/* National Trust Verification Bureau - Stylesheet */

/* ============================================
   CSS Variables - Trust-Inspired Color Palette
   ============================================ */
:root {
  /* Primary Colors - Navy Blue (Trust, Authority) */
  --color-primary: #1a365d;
  --color-primary-dark: #0f2442;
  --color-primary-light: #2c4a6e;
  
  /* Secondary Colors - Gold (Excellence, Quality) */
  --color-gold: #c9a227;
  --color-gold-light: #e8c547;
  --color-gold-dark: #9f7f1a;
  
  /* Accent Colors */
  --color-silver: #8b949e;
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-gray-light: #e9ecef;
  --color-gray: #6c757d;
  --color-gray-dark: #343a40;
  
  /* Semantic Colors */
  --color-success: #28a745;
  --color-success-light: #d4edda;
  --color-verified: #17a2b8;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

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

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
  font-size: 1.125rem;
}

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

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

a:hover {
  color: var(--color-gold);
}

.text-gold {
  color: var(--color-gold);
}

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

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

/* ============================================
   Layout Components
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

.section {
  padding: var(--spacing-3xl) 0;
}

.section-light {
  background-color: var(--color-off-white);
}

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
  background-color: var(--color-white);
  border-bottom: 3px solid var(--color-gold);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo svg {
  width: 48px;
  height: 48px;
}

.nav {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-weight: 500;
  color: var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-off-white);
  color: var(--color-gold);
}

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

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 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='0.03'%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: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.hero-content .lead {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: rgba(201, 162, 39, 0.2);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-full);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gold-light);
  margin-bottom: var(--spacing-lg);
}

.hero-seal {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-seal svg {
  width: 280px;
  height: 280px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-primary-dark);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

/* ============================================
   Cards
   ============================================ */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-light);
}

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

.card-icon {
  width: 64px;
  height: 64px;
  background-color: var(--color-off-white);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.card-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-gold);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--color-gray);
  margin-bottom: 0;
}

/* ============================================
   Grid Layouts
   ============================================ */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 992px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Featured Business Section
   ============================================ */
.featured-business {
  background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
}

.featured-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.featured-badge {
  display: inline-block;
  background-color: var(--color-gold);
  color: var(--color-primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-md);
}

.business-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 2px solid var(--color-gold);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
}

@media (max-width: 768px) {
  .business-card {
    grid-template-columns: 1fr;
  }
}

.business-card-image {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  position: relative;
}

.business-card-image svg {
  width: 150px;
  height: 150px;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

.verified-ribbon {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background-color: var(--color-success);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.business-card-content {
  padding: var(--spacing-2xl);
}

.business-card-content h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

.business-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--color-gray);
}

.business-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.business-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-gold);
}

.business-description {
  color: var(--color-gray);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.business-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.detail-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.detail-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray);
  margin-bottom: 2px;
}

.detail-value {
  font-weight: 500;
  color: var(--color-primary);
}

/* ============================================
   How It Works Section
   ============================================ */
.steps {
  counter-reset: step;
}

.step-card {
  position: relative;
  padding-left: var(--spacing-3xl);
}

.step-card::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-gold);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-card h4 {
  margin-bottom: var(--spacing-sm);
}

.step-card p {
  color: var(--color-gray);
  margin-bottom: 0;
}

/* ============================================
   Verification Lookup Section
   ============================================ */
.lookup-section {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.lookup-section h2 {
  color: var(--color-white);
}

.lookup-form {
  display: flex;
  gap: var(--spacing-md);
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .lookup-form {
    flex-direction: column;
  }
}

.lookup-input {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-gray-dark);
}

.lookup-input:focus {
  outline: none;
  border-color: var(--color-gold);
}

.lookup-result {
  max-width: 600px;
  margin: var(--spacing-xl) auto 0;
  padding: var(--spacing-xl);
  background-color: var(--color-success-light);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  display: none;
}

.lookup-result.show {
  display: block;
  animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.lookup-result-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.lookup-result-header svg {
  width: 32px;
  height: 32px;
  color: var(--color-success);
}

.lookup-result-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-success);
}

/* ============================================
   Seals Showcase Section
   ============================================ */
.seals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  justify-items: center;
}

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

.seal-item svg {
  width: 150px;
  height: 150px;
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition-normal);
}

.seal-item:hover svg {
  transform: scale(1.1);
}

.seal-item p {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: 0;
}

/* ============================================
   Article Page Styles
   ============================================ */
.article-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
}

.article-header h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  font-size: 0.875rem;
  opacity: 0.9;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.article-content h2 {
  margin-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-gold);
}

.article-content h3 {
  margin-top: var(--spacing-xl);
}

.article-content p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.0625rem;
}

.article-content ul {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.article-content li {
  margin-bottom: var(--spacing-sm);
}

.article-highlight {
  background-color: var(--color-off-white);
  border-left: 4px solid var(--color-gold);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: italic;
}

.article-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

@media (max-width: 640px) {
  .article-stats {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--color-off-white);
  border-radius: var(--radius-md);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-gold);
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.verification-box {
  background: linear-gradient(135deg, var(--color-success-light) 0%, var(--color-white) 100%);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
  text-align: center;
}

.verification-box-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.verification-box-header svg {
  width: 48px;
  height: 48px;
  color: var(--color-success);
}

.verification-box h3 {
  color: var(--color-success);
  margin-bottom: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-bottom: 0;
}

.footer-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: var(--spacing-lg);
}

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

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

.footer-links a {
  color: var(--color-white);
  opacity: 0.8;
  font-size: 0.875rem;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom p {
  font-size: 0.875rem;
  opacity: 0.6;
  margin-bottom: 0;
}

.trust-badges {
  display: flex;
  gap: var(--spacing-md);
}

.trust-badges svg {
  width: 40px;
  height: 40px;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.trust-badges svg:hover {
  opacity: 1;
}

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

.divider {
  height: 1px;
  background-color: var(--color-gray-light);
  margin: var(--spacing-2xl) 0;
}

.mb-0 { margin-bottom: 0; }
.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); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

.mt-0 { margin-top: 0; }
.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); }
.mt-5 { margin-top: var(--spacing-2xl); }