/* Root Variables */
:root {
  --color-primary: #4f46e5;
  --color-primary-dark: #3730a3;
  --color-primary-light: #818cf8;
  --color-secondary: #a21caf;
  --color-accent: #06b6d4;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-text: #0f172a;
  --color-text-light: #475569;
  --color-text-lighter: #94a3b8;
  --color-bg: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-lighter: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-light: #eef2f7;
  --color-code-bg: #0f172a;
  --color-code-text: #e2e8f0;
  --color-dark: #0a0a12;
  --color-dark-light: #17172b;

  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #a21caf 55%, #ec4899 100%);
  --gradient-primary-soft: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(162, 28, 175, 0.1));
  --gradient-primary-soft-hover: linear-gradient(135deg, rgba(79, 70, 229, 0.16), rgba(162, 28, 175, 0.16));

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.14);
  --shadow-glow: 0 12px 28px rgba(79, 70, 229, 0.28);

  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
}

h1 { font-size: 2.75rem; letter-spacing: -0.02em; }
h2 { font-size: 2.1rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Navigation */
.navbar {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
}

.navbar-brand {
  flex-shrink: 0;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: none;
  cursor: pointer;
  flex-shrink: 0;
}

.navbar-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background-color: var(--color-text);
  border-radius: 1px;
}

.navbar-collapse {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  flex: 1;
  min-width: 0;
}

.navbar-menu {
  list-style: none;
  display: flex;
  gap: var(--space-xl);
  flex: 1;
}

.navbar-menu a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  transition: color 0.2s;
}

.navbar-menu a:hover {
  color: var(--color-primary);
}

.navbar-search {
  display: flex;
  gap: 0;
  align-items: center;
  flex-shrink: 0;
}

.navbar-search input {
  padding: var(--space-sm) var(--space-md);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full) 0 0 var(--radius-full);
  width: 250px;
  background-color: var(--color-bg-light);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s, background-color 0.2s;
}

.navbar-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-bg);
}

.navbar-search .search-btn {
  padding: var(--space-sm) var(--space-md);
  border: 1.5px solid var(--color-border);
  border-left: none;
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
  background-color: var(--color-bg-light);
  color: var(--color-text);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s;
}

.navbar-search .search-btn:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.navbar-github {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text);
  transition: color 0.2s;
}

.navbar-github:hover {
  color: var(--color-primary);
}

/* Left Site Nav */
.site-nav-toggle {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-light);
  border: none;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--color-text);
}

.page-shell {
  display: flex;
  align-items: flex-start;
}

.site-nav {
  flex: 0 0 240px;
  width: 240px;
  background-color: var(--color-bg-light);
  border-right: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 72px);
  overflow-y: auto;
}

.site-nav-all {
  display: block;
  text-align: center;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
}

.site-nav-all:hover {
  color: white;
  opacity: 0.9;
}

.site-nav-tree {
  list-style: none;
}

.site-nav-category {
  margin-bottom: var(--space-xs);
}

.site-nav-cat-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  text-align: left;
}

.site-nav-cat-toggle:hover {
  background-color: var(--color-bg-lighter);
}

.site-nav-cat-toggle::after {
  content: '\203A';
  margin-left: auto;
  transition: transform 0.2s;
  color: var(--color-text-lighter);
}

.site-nav-category.open .site-nav-cat-toggle::after {
  transform: rotate(90deg);
}

.site-nav-cat-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-nav-count {
  font-size: 0.7rem;
  color: var(--color-text-lighter);
  font-weight: 500;
  flex-shrink: 0;
}

.site-nav-goals {
  list-style: none;
  display: none;
  padding-left: var(--space-md);
}

.site-nav-category.open .site-nav-goals {
  display: block;
}

.site-nav-goals li {
  margin: 1px 0;
}

.site-nav-goals a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.8rem;
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
}

.site-nav-goals a:hover {
  background-color: var(--color-bg-lighter);
  color: var(--color-primary);
}

.site-nav-goals a.active {
  background: var(--gradient-primary-soft);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.main-content {
  flex: 1;
  min-width: 0;
}

/* Hero Section */
.hero {
  position: relative;
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-3xl) 0;
  text-align: center;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.hero::before {
  width: 420px;
  height: 420px;
  background: rgba(255, 255, 255, 0.18);
  top: -180px;
  left: -120px;
}

.hero::after {
  width: 360px;
  height: 360px;
  background: rgba(6, 182, 212, 0.35);
  bottom: -200px;
  right: -100px;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: white;
  margin-top: 0;
  margin-bottom: var(--space-md);
  font-size: 3.25rem;
}

.tagline {
  font-size: 1.3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.95;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.search-container {
  display: flex;
  justify-content: center;
  margin-top: var(--space-lg);
  gap: 0;
}

.search-large {
  width: 100%;
  max-width: 600px;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-full) 0 0 var(--radius-full);
  background-color: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
}

.search-large:focus {
  outline: none;
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(255, 255, 255, 0.5);
}

.search-btn-large {
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
  background-color: var(--color-dark);
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
  font-size: 1rem;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.search-btn-large:hover {
  background-color: #000000;
}

.search-btn-large:active {
  transform: scale(0.98);
}

/* Stats Section */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-2xl) 0;
}

.stat-card {
  background-color: var(--color-bg);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-card h3 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 2.75rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
}

.stat-card p {
  margin: 0;
  color: var(--color-text-light);
  font-weight: 600;
  font-size: 0.95rem;
}

/* Pattern Cards */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.pattern-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
}

.pattern-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.pattern-card h3 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

.pattern-card h3 a {
  color: var(--color-text);
}

.pattern-card h3 a:hover {
  color: var(--color-primary);
}

.pattern-card .meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
  font-size: 0.8rem;
}

.pattern-card .excerpt {
  flex: 1;
  color: var(--color-text-light);
  font-size: 0.85rem;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.card-meta-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
  font-size: 0.8rem;
  line-height: 1.3;
}

.meta-label {
  font-weight: 700;
  color: var(--color-primary);
  min-width: 70px;
  flex-shrink: 0;
}

.meta-value {
  color: var(--color-text-light);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.card-issue {
  margin-bottom: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-warning);
  border-radius: var(--radius-sm);
}

.issue-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-size: 0.75rem;
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}

.card-footer .read-link {
  margin-left: auto;
  font-weight: 700;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background-color: var(--color-bg-lighter);
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge.frequency-rare {
  background-color: #dcfce7;
  color: #166534;
}

.badge.frequency-occasional {
  background-color: #fef3c7;
  color: #92400e;
}

.badge.frequency-common {
  background-color: #fed7aa;
  color: #9a3412;
}

.badge.frequency-very-common {
  background-color: #fecaca;
  color: #991b1b;
}

.badge.category-badge {
  background-color: #e0e7ff;
  color: var(--color-primary-dark);
}

.badge.goal-badge {
  background-color: #fae8ff;
  color: var(--color-secondary);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-xl);
  border: none;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(79, 70, 229, 0.35);
  color: white;
}

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

.btn-secondary:hover {
  background-color: #000000;
  color: white;
  transform: translateY(-2px);
}

.btn-small {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.85rem;
}

/* Category Links */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.category-link {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.25s;
  box-shadow: var(--shadow-sm);
}

.category-link:hover {
  background: var(--gradient-primary-soft);
  border-color: transparent;
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.category-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
}

.category-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-xs);
}

.category-desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-top: var(--space-xs);
}

.term-directory {
  margin-top: var(--space-xl);
}

/* Focus Areas */
.focus-areas .category-link {
  border-color: var(--color-border);
}

/* Call-to-action */
.cta {
  background: var(--color-dark);
  color: white;
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  margin: var(--space-3xl) 0;
}

.cta h2 {
  color: white;
  margin-top: 0;
}

.cta p {
  color: rgba(255, 255, 255, 0.7);
}

.readme-content {
  max-width: 860px;
  margin: 0 auto;
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.readme-content img {
  max-width: 100%;
  vertical-align: middle;
}

.readme-content table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

.readme-content pre {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.readme-content h1 {
  text-align: center;
}

.readme-content > blockquote:first-of-type {
  text-align: center;
  font-size: 1.15rem;
  border-left: none;
  color: var(--color-text-light);
}

/* 404 Page */
.error-page {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-3xl) 0;
  text-align: center;
}

.error-code {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0;
  line-height: 1;
}

.error-page h1 {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-md);
}

.error-message {
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.error-page .search-container {
  margin: 0 auto var(--space-xl);
}

.error-page .search-large {
  box-shadow: var(--shadow-md);
}

.error-page .search-btn-large {
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
}

.error-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.error-links a {
  padding: var(--space-xs) var(--space-lg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9rem;
}

.error-links a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.error-featured h2 {
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
}

/* Pattern View */
.pattern-view {
  padding: var(--space-2xl) 0;
}

.pattern-article {
  max-width: 900px;
  margin: 0 auto;
  background: white;
}

.pattern-header {
  margin-bottom: var(--space-3xl);
  border-bottom: none;
  padding-bottom: var(--space-xl);
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-lighter);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.breadcrumb a {
  color: var(--color-primary);
  font-weight: 600;
}

.pattern-header h1 {
  margin: var(--space-lg) 0;
  font-size: 2.4rem;
  color: var(--color-text);
  line-height: 1.25;
}

.pattern-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  row-gap: var(--space-sm);
  column-gap: var(--space-xl);
  margin-top: var(--space-lg);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.meta-flat {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.meta-flat-label {
  color: var(--color-text-lighter);
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.source-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.source-link:hover {
  text-decoration: underline;
}

.pattern-content {
  margin: var(--space-2xl) 0;
  line-height: 1.8;
  font-size: 1.05rem;
  color: var(--color-text);
}

.pattern-content h2 {
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.75rem;
  font-weight: 700;
}

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

.pattern-content h3 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: 700;
}

.pattern-content h4 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  font-size: 1.1rem;
  font-weight: 600;
}

.pattern-content p {
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.pattern-content strong {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.pattern-content em {
  color: var(--color-text-light);
  font-style: italic;
}

.pattern-content code {
  background-color: #fef3c7;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-warning);
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  color: #78350f;
  font-weight: 500;
}

.pattern-content pre {
  background-color: var(--color-code-bg);
  color: var(--color-code-text);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border-left: 5px solid var(--color-danger);
  overflow-x: auto;
  margin: var(--space-xl) 0;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  box-shadow: var(--shadow-md);
}

.pattern-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-code-text);
  font-size: 0.85rem;
}

.pattern-content pre code,
.pattern-content pre {
  display: block;
  max-width: 100%;
}

/* Ensure markdown pre blocks are always visible */
.pattern-content pre,
.pattern-content code {
  word-wrap: break-word;
  white-space: pre-wrap;
}

.pattern-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-lg);
  margin: var(--space-lg) 0;
  color: var(--color-text-light);
  font-style: italic;
  background-color: var(--color-bg-light);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
}

.pattern-content ul, .pattern-content ol {
  margin-left: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.pattern-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.8;
}

.pattern-content li strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.pattern-content table {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: 0.95rem;
}

.pattern-content table th {
  background-color: var(--color-bg-lighter);
  padding: var(--space-md);
  text-align: left;
  font-weight: 700;
  border-bottom: 2px solid var(--color-primary);
  color: var(--color-text);
}

.pattern-content table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
}

.pattern-content table tr:hover {
  background-color: var(--color-bg-light);
}

/* Example blocks */
.pattern-content > blockquote:has(strong:contains("Example")) {
  background-color: #fffbf0;
  border-left-color: var(--color-warning);
}

/* Table of Contents */
.toc {
  background: var(--color-bg-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  border-left: 4px solid var(--color-primary);
}

.toc h3 {
  margin-top: 0;
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
  color: var(--color-primary);
  font-weight: 700;
}

.toc ul {
  list-style: none;
  margin-left: 0;
}

.toc li {
  margin: var(--space-xs) 0;
}

.toc a {
  font-size: 0.95rem;
  color: var(--color-primary);
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.toc a:hover {
  background-color: var(--color-bg);
  color: var(--color-primary-dark);
}

/* Sources Section */
.sources {
  background: var(--color-bg-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
  margin: var(--space-3xl) 0;
}

.sources h2 {
  margin-top: 0;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
  font-size: 1.5rem;
}

.sources ul {
  list-style: none;
  margin-left: 0;
}

.sources li {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  padding-left: var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary-light);
  background-color: white;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.sources li:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.sources li a {
  font-weight: 700;
  color: var(--color-primary);
}

.sources li:last-child {
  margin-bottom: 0;
}

.authors {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-lighter);
  margin-top: var(--space-sm);
  font-style: italic;
}

/* Sidebar */
.sidebar {
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 2px solid var(--color-border);
}

.sidebar section {
  margin-bottom: var(--space-2xl);
}

.sidebar h3 {
  font-size: 1.1rem;
}

.related-patterns {
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 2px solid var(--color-border);
}

.related-patterns ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-sm);
}

.related-patterns li {
  margin-bottom: var(--space-sm);
}

.related-patterns a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all 0.2s;
}

.related-patterns a:hover {
  background: var(--gradient-primary);
  color: white;
}

/* Feedback */
.feedback {
  background-color: var(--color-bg-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.feedback-buttons {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.btn-feedback {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-feedback:hover {
  background-color: var(--color-bg);
  border-color: var(--color-primary);
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  border-top: none;
  padding: var(--space-2xl) 0;
  margin-top: var(--space-2xl);
  color: rgba(255, 255, 255, 0.6);
}

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

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

.footer a {
  color: rgba(255, 255, 255, 0.75);
}

.footer a:hover {
  color: white;
}

/* Patterns List View */
.patterns-list-view {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.filters {
  background-color: var(--color-bg-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.filter-group {
  margin-bottom: var(--space-lg);
}

.filter-group h4 {
  margin-top: 0;
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  cursor: pointer;
  font-size: 0.9rem;
}

.checkbox input {
  cursor: pointer;
}

.checkbox .count {
  color: var(--color-text-light);
  margin-left: auto;
}

.sort-select {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: white;
}

.pattern-list-item {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s;
}

.pattern-list-item:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.pattern-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.pattern-item-header h2 {
  margin: 0;
  flex: 1;
  font-size: 1.5rem;
}

.pattern-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: flex-end;
}

.issue {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pattern-list-item mark,
.issue mark {
  background-color: #fef08a;
  color: inherit;
  border-radius: 2px;
  padding: 0 0.1em;
}

.summary {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.pattern-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.read-more {
  color: var(--color-primary);
  font-weight: 700;
}

/* Taxonomy View */
.taxonomy-view {
  display: block;
  margin-top: var(--space-2xl);
}

.taxonomy-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid var(--color-border);
}

.taxonomy-description {
  max-width: 760px;
  margin: 0 auto var(--space-2xl);
}

.taxonomy-description > p:first-child {
  color: var(--color-text-light);
  font-size: 1.1rem;
}

.taxonomy-description h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: none;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-lighter);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.taxonomy-description h2:first-of-type {
  margin-top: var(--space-xl);
}

.taxonomy-description h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.05rem;
}

.taxonomy-columns {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
}

.taxonomy-content {
  flex: 1;
  min-width: 0;
}

.taxonomy-sidebar {
  flex: 0 0 260px;
  width: 260px;
  background-color: var(--color-bg-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  position: sticky;
  top: calc(72px + var(--space-lg));
}

.all-categories ul {
  list-style: none;
}

.all-categories li {
  margin-bottom: var(--space-sm);
}

.all-categories a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.all-categories a:hover {
  background-color: var(--color-bg);
}

/* Responsive */
@media (max-width: 900px) {
  .navbar-toggle {
    display: flex;
  }

  .navbar-collapse {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg) var(--space-md) var(--space-xl);
    box-shadow: var(--shadow-lg);
  }

  .navbar-collapse.open {
    display: flex;
  }

  .navbar-menu {
    flex-direction: column;
    gap: var(--space-md);
  }

  .navbar-search,
  .navbar-search input {
    width: 100%;
  }

  .navbar-github {
    align-self: flex-start;
  }

  /* Left site nav collapses off-canvas; reveal via the toggle button,
     stacked full-width above the page content rather than a side column. */
  .site-nav-toggle {
    display: flex;
  }

  .page-shell {
    flex-direction: column;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-basis: auto;
    position: static;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav.open {
    display: block;
  }

  /* Stack the sidebar (goals/categories index) full-width below the
     results below this width instead of a side-by-side column. */
  .taxonomy-columns {
    flex-direction: column;
  }

  .taxonomy-sidebar {
    flex-basis: auto;
    width: auto;
    position: static;
  }
}

@media (max-width: 480px) {
  .pattern-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  h1 { font-size: 1.85rem; }
  h2 { font-size: 1.5rem; }

  .hero h1 { font-size: 2.1rem; }

  .patterns-list-view {
    grid-template-columns: 1fr;
  }

  .filters {
    position: static;
  }

  .pattern-item-header {
    flex-direction: column;
  }

  .pattern-badges {
    justify-content: flex-start;
  }

  /* The 4rem + 1.5rem left indent used for lists in pattern bodies is fine
     on desktop but leaves too little room on a phone-width screen and
     causes real horizontal overflow — tighten it here instead. */
  .pattern-content ul,
  .pattern-content ol {
    margin-left: 0;
    padding-left: var(--space-lg);
  }
}