:root {
  /* Terracotta Social Story Palette */
  --bg-canvas: #faf6ef;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f0ebe1;
  --accent-primary: #c2562e;
  --accent-primary-hover: #a34623;
  --accent-secondary: #6b7a3a;
  --text-primary: #2b211a;
  --text-muted: #5e5149;
  --border-color: #e3dcd1;

  /* Typography */
  --font-family: 'Trebuchet MS', 'Segoe UI', sans-serif;
  --line-height-body: 1.8;
  --line-height-heading: 1.2;

  /* Spacing & Layout */
  --max-width: 1200px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  /* Depth (Flat UI as requested, minimal shadow for overlap clarity only) */
  --shadow-flat: 0 4px 0 rgba(0,0,0,0.05);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: var(--line-height-body);
  overflow-wrap: anywhere;
  hyphens: auto;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  object-fit: cover;
  border-radius: 0; /* Square images strictly */
}

a {
  color: inherit;
  text-decoration: none;
}

/* Typography */
h1, h2, h3, h4 {
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: var(--spacing-md); }

/* Top Bar */
.top-bar {
  background-color: var(--text-primary);
  color: var(--bg-canvas);
  font-size: 0.85rem;
  text-align: center;
  padding: 0.4rem;
  font-weight: bold;
}

/* Header */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--border-color);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-brand {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--accent-primary);
  text-transform: uppercase;
}

/* Navigation */
.desktop-nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.desktop-nav a.nav-link {
  font-weight: bold;
  color: var(--text-primary);
}

/* Underline Hover for Text Links */
.link-hover {
  position: relative;
  display: inline-block;
}

.link-hover::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -2px;
  left: 0;
  background-color: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform 0.3s ease-out;
}

.link-hover:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Mobile Nav */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0.5rem;
}

.mobile-nav-overlay {
  display: none;
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--border-color);
  padding: var(--spacing-lg);
}

.mobile-nav-overlay.is-active {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Buttons */
.btn-main {
  display: inline-block;
  background-color: var(--accent-primary);
  color: var(--bg-surface);
  padding: 0.75rem 1.5rem;
  font-weight: bold;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease;
  border-radius: 0; /* Square */
}

.btn-main:hover {
  background-color: var(--accent-primary-hover);
}

/* Layout Containers */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.reading-width {
  max-width: 72ch;
  margin: 0 auto;
}

/* Hero Section - Short Band */
.hero-band {
  background-color: var(--bg-surface);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  border-bottom: 2px solid var(--border-color);
}

.hero-band h1 {
  margin: 0 auto;
  max-width: 800px;
  color: var(--text-primary);
}

/* Stats Strip */
.stats-strip {
  background-color: var(--text-primary);
  color: var(--bg-canvas);
  padding: var(--spacing-lg) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--accent-secondary);
  margin-bottom: 0.2rem;
}

.stat-item p {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
}

/* Tabbed Sections (Deep Dives) */
.tab-section {
  padding: var(--spacing-xl) 0;
}

.tab-controls {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border-color);
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  padding: 1rem 2rem;
  font-family: inherit;
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
}

.tab-btn.active {
  color: var(--text-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--accent-primary);
}

.tab-content {
  display: none;
  background-color: var(--bg-surface);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

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

/* Toolkit Cards */
.toolkit-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--bg-surface-alt);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.card-media {
  position: relative;
  aspect-ratio: 4 / 3;
}

.card-media img {
  width: 100%;
  height: 100%;
}

.card-badge {
  position: absolute;
  bottom: -20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background-color: var(--accent-secondary);
  color: var(--bg-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.85rem;
  text-transform: uppercase;
  border: 4px solid var(--bg-surface);
}

.card-content {
  padding: 2.5rem var(--spacing-lg) var(--spacing-lg);
  flex-grow: 1;
}

/* Content Pages */
.page-header {
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-xl);
}

.page-header h1 {
  color: var(--accent-primary);
}

.content-block {
  margin-bottom: var(--spacing-xl);
}

/* Avatar / Authors */
.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.author-block {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-surface-alt);
}

/* Accordion (FAQ) */
.accordion {
  border-top: 1px solid var(--border-color);
}
.accordion-item {
  border-bottom: 1px solid var(--border-color);
}
.accordion-header {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: var(--spacing-lg) 0;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  font-family: inherit;
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.accordion-content-inner {
  padding-bottom: var(--spacing-lg);
  color: var(--text-muted);
}

/* Campaign Brief Generator Tool */
.tool-panel {
  background-color: var(--bg-surface);
  padding: var(--spacing-xl);
  border: 1px solid var(--border-color);
  margin-top: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  font-family: inherit;
  font-size: 1rem;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
}

.form-control:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: -1px;
}

.tool-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

#tool-output {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background-color: var(--bg-surface-alt);
  white-space: pre-wrap;
  font-family: monospace;
  display: none;
  border: 1px solid var(--border-color);
}

/* Footer */
.site-footer {
  background-color: var(--text-primary);
  color: var(--bg-surface);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
  color: var(--accent-secondary);
  margin-bottom: var(--spacing-md);
}

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

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--bg-canvas);
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-col a:hover {
  opacity: 1;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-form input {
  padding: 0.5rem;
  border: none;
  flex-grow: 1;
  font-family: inherit;
}

.newsletter-form button {
  padding: 0.5rem 1rem;
  background-color: var(--accent-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: bold;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

.footer-legal-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  background-color: var(--bg-surface);
}

th, td {
  padding: 1rem;
  text-align: left;
  border: 1px solid var(--border-color);
}

th {
  background-color: var(--bg-surface-alt);
  font-weight: bold;
}

/* Scroll Reveal Classes */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Media Queries */
@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-band h1 {
    font-size: 2rem;
  }
  .tab-controls {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.5rem;
  }
  .tab-btn {
    white-space: nowrap;
    padding: 0.75rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}