/* Bill Layne Insurance - Modern Styles */

:root {
  /* Brand Colors */
  --color-primary: #1e3a8a;        /* Deep blue - trust & professionalism */
  --color-primary-light: #3b82f6;  /* Lighter blue for accents */
  --color-accent: #10b981;         /* Emerald green - growth & security */
  --color-accent-light: #34d399;   /* Light emerald */
  
  /* Neutrals */
  --color-background: #ffffff;
  --color-surface: #f8fafc;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  
  /* UI Colors */
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-error: #ef4444;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  
  /* Typography */
  --font-serif: 'Montserrat', -apple-system, sans-serif;
  --font-sans: 'Open Sans', -apple-system, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* 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);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #0f172a;
    --color-surface: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-light: #94a3b8;
    --color-border: #334155;
    --color-border-light: #1e293b;
    --color-primary: #3b82f6;
    --color-primary-light: #60a5fa;
  }
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Header Styles */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.9);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background-color: rgba(15, 23, 42, 0.9);
  }
}

.header-content {
  padding: var(--space-xl) 0;
  text-align: center;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

/* Navigation */
.site-nav {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
}

.nav-link {
  color: var(--color-text-secondary);
  transition: all 0.2s ease;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-surface);
  transform: translateY(-1px);
}

.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;
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 300px);
  padding: var(--space-3xl) 0;
}

/* Introduction Section */
.intro-section {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.intro-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}

.intro-description {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.intro-actions {
  margin-top: var(--space-xl);
}

.btn-primary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

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

/* Loading & Error States */
.loading-state,
.error-state {
  text-align: center;
  padding: var(--space-3xl) 0;
  color: var(--color-text-secondary);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  animation: spin 1s linear infinite;
}

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

.hidden {
  display: none !important;
}

/* Search Container */
.search-container {
  position: relative;
  max-width: 600px;
  margin: 0 auto var(--space-3xl) auto;
  text-align: center;
}

.search-input {
  width: 100%;
  padding: var(--space-lg) var(--space-xl) var(--space-lg) var(--space-3xl);
  font-size: 1.125rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-text);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.search-input::placeholder {
  color: var(--color-text-light);
}

.search-icon {
  position: absolute;
  left: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-text-light);
  pointer-events: none;
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

/* Blog Card */
.blog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  display: block;
  opacity: 0;
  transform: translateY(20px);
  box-shadow: var(--shadow-sm);
}

.blog-card.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.blog-card-article {
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* Blog Card Image */
.blog-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-image::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0; }
  50% { transform: translate(-50%, -50%) scale(1.5); opacity: 1; }
}

/* Blog Card Content */
.blog-card-content {
  padding: var(--space-xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-tags {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.blog-tag {
  background: var(--color-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card-title {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  color: var(--color-text);
}

.blog-card-date {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  display: block;
}

.blog-card-summary {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

/* Footer */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  margin-top: auto;
}

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

.footer-text {
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.footer-note {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .site-title {
    font-size: 2rem;
  }
  
  .intro-title {
    font-size: 1.75rem;
  }
  
  .search-container {
    max-width: 100%;
    margin-bottom: var(--space-2xl);
  }
  
  .search-input {
    font-size: 1rem;
    padding: var(--space-md) var(--space-lg) var(--space-md) var(--space-2xl);
  }
  
  .search-icon {
    left: var(--space-md);
    font-size: 1.125rem;
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .blog-card-content {
    padding: var(--space-lg);
  }
  
  .container {
    padding: 0 var(--space-md);
  }
}

/* Accessibility */
.blog-card:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-link:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .site-nav,
  .loading-state,
  .error-state {
    display: none;
  }
  
  .blog-card {
    break-inside: avoid;
  }
}