/* Just Enough Portuguese - Main Stylesheet */
/* A practical, refined design for quick reference */
/* Supports Brazil/Portugal regional toggle */

:root {
  /* Color Palette - Portuguese/Brazilian inspired */
  --midnight: #1a1f35;
  --navy: #2c3e50;
  --slate: #4a5568;
  --stone: #6b7280;
  --warm-gray: #9ca3af;
  --cream: #faf9f7;
  --white: #ffffff;
  --portuguese-green: #059669;
  --portuguese-green-dark: #047857;
  --portuguese-green-light: #10b981;
  --accent-gold: #d97706;
  --accent-red: #dc2626;
  --brazil-green: #009739;
  --brazil-yellow: #FEDD00;
  --portugal-red: #dc2626;
  --portugal-green: #006600;
  --success: #059669;
  --warning: #d97706;
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Layout */
  --max-width: 1200px;
  --content-width: 800px;
  --sidebar-width: 280px;
  
  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--navy);
  background-color: var(--cream);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--midnight);
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
}

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

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

a:hover {
  color: var(--portuguese-green-dark);
}

strong {
  font-weight: 600;
}

/* Header */
.site-header {
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--midnight);
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--midnight);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--portuguese-green) 0%, var(--portuguese-green-dark) 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  font-weight: 700;
}

/* ============================================
   Region Toggle - Brazil/Portugal Switch
   ============================================ */
.region-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.region-toggle {
  display: flex;
  align-items: center;
  background: var(--cream);
  border-radius: var(--radius-md);
  padding: 4px;
  border: 2px solid rgba(0,0,0,0.1);
  position: relative;
}

.region-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--slate);
  position: relative;
  z-index: 1;
}

.region-btn:hover {
  color: var(--midnight);
}

.region-btn.active {
  color: var(--white);
}

.region-btn .flag {
  font-size: 1.1rem;
}

.region-toggle-slider {
  position: absolute;
  top: 4px;
  bottom: 4px;
  width: calc(50% - 4px);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  z-index: 0;
}

.region-toggle[data-region="br"] .region-toggle-slider {
  left: 4px;
  background: linear-gradient(135deg, var(--brazil-green) 0%, #007a2e 100%);
}

.region-toggle[data-region="pt"] .region-toggle-slider {
  left: calc(50%);
  background: linear-gradient(135deg, var(--portugal-red) 0%, #b91c1c 100%);
}

/* Mobile region toggle */
@media (max-width: 600px) {
  .region-btn span:not(.flag) {
    display: none;
  }
  .region-btn {
    padding: 8px 10px;
  }
}

/* Navigation */
.main-nav {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.main-nav a {
  padding: var(--space-sm) var(--space-md);
  color: var(--slate);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--portuguese-green);
  background: rgba(5, 150, 105, 0.08);
}

.main-nav a.active {
  color: var(--portuguese-green);
  background: rgba(5, 150, 105, 0.1);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* Mobile Navigation */
@media (max-width: 1000px) {
  .nav-toggle {
    display: block;
  }
  
  .header-inner {
    flex-wrap: wrap;
  }
  
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    display: none;
    box-shadow: var(--shadow-lg);
  }
  
  .main-nav.open {
    display: flex;
  }
  
  .main-nav a {
    padding: var(--space-md);
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--midnight) 0%, var(--navy) 100%);
  color: var(--white);
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  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-content {
  position: relative;
  max-width: var(--content-width);
  margin: 0 auto;
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--space-lg);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
}

.hero-tagline {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero Region Banner */
.hero-region-banner {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255,255,255,0.15);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-region-banner .flag {
  font-size: 1.5rem;
}

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

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

.btn-primary:hover {
  background: var(--portuguese-green-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  color: var(--white);
}

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

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

/* Main Content */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

/* Section Cards */
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.section-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
  display: block;
}

.section-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--portuguese-green);
  color: inherit;
}

.section-card-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.1) 0%, rgba(5, 150, 105, 0.05) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: var(--space-lg);
}

.section-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
}

.section-card p {
  color: var(--slate);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.section-card-link {
  color: var(--portuguese-green);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.section-card-link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.section-card:hover .section-card-link::after {
  transform: translateX(4px);
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--midnight) 0%, var(--navy) 100%);
  color: var(--white);
  padding: var(--space-2xl) var(--space-lg);
  position: relative;
}

.page-header::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;
}

.page-header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

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

.page-header p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  max-width: 600px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
  color: rgba(255,255,255,0.7);
}

.breadcrumb a {
  color: rgba(255,255,255,0.7);
}

.breadcrumb a:hover {
  color: var(--white);
}

/* Content Layout */
.content-wrapper {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--space-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

@media (max-width: 900px) {
  .content-wrapper {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    order: -1;
  }
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.sidebar-section {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
}

.sidebar-section h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--stone);
  margin-bottom: var(--space-md);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: var(--space-xs);
}

.sidebar-nav a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--slate);
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar-nav a:hover {
  background: rgba(5, 150, 105, 0.08);
  color: var(--portuguese-green);
}

.sidebar-nav a.active {
  background: rgba(5, 150, 105, 0.1);
  color: var(--portuguese-green);
  font-weight: 600;
}

/* ============================================
   Vocabulary Entry with Regional Variants
   ============================================ */
.vocab-section {
  margin-bottom: var(--space-2xl);
}

.vocab-section > h2 {
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--portuguese-green);
  margin-bottom: var(--space-xl);
}

.vocab-entry {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
  border-left: 4px solid var(--portuguese-green);
  position: relative;
}

.vocab-entry:target {
  animation: highlight 2s ease;
}

@keyframes highlight {
  0% { background: rgba(5, 150, 105, 0.15); }
  100% { background: var(--white); }
}

/* Regional variant badge */
.vocab-entry.has-variant::before {
  content: '🇧🇷/🇵🇹';
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.1) 0%, rgba(217, 119, 6, 0.1) 100%);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.vocab-portuguese {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--midnight);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  padding-right: 60px;
}

.vocab-pronunciation {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--stone);
  font-weight: 400;
}

.vocab-meaning {
  font-size: 1.1rem;
  color: var(--portuguese-green-dark);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

/* Variant display */
.vocab-variant {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--cream);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.vocab-variant-label {
  font-weight: 600;
  color: var(--stone);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.vocab-variant-other {
  color: var(--slate);
  font-family: var(--font-mono);
  opacity: 0.7;
}

.vocab-variant-other::before {
  content: '(';
}

.vocab-variant-other::after {
  content: ')';
}

/* Hide inactive variant terms */
[data-region="br"] .pt-only,
[data-region="pt"] .br-only {
  display: none;
}

[data-region="br"] .br-term { display: inline; }
[data-region="br"] .pt-term { display: none; }
[data-region="pt"] .pt-term { display: inline; }
[data-region="pt"] .br-term { display: none; }

/* Show alternate in vocab-variant */
[data-region="br"] .show-pt { display: inline; }
[data-region="br"] .show-br { display: none; }
[data-region="pt"] .show-br { display: inline; }
[data-region="pt"] .show-pt { display: none; }

.vocab-details {
  display: grid;
  gap: var(--space-md);
}

.vocab-detail {
  display: flex;
  gap: var(--space-md);
}

.vocab-detail-label {
  flex-shrink: 0;
  width: 120px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--stone);
  padding-top: 2px;
}

.vocab-detail-content {
  color: var(--slate);
  font-size: 0.95rem;
}

.vocab-gotcha {
  background: rgba(217, 119, 6, 0.08);
  border-left: 3px solid var(--warning);
  padding: var(--space-md);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: var(--space-md);
}

.vocab-gotcha-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--warning);
  margin-bottom: var(--space-xs);
}

.vocab-related {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.vocab-related-tag {
  background: rgba(5, 150, 105, 0.08);
  color: var(--portuguese-green);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Quick Reference Box */
.quick-ref {
  background: linear-gradient(135deg, var(--midnight) 0%, var(--navy) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.quick-ref h3 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.quick-ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.quick-ref-item {
  background: rgba(255,255,255,0.1);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
}

.quick-ref-portuguese {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.quick-ref-english {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

/* Table of Contents */
.toc {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
}

.toc h3 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
  color: var(--navy);
}

.toc-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-sm);
}

.toc-list a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  color: var(--slate);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toc-list a:hover {
  background: rgba(5, 150, 105, 0.08);
  color: var(--portuguese-green);
}

.toc-list a::before {
  content: '→';
  color: var(--portuguese-green);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.toc-list a:hover::before {
  opacity: 1;
}

/* Download Section */
.download-section {
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.05) 0%, rgba(5, 150, 105, 0.02) 100%);
  border: 2px dashed rgba(5, 150, 105, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  margin: var(--space-2xl) 0;
}

.download-section h3 {
  margin-bottom: var(--space-sm);
}

.download-section p {
  color: var(--slate);
  margin-bottom: var(--space-lg);
}

.download-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--white);
  border: 2px solid var(--portuguese-green);
  color: var(--portuguese-green);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.download-btn:hover {
  background: var(--portuguese-green);
  color: var(--white);
}

.download-btn .flag {
  font-size: 1.2rem;
}

/* Intro Text */
.intro-text {
  font-size: 1.1rem;
  color: var(--slate);
  max-width: 700px;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

/* Feature List */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.feature-item {
  display: flex;
  gap: var(--space-md);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(5, 150, 105, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.feature-content h4 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.feature-content p {
  font-size: 0.9rem;
  color: var(--slate);
  margin: 0;
}

/* 50 Words Grid */
.words-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.word-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition-fast);
  position: relative;
}

.word-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--portuguese-green);
}

.word-card.has-variant::after {
  content: '🇧🇷/🇵🇹';
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-size: 0.75rem;
  opacity: 0.7;
}

.word-card-portuguese {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--midnight);
  margin-bottom: var(--space-xs);
}

.word-card-english {
  color: var(--portuguese-green);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.word-card-context {
  font-size: 0.85rem;
  color: var(--slate);
}

/* Category Badge */
.category-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(5, 150, 105, 0.1);
  color: var(--portuguese-green);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

/* Search */
.search-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.06);
}

.search-input-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-left: 48px;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 2px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--portuguese-green);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--stone);
}

/* Info Box */
.info-box {
  background: rgba(5, 150, 105, 0.05);
  border-left: 4px solid var(--portuguese-green);
  padding: var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-lg) 0;
}

.info-box h4 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--portuguese-green);
  margin-bottom: var(--space-sm);
}

.info-box p {
  margin-bottom: 0;
  color: var(--slate);
}

/* Warning Box */
.warning-box {
  background: rgba(220, 38, 38, 0.05);
  border-left: 4px solid var(--accent-red);
  padding: var(--space-lg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-lg) 0;
}

.warning-box h4 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-red);
  margin-bottom: var(--space-sm);
}

/* Region Info Box */
.region-info-box {
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.05) 0%, rgba(217, 119, 6, 0.05) 100%);
  border: 2px solid rgba(5, 150, 105, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.region-info-box h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--midnight);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.region-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 600px) {
  .region-comparison {
    grid-template-columns: 1fr;
  }
}

.region-column {
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.region-column.brazil {
  background: rgba(0, 151, 57, 0.08);
}

.region-column.portugal {
  background: rgba(220, 38, 38, 0.08);
}

.region-column h5 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Footer */
.site-footer {
  background: var(--midnight);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-section h4 {
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

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

.footer-section li {
  margin-bottom: var(--space-sm);
}

.footer-section a {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

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

.footer-bottom {
  max-width: var(--max-width);
  margin: var(--space-xl) auto 0;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.9rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--stone); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* Subsection styling */
.subsection {
  margin-bottom: var(--space-2xl);
}

.subsection h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--navy);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

/* Prose / Article Styles */
.prose {
  max-width: 700px;
}

.prose h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  font-size: 1.1rem;
}

.prose p {
  margin-bottom: var(--space-md);
  color: var(--slate);
}

.prose ul, .prose ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
}

.prose li {
  margin-bottom: var(--space-sm);
  color: var(--slate);
}

.prose a {
  color: var(--portuguese-green);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose a:hover {
  color: var(--portuguese-green-dark);
}

.prose strong {
  color: var(--navy);
  font-weight: 600;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .sidebar,
  .nav-toggle,
  .search-box,
  .download-section,
  .toc,
  .region-toggle-wrapper {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
    font-size: 11pt;
    line-height: 1.5;
  }
  
  .content-wrapper {
    display: block;
  }
  
  main {
    max-width: 100%;
  }
  
  .page-header {
    background: none;
    color: black;
    padding: 1rem 0;
    border-bottom: 2px solid black;
  }
  
  .page-header h1 {
    color: black;
    font-size: 18pt;
  }
  
  .page-header p {
    color: #333;
  }
  
  .vocab-entry {
    break-inside: avoid;
    page-break-inside: avoid;
    border: 1px solid #ccc;
    margin-bottom: 0.5rem;
    padding: 0.5rem;
  }
  
  .vocab-portuguese {
    font-size: 12pt;
  }
  
  .quick-ref {
    break-inside: avoid;
    page-break-inside: avoid;
    background: #f5f5f5;
    border: 1px solid #ccc;
  }
  
  .warning-box, .info-box {
    break-inside: avoid;
    page-break-inside: avoid;
    border: 2px solid #333;
    background: none;
  }
  
  a {
    color: black;
    text-decoration: none;
  }
}