/* BBC-Inspired CSS Reset & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  /* Primary Color Palette (BBC Red and variations) */
  --primary: #BB1919; /* BBC Red */
  --primary-dark: #8B0000;
  --primary-light: #CC3333;
  --primary-bg: #FFF1F1;
  
  /* Neutral Colors (BBC's grayscale palette) */
  --text-primary: #141414;
  --text-secondary: #4A4A4A;
  --text-muted: #6D6D6D;
  --text-light: #A1A1A1;
  
  /* Background Colors */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F6F6F6;
  --bg-tertiary: #EDEDED;
  --bg-dark: #2C2C2C;
  
  /* Border & Divider Colors */
  --border-light: #E0E0E0;
  --border-medium: #C7C7C7;
  --border-dark: #A1A1A1;
  
  /* Status Colors */
  --success: #00703C; /* BBC Green */
  --warning: #FF9900; /* BBC Orange */
  --error: #BB1919; /* BBC Red */
  --info: #0052A4; /* BBC Blue */
  
  /* Layout Properties */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 6px 20px rgba(0, 0, 0, 0.25);
  
  /* Spacing System */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Typography */
  --font-family: 'ReithSans', 'Helvetica', 'Arial', sans-serif; /* BBC's primary font */
  --font-mono: 'ReithMono', 'Courier New', monospace;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.4s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

main {
  flex: 1;
  padding: var(--space-xl) var(--space-lg);
  max-width: 1280px; /* BBC's typical content width */
  margin: 0 auto;
  width: 100%;
  position: relative;
}

/* Enhanced Link Styles */
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-normal);
  font-weight: 500;
}

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

a:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  line-height: 1.2;
  margin: 0 0 var(--space-lg) 0;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

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

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  margin-bottom: var(--space-md);
}

p {
  margin: 0 0 var(--space-lg) 0;
  color: var(--text-secondary);
}

/* Universal Image Styling */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  margin: var(--space-lg) 0;
  display: block;
  transition: all var(--transition-normal);
}

img:hover {
  box-shadow: var(--shadow-sm);
}

/* Figure Elements */
figure {
  margin: var(--space-lg) 0;
  text-align: center;
  background: var(--bg-primary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
  max-width: 100%;
  position: relative;
}

figure::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}

figure::after {
  content: '';
  display: none; /* BBC avoids decorative icons */
}

figure:hover {
  box-shadow: var(--shadow-md);
}

figure img {
  margin: 0;
  border-radius: var(--radius-sm);
  border: none;
}

figcaption {
  margin-top: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.4;
  font-weight: 400;
  padding: var(--space-sm);
}

/* Special styling for different figure classes */
.featured-image {
  margin: 0 0 var(--space-lg);
  border: 1px solid var(--primary);
  box-shadow: var(--shadow-md);
}

.featured-image::before {
  height: 4px;
  background: var(--primary);
}

.featured-image::after {
  display: none;
}

.content-image {
  background: var(--bg-secondary);
}

.content-image::after {
  display: none;
}

/* Button Styles */
button, 
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: var(--bg-primary);
  color: var(--text-primary);
}

button:hover,
.btn:hover {
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
}

/* Form Elements */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  width: 100%;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(187, 25, 25, 0.2);
}

/* Card Components */
.card {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
}

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
}

/* Table Styling */
table {
  width: 100%;
  margin: var(--space-lg) 0;
  border-collapse: collapse;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: var(--space-md);
  text-align: left;
  font-weight: 600;
  font-size: 0.9rem;
}

td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

tr:hover {
  background: var(--bg-secondary);
}

tr:last-child td {
  border-bottom: none;
}

/* Blockquote Styling */
blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-secondary);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

blockquote::before {
  content: '';
  display: none; /* BBC avoids decorative quotes */
}

/* List Styling */
ul, ol {
  margin: var(--space-lg) 0;
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

ul li {
  list-style: disc;
  position: relative;
}

ul li::before {
  content: '';
  display: none; /* BBC uses standard list styles */
}

ol li {
  font-weight: 400;
}

strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* Code Styling */
code {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
  border: 1px solid var(--border-light);
}

pre {
  background: var(--bg-dark);
  color: #E0E0E0;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}

pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  border: none;
  font-size: 0.9rem;
}

/* Dividers */
hr {
  border: none;
  height: 1px;
  background: var(--border-light);
  margin: var(--space-lg) 0;
}

/* Utility Classes */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

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

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

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

/* Loading Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.loading {
  animation: pulse 1.5s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
  main {
    padding: var(--space-lg) var(--space-md);
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  img {
    margin: var(--space-md) 0;
  }
  
  figure {
    margin: var(--space-md) 0;
    padding: var(--space-sm);
  }
  
  blockquote {
    padding: var(--space-md);
    font-size: 0.95rem;
  }
  
  table {
    font-size: 0.85rem;
  }
  
  th, td {
    padding: var(--space-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
  }
  
  main {
    padding: var(--space-md);
  }
  
  ul, ol {
    padding-left: var(--space-md);
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #F5F5F5;
    --text-secondary: #D1D1D1;
    --text-muted: #A1A1A1;
    --bg-primary: #1A1A1A;
    --bg-secondary: #2C2C2C;
    --bg-tertiary: #3D3D3D;
    --border-light: #4A4A4A;
    --border-medium: #5E5E5E;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.6);
  }
  
  body {
    background: var(--bg-primary);
  }
}

/* Accessibility Enhancements */
@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;
  }
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  
  .card,
  img,
  figure {
    box-shadow: none !important;
  }
  
  figure::after {
    display: none !important;
  }
}