a {
  color: var(--neutral-200);
  text-decoration: none;
}

.footer-section a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--neutral-700);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
  color: var(--neutral-300);
  max-width: var(--max-width-content);
  margin: 0 auto;
}

.charity-number {
  font-weight: 600;
  color: currentColor; /* inherit from surrounding text by default */
}

/* Keep strong contrast for charity number inside the dark footer */
.site-footer .charity-number {
  color: var(--neutral-200);
}

/* ===== UTILITY CLASSES ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

.mb-0 {
  margin-bottom: 0;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  :root {
    --font-size-base: 16px;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
  }
  
  .hero-ctas {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .event-card {
    flex-direction: column;
  }
}

/* ===== PRINT STYLES ===== */
@media print {
  .site-header,
  .site-footer,
  .btn,
  .skip-link {
    display: none;
  }
  
  body {
    font-size: 12pt;
    color: #000;
  }
  
  a {
    text-decoration: underline;
    color: #000;
  }
  
  a[href^="http"]::after {
    content: " (" attr(href) ")";
  }
}

/* ===== FOCUS VISIBLE (Enhanced Accessibility) ===== */
*:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}