/* The Autism PAC - Global Styles */

/* ============================================
   VARIABLES & THEME
   ============================================ */
:root {
  /* Autism-friendly color palette (high contrast, calming) */
  --primary-blue: #2563eb;
  --primary-dark: #1e40af;
  --accent-teal: #0d9488;
  --accent-green: #059669;

  /* Neutrals */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;

  /* Semantic colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Georgia', 'Times New Roman', serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Layout */
  --max-width-content: 1200px;
  --max-width-reading: 680px;

  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

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

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

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

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

strong {
  font-weight: 600;
}

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

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

.section {
  padding: var(--spacing-2xl) 0;
}

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

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  background: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
}

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

.nav-link {
  color: var(--gray-700);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover {
  background: var(--gray-100);
  text-decoration: none;
}

/* Mobile menu toggle (hidden by default, shown on mobile) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-700);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
  color: white;
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.hero h1 {
  color: white;
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

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

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--gray-700);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: 1rem;
  font-family: var(--font-sans);
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.required {
  color: var(--error);
}

/* Checkbox groups */
.checkbox-group {
  background: var(--gray-100);
  padding: var(--spacing-md);
  border-left: 4px solid var(--primary-blue);
  border-radius: var(--radius-sm);
  margin: var(--spacing-md) 0;
}

.checkbox-group label {
  display: flex;
  align-items: flex-start;
  font-weight: normal;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-right: var(--spacing-sm);
  margin-top: 4px;
  flex-shrink: 0;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-md);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--gray-200);
}

.card-title {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-2xl);
}

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

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: var(--gray-300);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--gray-700);
  font-size: 0.875rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--gray-600);
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.disclaimer {
  background: var(--gray-100);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-top: var(--spacing-md);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
  }

  .nav-list.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.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;
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 3px solid var(--primary-blue);
  outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}