/* ============================================
   My Masonic Diary - Main Stylesheet
   Modern Professional Design
   ============================================ */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Primary Colors - Modern Blues */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  /* Secondary Colors - Subtle Gold Accents */
  --secondary-50: #fffbeb;
  --secondary-100: #fef3c7;
  --secondary-200: #fde68a;
  --secondary-400: #fbbf24;
  --secondary-500: #f59e0b;
  --secondary-600: #d97706;

  /* Neutral Colors */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Semantic Colors */
  --success: #10b981;
  --success-bg: #d1fae5;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

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

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Base Styles & Typography
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  h3 { font-size: 1.5rem; }
  h4 { font-size: 1.25rem; }
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-700);
}

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

/* ============================================
   Utility Classes
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.container-narrow {
  max-width: 800px;
}

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

.text-primary { color: var(--primary-600); }
.text-secondary { color: var(--secondary-600); }
.text-muted { color: var(--gray-500); }
.text-white { color: #ffffff; }

.bg-primary { background-color: var(--primary-600); }
.bg-light { background-color: var(--gray-50); }
.bg-white { background-color: #ffffff; }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }
.py-5 { padding-top: var(--spacing-2xl); padding-bottom: var(--spacing-2xl); }
.py-6 { padding-top: var(--spacing-3xl); padding-bottom: var(--spacing-3xl); }

/* ============================================
   Navigation Header
   ============================================ */
.navbar {
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  flex-wrap: nowrap;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  text-decoration: none;
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.navbar-nav li {
  display: flex;
  align-items: center;
}

.navbar-nav a {
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
  display: inline-block;
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--primary-600);
}

.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-600);
  transition: width var(--transition-base);
}

.navbar-nav a:hover::after,
.navbar-nav a.active::after {
  width: 100%;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--gray-700);
}

.navbar-toggle i {
  font-size: 1.5rem;
}

/* Large desktop - standard spacing */
@media (min-width: 1400px) {
  .navbar-nav {
    gap: 2rem;
  }
}

/* Medium desktop - tighter spacing */
@media (min-width: 993px) and (max-width: 1399px) {
  .navbar-nav {
    gap: 1.25rem;
  }

  .navbar-nav a {
    font-size: 0.875rem;
  }

  .btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.8125rem;
  }
}

/* Mobile Navigation */
@media (max-width: 992px) {
  .navbar-nav {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base);
    z-index: 100;
  }

  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar-nav li {
    width: 100%;
  }

  .navbar-nav a {
    display: block;
    padding: 1rem 1.5rem;
  }

  .navbar-nav a::after {
    display: none;
  }

  .navbar-toggle {
    display: block;
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--primary-600);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--primary-600);
  color: #ffffff;
  border-color: var(--primary-600);
}

.btn-primary:hover {
  background-color: var(--primary-700);
  border-color: var(--primary-700);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Navbar button override to ensure white text */
.navbar .btn-primary {
  color: #ffffff !important;
}

.navbar .btn-primary:hover {
  color: #ffffff !important;
}

.btn-outline-primary {
  background-color: transparent;
  color: var(--primary-600);
  border-color: var(--primary-600);
}

.btn-outline-primary:hover {
  background-color: var(--primary-600);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--secondary-500);
  color: #ffffff;
  border-color: var(--secondary-500);
}

.btn-secondary:hover {
  background-color: var(--secondary-600);
  border-color: var(--secondary-600);
  color: #ffffff;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
  display: flex;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-900) 100%);
  color: #ffffff;
  padding: var(--spacing-3xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 1;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  color: #ffffff;
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero .lead {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  color: var(--primary-100);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero-trust {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  gap: 2rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--primary-100);
}

.hero-trust-item i {
  font-size: 1.25rem;
  color: var(--secondary-400);
}

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .lead {
    font-size: 1.125rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }
}

/* ============================================
   Feature Cards
   ============================================ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background-color: #ffffff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-icon i {
  font-size: 1.75rem;
  color: #ffffff;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--gray-900);
}

.feature-card p {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.feature-card .btn {
  margin-top: 0.5rem;
}

/* ============================================
   Pricing Cards
   ============================================ */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.pricing-toggle span {
  font-weight: 600;
  color: var(--gray-700);
}

.pricing-toggle input[type="checkbox"] {
  position: relative;
  width: 60px;
  height: 30px;
  appearance: none;
  background-color: var(--gray-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.pricing-toggle input[type="checkbox"]:checked {
  background-color: var(--primary-600);
}

.pricing-toggle input[type="checkbox"]::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background-color: #ffffff;
  border-radius: 50%;
  transition: transform var(--transition-base);
}

.pricing-toggle input[type="checkbox"]:checked::before {
  transform: translateX(30px);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background-color: #ffffff;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--primary-600);
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
}

.pricing-card.featured {
  border-color: var(--primary-600);
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--secondary-500);
  color: #ffffff;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-card h3 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--primary-600);
  line-height: 1;
  margin: 1.5rem 0;
}

.pricing-price sup {
  font-size: 1.5rem;
  vertical-align: super;
}

.pricing-period {
  font-size: 1rem;
  color: var(--gray-500);
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  margin: 2rem 0;
  text-align: left;
}

.pricing-features li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features i {
  color: var(--success);
  margin-top: 0.25rem;
  flex-shrink: 0;
}

/* ============================================
   Testimonials
   ============================================ */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.testimonial-card {
  background-color: #ffffff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

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

.testimonial-quote {
  font-style: italic;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 1.5rem;
}

.testimonial-quote::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -10px;
  font-size: 3rem;
  color: var(--primary-200);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-author-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--gray-900);
}

.testimonial-author-info p {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

/* ============================================
   FAQ / Accordion
   ============================================ */
.faq-section {
  max-width: 800px;
  margin: 0 auto;
}

.faq-category {
  margin-bottom: 2rem;
}

.faq-category-title {
  font-size: 1.5rem;
  color: var(--primary-600);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-200);
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background-color: #ffffff;
  border: none;
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--gray-50);
}

.faq-question i {
  color: var(--primary-600);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-answer-content {
  padding: 0 1.5rem 1.25rem;
  color: var(--gray-600);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.9375rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gray-800);
  background-color: #ffffff;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-600);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control::placeholder {
  color: var(--gray-400);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-text {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.375rem;
  display: none;
}

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

.form-group.error .form-error {
  display: block;
}

.form-group.success .form-control {
  border-color: var(--success);
}

/* ============================================
   Alerts
   ============================================ */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  border-left: 4px solid;
}

.alert-success {
  background-color: var(--success-bg);
  color: #065f46;
  border-color: var(--success);
}

.alert-info {
  background-color: var(--primary-50);
  color: var(--primary-900);
  border-color: var(--primary-500);
}

.alert-warning {
  background-color: var(--secondary-100);
  color: #92400e;
  border-color: var(--warning);
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: var(--danger);
}

/* ============================================
   Charity / Trust Section
   ============================================ */
.charity-promise {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: #ffffff;
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.charity-promise h2 {
  color: #ffffff;
  margin-bottom: 1rem;
}

.charity-promise p {
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  color: rgba(255, 255, 255, 0.95);
}

.charity-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 2rem auto 0;
}

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

.charity-stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.charity-stat-label {
  font-size: 0.9375rem;
  opacity: 0.9;
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: #ffffff;
  font-size: 1.125rem;
  margin-bottom: 1rem;
  font-family: var(--font-sans);
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--gray-700);
  text-align: center;
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--primary-600);
  color: #ffffff;
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
}

.back-to-top:hover {
  background-color: var(--primary-700);
  transform: translateY(-4px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================
   Responsive Utilities
   ============================================ */
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .hide-desktop {
    display: none !important;
  }
}

/* ============================================
   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-visible {
  outline: 2px solid var(--primary-600);
  outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@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;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .navbar,
  .footer,
  .back-to-top,
  .btn {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  a {
    text-decoration: underline;
  }
}