/* ==========================================================================
   slash23dot Bazel Registry — Design System
   Inspired by registry.patterneddesigns.ca + Terraform Registry
   ========================================================================== */

:root {
  /* Primary palette — teal, matching patterneddesigns.ca */
  --primary: #0f6e82;
  --primary-hover: #1fa2b8;
  --primary-light: #178ca3;
  --primary-bg: rgba(15, 110, 130, 0.08);
  --primary-bg-strong: rgba(15, 110, 130, 0.14);

  /* Surfaces */
  --surface: #ffffff;
  --surface-alt: #f0fafb;
  --surface-raised: #ffffff;
  --bg-gradient-start: #e6f6f9;
  --bg-gradient-end: #cfecef;

  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #4b5563;
  --text-muted: #64748b;

  /* Borders & shadows */
  --border: #e5e7eb;
  --border-hover: #0f6e82;
  --shadow-sm: 0 1px 3px rgba(15, 110, 130, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 110, 130, 0.1);
  --shadow-lg: 0 8px 24px rgba(15, 110, 130, 0.12);
  --shadow-card: 0 2px 8px rgba(15, 110, 130, 0.06);

  /* Semantic */
  --success: #059669;
  --success-bg: #d1fae5;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --danger: #dc2626;
  --info: #0550ae;
  --info-bg: #dbeafe;
  --purple: #7c3aed;
  --purple-bg: #ede9fe;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Spacing & radius */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 12px;
  --container-width: 1080px;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  background-attachment: fixed;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

code {
  background: var(--primary-bg);
  color: var(--primary);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  overflow-x: auto;
  margin: 0;
}

pre code {
  background: none;
  color: var(--text-primary);
  padding: 0;
  font-size: 0.9em;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
}

.site-logo:hover {
  color: var(--primary);
  text-decoration: none;
}

.logo-icon {
  color: var(--primary);
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}

.nav-link:hover {
  background: var(--primary-bg);
  color: var(--primary);
  text-decoration: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: 4rem;
  padding: 1.5rem 0;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
}

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

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

.footer-sep {
  color: var(--text-muted);
  opacity: 0.4;
}

.footer-copy {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  text-align: center;
  padding: 3.5rem 0 2.5rem;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 0.3em 0.8em;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin: 0 0 1.75rem;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s;
}

.btn:hover {
  background: var(--surface-alt);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 0.625rem 1.5rem;
  font-size: 0.9375rem;
  border-radius: var(--radius);
}

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
}

/* ==========================================================================
   Intent Cards (Homepage)
   ========================================================================== */

.home-intent {
  padding: 0 0 2rem;
}

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

.intent-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.intent-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.intent-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--primary-bg);
  border-radius: var(--radius);
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.intent-card-content h3 {
  margin: 0 0 0.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.intent-card-content p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.intent-card-detail {
  margin-top: 0.75rem;
}

.intent-domain {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 0.3em 0.6em;
  border-radius: 4px;
}

/* ==========================================================================
   Code Blocks with Copy Button
   ========================================================================== */

.code-block {
  position: relative;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 2.5rem 0.625rem 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.code-block code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

.code-block-full {
  padding: 0;
}

.code-block-full pre {
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
}

.code-block-full .copy-btn {
  top: 0.5rem;
  transform: none;
}

.copy-btn {
  position: absolute;
  top: 50%;
  right: 0.5rem;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
}

.code-block:hover .copy-btn,
.code-block-full:hover .copy-btn {
  opacity: 1;
}

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

.copy-btn.copied {
  opacity: 1;
  color: var(--success);
}

/* ==========================================================================
   Module Cards
   ========================================================================== */

.module-grid {
  display: grid;
  gap: 0.75rem;
}

.module-list {
  display: grid;
  gap: 0.75rem;
}

.module-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1.25rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  text-decoration: none;
}

.module-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateX(2px);
  text-decoration: none;
  color: var(--text-primary);
}

.module-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-bg);
  border-radius: var(--radius);
  color: var(--primary);
  flex-shrink: 0;
}

.module-card-body {
  flex: 1;
  min-width: 0;
}

.module-card-body h2,
.module-card-body h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 600;
}

.module-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.module-card-header h2 {
  margin: 0;
}

.module-card-arrow {
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s, transform 0.15s;
  flex-shrink: 0;
}

.module-card:hover .module-card-arrow {
  opacity: 1;
  transform: translateX(2px);
}

.module-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.module-meta svg {
  opacity: 0.6;
}

.maintainer {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.module-stat {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.version-count {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* ==========================================================================
   Badges
   ========================================================================== */

.version-badge {
  display: inline-block;
  background: var(--primary-bg);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15em 0.5em;
  border-radius: 4px;
}

.version-badge-lg {
  font-size: 0.875rem;
  padding: 0.2em 0.6em;
}

.badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.15em 0.5em;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-published {
  background: var(--success-bg);
  color: var(--success);
}

.badge-latest {
  background: var(--primary-bg-strong);
  color: var(--primary);
}

.badge-yanked {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge-rule {
  background: var(--info-bg);
  color: var(--info);
}

.badge-function {
  background: var(--purple-bg);
  color: var(--purple);
}

.badge-compat {
  background: var(--surface-alt);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: 0;
}

/* ==========================================================================
   Page Header
   ========================================================================== */

.page-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--primary-bg);
  border-radius: var(--radius-lg);
  color: var(--primary);
  flex-shrink: 0;
}

.page-header h1 {
  margin: 0;
  font-size: 1.75rem;
}

.section-description {
  margin: 0.25rem 0 0;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 0.75rem 0;
}

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

.breadcrumb a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.breadcrumb-sep {
  opacity: 0.4;
  display: flex;
  align-items: center;
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* ==========================================================================
   Module Header (detail pages)
   ========================================================================== */

.module-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.module-header-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--primary-bg);
  border-radius: var(--radius-lg);
  color: var(--primary);
  flex-shrink: 0;
}

.module-header-text h1 {
  margin: 0;
  font-size: 1.5rem;
}

.module-header-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.375rem;
}

/* ==========================================================================
   Module Detail Grid (main + sidebar)
   ========================================================================== */

.module-detail-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  align-items: start;
}

/* ==========================================================================
   Detail Sections
   ========================================================================== */

.detail-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-card);
}

.detail-section-header {
  margin-bottom: 1rem;
}

.detail-section-header h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.detail-section-header h3 svg {
  color: var(--primary);
  flex-shrink: 0;
}

.detail-section p {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Version Cards
   ========================================================================== */

.version-list {
  display: grid;
  gap: 0.5rem;
}

.version-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.version-card:hover {
  border-color: var(--primary);
  transform: translateX(2px);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.version-card-latest {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.version-card-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.version-card-number {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.875rem;
}

.version-card-arrow {
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s;
}

.version-card:hover .version-card-arrow {
  opacity: 1;
}

/* ==========================================================================
   Dependency Cards
   ========================================================================== */

.deps-list {
  display: grid;
  gap: 0.5rem;
}

.dep-card {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 0.875rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.dep-card-icon {
  color: var(--primary);
  opacity: 0.6;
}

.dep-name {
  font-weight: 600;
  background: none;
  color: var(--text-primary);
  padding: 0;
}

.empty-inline {
  padding: 0.75rem 1rem;
  background: var(--surface-alt);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}

.empty-inline p {
  margin: 0;
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.8125rem;
}

/* ==========================================================================
   API Reference
   ========================================================================== */

.api-subsection {
  margin-bottom: 1.25rem;
}

.api-subsection h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 0.5rem;
}

.api-entry {
  padding: 1rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
}

.api-entry-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.api-entry-name {
  font-size: 0.9375rem;
  font-weight: 600;
  background: none;
  color: var(--text-primary);
  padding: 0;
}

.api-entry-doc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin: 0.5rem 0 0;
}

/* Parameter cards */
.params-grid {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.param-card {
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.param-card-required {
  border-left: 3px solid var(--primary);
  background: linear-gradient(90deg, var(--primary-bg), var(--surface));
}

.param-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.param-name {
  font-weight: 600;
  font-size: 0.8125rem;
  background: none;
  color: var(--text-primary);
  padding: 0;
}

.param-type {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 0.1em 0.4em;
  border-radius: 3px;
}

.param-required {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.param-doc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.module-sidebar {
  position: sticky;
  top: 72px;
}

.sidebar-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-card);
}

.sidebar-section h4 {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.sidebar-section h4 svg {
  opacity: 0.6;
}

.sidebar-section dl {
  margin: 0;
}

.sidebar-section dt {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

.sidebar-section dt:first-child {
  margin-top: 0;
}

.sidebar-section dd {
  margin: 0.2rem 0 0;
  font-size: 0.8125rem;
}

.sidebar-section dd a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  word-break: break-all;
}

.api-path {
  font-size: 0.75rem !important;
  word-break: break-all;
  color: var(--text-secondary) !important;
  background: var(--surface-alt) !important;
}

.integrity {
  font-size: 0.65rem !important;
  word-break: break-all;
}

.maintainer-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--primary-bg);
  padding: 0.15em 0.5em;
  border-radius: 4px;
  font-size: 0.8125rem;
}

.maintainer-tag svg {
  opacity: 0.6;
}

/* ==========================================================================
   Section Headers (homepage)
   ========================================================================== */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-header h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 1.25rem;
}

.section-header h2 svg {
  color: var(--primary);
}

.count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 20px;
  padding: 0 0.375rem;
}

.section-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary);
}

.section-link:hover {
  text-decoration: none;
  color: var(--primary-hover);
}

/* ==========================================================================
   Home Modules
   ========================================================================== */

.home-modules {
  padding: 1rem 0 2rem;
}

/* ==========================================================================
   Tables
   ========================================================================== */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

th, td {
  text-align: left;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--surface-alt);
}

/* ==========================================================================
   Empty State
   ========================================================================== */

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.empty-state svg {
  opacity: 0.3;
  margin-bottom: 1rem;
}

.empty-state p {
  font-size: 1rem;
}

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

/* ==========================================================================
   Responsive
   ========================================================================== */

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

  .module-sidebar {
    position: static;
  }

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

  .module-header-icon {
    width: 44px;
    height: 44px;
  }

  .module-header-icon svg {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .page-header-icon {
    display: none;
  }

  .detail-section {
    padding: 1rem;
  }
}