/* ============================================
   Local Drills — Design System v2
   Inspired by cloud.ehq.cl palette (deep navy,
   teal accents) blended with the original brand.
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Core palette — deep navy (inspired by cloud.ehq.cl) */
  --color-bg: #0B1224;
  --color-bg-elevated: #0E1630;
  --color-surface: #121E3A;
  --color-surface-hover: #162550;
  --color-surface-active: #1A2D5C;
  --color-border: #1E3260;
  --color-border-light: #264080;

  /* Text */
  --color-text: #B9D2F4;
  --color-text-muted: #6882AB;
  --color-text-bright: #E8F0FE;
  --color-white: #FFFFFF;

  /* Brand — pink stays for header/branding only */
  --color-brand: #E91E78;
  --color-brand-dark: #C2185B;
  --gradient-header: linear-gradient(135deg, #E91E78 0%, #9C27B0 50%, #6A1B9A 100%);

  /* Interactive accent — teal/cyan (from cloud.ehq.cl) */
  --color-accent: #16A3FE;
  --color-accent-hover: #3DB8FF;
  --color-accent-muted: rgba(22, 163, 254, 0.15);
  --color-accent-glow: rgba(22, 163, 254, 0.25);

  /* Secondary accent — green (from cloud.ehq.cl) */
  --color-success: #23C99D;
  --color-success-muted: rgba(35, 201, 157, 0.15);

  /* Section colors */
  --color-aws: #FF9900;
  --color-aws-muted: rgba(255, 153, 0, 0.12);
  --color-kubernetes: #326CE5;
  --color-kubernetes-muted: rgba(50, 108, 229, 0.12);
  --color-gitlab: #FC6D26;
  --color-gitlab-muted: rgba(252, 109, 38, 0.12);

  /* Difficulty */
  --color-beginner: #23C99D;
  --color-intermediate: #FFB86C;
  --color-advanced: #FF6B6B;

  /* Status */
  --color-complete: #23C99D;
  --color-incomplete: #FFB86C;
  --color-stub: #6882AB;

  /* Code */
  --color-code-bg: #0A0F1E;
  --color-code-header: #0D1428;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-wrap: break-word;
}

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

a:hover {
  color: var(--color-accent-hover);
}

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --- Header --- */
.site-header {
  background: var(--gradient-header);
  padding: var(--space-md) var(--space-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 4px 30px rgba(107, 27, 154, 0.4);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.01em;
}

.logo:hover {
  color: var(--color-white);
  opacity: 0.92;
}

.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3)) brightness(0) invert(1);
}

.header-count {
  background: rgba(255, 255, 255, 0.18);
  color: var(--color-white);
  padding: 3px 12px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}

.header-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

/* --- Main Content --- */
main {
  flex: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  width: 100%;
}

/* View transitions */
.view-enter {
  animation: viewEnter 300ms cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes viewEnter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.loading {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
  font-size: var(--text-lg);
}

.loading::after {
  content: '';
  display: block;
  width: 32px;
  height: 32px;
  margin: var(--space-md) auto 0;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Section Stats --- */
.section-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.stat-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.stat-card[data-section="aws"] {
  border-top: 3px solid var(--color-aws);
}

.stat-card[data-section="aws"]:hover {
  box-shadow: 0 8px 24px rgba(255, 153, 0, 0.12);
}

.stat-card[data-section="kubernetes"] {
  border-top: 3px solid var(--color-kubernetes);
}

.stat-card[data-section="kubernetes"]:hover {
  box-shadow: 0 8px 24px rgba(50, 108, 229, 0.12);
}

.stat-card[data-section="gitlab"] {
  border-top: 3px solid var(--color-gitlab);
}

.stat-card[data-section="gitlab"]:hover {
  box-shadow: 0 8px 24px rgba(252, 109, 38, 0.12);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  flex-shrink: 0;
}

.stat-card[data-section="aws"] .stat-icon {
  background: var(--color-aws-muted);
  color: var(--color-aws);
}

.stat-card[data-section="kubernetes"] .stat-icon {
  background: var(--color-kubernetes-muted);
  color: var(--color-kubernetes);
}

.stat-card[data-section="gitlab"] .stat-icon {
  background: var(--color-gitlab-muted);
  color: var(--color-gitlab);
}

.stat-info {
  min-width: 0;
}

.stat-count {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-bright);
  line-height: 1.2;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- Catalog View --- */
.catalog-header {
  margin-bottom: var(--space-xl);
}

.catalog-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-bright);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.catalog-subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  align-items: center;
}

.search-wrapper {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
  font-size: var(--text-sm);
}

.search-input {
  width: 100%;
  padding: 10px 36px 10px 36px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

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

.search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 4px 6px;
  font-size: var(--text-sm);
  border-radius: 4px;
  display: none;
  transition: color var(--transition-fast);
}

.search-clear.visible {
  display: block;
}

.search-clear:hover {
  color: var(--color-text-bright);
}

.filter-select {
  padding: 10px var(--space-xl) 10px var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236882AB' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: all var(--transition-fast);
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

/* Active filter chips */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--color-accent-muted);
  border: 1px solid rgba(22, 163, 254, 0.3);
  border-radius: 20px;
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
}

.filter-chip-remove {
  background: none;
  border: none;
  color: var(--color-accent);
  cursor: pointer;
  font-size: 1em;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.filter-chip-remove:hover {
  opacity: 1;
}

.results-count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* Tag cloud — collapsible */
.tag-cloud {
  margin-bottom: var(--space-lg);
}

.tag-cloud-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--space-sm);
}

.tag-cloud-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.tag-cloud-toggle .arrow {
  transition: transform var(--transition-fast);
  font-size: 0.7em;
}

.tag-cloud-toggle.expanded .arrow {
  transform: rotate(180deg);
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth), opacity var(--transition-base);
  opacity: 0;
}

.tag-filters.expanded {
  max-height: 600px;
  opacity: 1;
  padding-top: var(--space-sm);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Drill Card */
.drill-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border-left: 4px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
}

.drill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.drill-card:hover {
  background: var(--color-surface-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.drill-card:hover::before {
  opacity: 1;
}

.drill-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.drill-card[data-section="aws"] {
  border-left-color: var(--color-aws);
}

.drill-card[data-section="aws"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 153, 0, 0.15);
}

.drill-card[data-section="kubernetes"] {
  border-left-color: var(--color-kubernetes);
}

.drill-card[data-section="kubernetes"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(50, 108, 229, 0.15);
}

.drill-card[data-section="gitlab"] {
  border-left-color: var(--color-gitlab);
}

.drill-card[data-section="gitlab"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(252, 109, 38, 0.15);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.card-name {
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text-bright);
  flex: 1;
  min-width: 0;
}

.card-description {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-sm);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.card-file-count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.badge-section {
  color: var(--color-bg);
}

.badge-section[data-section="aws"] {
  background: var(--color-aws);
}

.badge-section[data-section="kubernetes"] {
  background: var(--color-kubernetes);
  color: var(--color-white);
}

.badge-section[data-section="gitlab"] {
  background: var(--color-gitlab);
}

.badge-difficulty {
  border: 1px solid;
}

.badge-difficulty[data-difficulty="beginner"] {
  color: var(--color-beginner);
  border-color: rgba(35, 201, 157, 0.4);
  background: rgba(35, 201, 157, 0.08);
}

.badge-difficulty[data-difficulty="intermediate"] {
  color: var(--color-intermediate);
  border-color: rgba(255, 184, 108, 0.4);
  background: rgba(255, 184, 108, 0.08);
}

.badge-difficulty[data-difficulty="advanced"] {
  color: var(--color-advanced);
  border-color: rgba(255, 107, 107, 0.4);
  background: rgba(255, 107, 107, 0.08);
}

.badge-status {
  font-size: var(--text-xs);
  font-weight: 500;
}

.badge-status[data-status="complete"] {
  color: var(--color-complete);
}

.badge-status[data-status="incomplete"] {
  color: var(--color-incomplete);
}

.badge-status[data-status="stub"] {
  color: var(--color-stub);
}

/* Tag pills */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  background: var(--color-accent-muted);
  color: var(--color-accent);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.tag:hover {
  background: rgba(22, 163, 254, 0.25);
  border-color: rgba(22, 163, 254, 0.3);
}

.tag.active {
  background: var(--color-accent);
  color: var(--color-white);
}

/* No results */
.no-results {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.no-results-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

/* --- Drill Detail View --- */
.drill-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  min-width: 0;
}

.drill-detail > * {
  min-width: 0;
}

@media (min-width: 900px) {
  .drill-detail {
    grid-template-columns: 1fr 280px;
  }
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

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

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

.breadcrumb-sep {
  color: var(--color-border-light);
}

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

/* Detail header */
.detail-header {
  margin-bottom: var(--space-xl);
}

.detail-name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-bright);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.detail-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.detail-description {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.tab-btn {
  padding: var(--space-sm) var(--space-lg);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 200ms ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Markdown content */
.markdown-body {
  line-height: 1.7;
  color: var(--color-text);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  color: var(--color-text-bright);
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
}

.markdown-body h1 { font-size: 1.5em; }
.markdown-body h2 {
  font-size: 1.3em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--color-border);
}
.markdown-body h3 { font-size: 1.1em; }

.markdown-body p {
  margin-bottom: 1em;
}

.markdown-body ul,
.markdown-body ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
}

.markdown-body li {
  margin-bottom: 0.3em;
}

.markdown-body li + li {
  margin-top: 0.2em;
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-code-bg);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

.markdown-body pre {
  margin-bottom: 1em;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.markdown-body pre code {
  background: none;
  padding: 0;
  border: none;
}

.markdown-body a {
  color: var(--color-accent);
}

.markdown-body a:hover {
  text-decoration: underline;
}

.markdown-body strong {
  color: var(--color-text-bright);
  font-weight: 600;
}

.markdown-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-md);
  color: var(--color-text-muted);
  margin-bottom: 1em;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1.5em 0;
}

/* Code blocks with copy button */
.code-block-wrapper {
  position: relative;
  margin-bottom: 1em;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px var(--space-md);
  background: var(--color-code-header);
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.code-block-wrapper pre {
  margin: 0;
  border-radius: 0;
}

.code-block-wrapper pre code {
  display: block;
  padding: var(--space-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  background: var(--color-code-bg);
}

.copy-btn {
  padding: 3px 12px;
  background: rgba(22, 163, 254, 0.1);
  border: 1px solid rgba(22, 163, 254, 0.2);
  border-radius: 4px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  background: rgba(22, 163, 254, 0.2);
  border-color: rgba(22, 163, 254, 0.4);
}

.copy-btn.copied {
  color: var(--color-success);
  border-color: rgba(35, 201, 157, 0.4);
  background: rgba(35, 201, 157, 0.1);
}

/* File tabs */
.file-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  margin-bottom: 0;
}

.file-tab-btn {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.file-tab-btn:hover {
  color: var(--color-text);
}

.file-tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  background: var(--color-code-bg);
}

.file-content {
  display: none;
}

.file-content.active {
  display: block;
}

/* Solution spoiler */
.spoiler-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-lg);
  background: linear-gradient(135deg, rgba(22, 163, 254, 0.12), rgba(35, 201, 157, 0.12));
  border: 1px solid rgba(22, 163, 254, 0.25);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-bottom: var(--space-lg);
}

.spoiler-btn:hover {
  background: linear-gradient(135deg, rgba(22, 163, 254, 0.2), rgba(35, 201, 157, 0.2));
  border-color: rgba(22, 163, 254, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(22, 163, 254, 0.15);
}

.spoiler-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 500ms cubic-bezier(0.4, 0, 0.2, 1),
              opacity 300ms ease;
}

.spoiler-content.revealed {
  max-height: 50000px;
  opacity: 1;
}

/* Sidebar */
.detail-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.sidebar-title {
  font-weight: 600;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.sidebar-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: var(--text-sm);
}

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

.sidebar-item-value {
  color: var(--color-text);
  font-weight: 500;
}

.sidebar-link {
  display: block;
  padding: 6px 0;
  color: var(--color-accent);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.sidebar-link:hover {
  color: var(--color-accent-hover);
}

.setup-step {
  margin-bottom: var(--space-md);
}

.setup-step:last-child {
  margin-bottom: 0;
}

.setup-step-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

.setup-step .code-block-wrapper {
  margin-bottom: 0;
}

.setup-step .code-block-wrapper pre code {
  font-size: 11px;
  padding: var(--space-sm) var(--space-md);
  white-space: pre;
  word-break: normal;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-weight: 500;
}

.back-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-muted);
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  background: var(--color-bg-elevated);
}

.footer-inner {
  max-width: 1320px;
  margin: 0 auto;
}

.site-footer p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.footer-sub {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  color: var(--color-border-light);
}

/* --- Utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
  font-style: italic;
}

/* --- Quiz Components --- */

/* Quiz catalog filters */
.quiz-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  align-items: center;
}

.quiz-back-link {
  margin-left: auto;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.quiz-back-link:hover {
  color: var(--color-accent);
}

/* Quiz card */
.quiz-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-smooth);
  border-left: 4px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  position: relative;
  overflow: hidden;
}

.quiz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.quiz-card:hover {
  background: var(--color-surface-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.quiz-card:hover::before {
  opacity: 1;
}

.quiz-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.quiz-card[data-section="aws"] { border-left-color: var(--color-aws); }
.quiz-card[data-section="kubernetes"] { border-left-color: var(--color-kubernetes); }
.quiz-card[data-section="gitlab"] { border-left-color: var(--color-gitlab); }

.quiz-card[data-section="aws"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 153, 0, 0.15);
}
.quiz-card[data-section="kubernetes"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(50, 108, 229, 0.15);
}
.quiz-card[data-section="gitlab"]:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(252, 109, 38, 0.15);
}

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

.quiz-q-count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.quiz-type-breakdown {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.quiz-type-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.quiz-type-tag[data-type="diagnose"] {
  border-color: rgba(22, 163, 254, 0.3);
  color: var(--color-accent);
  background: rgba(22, 163, 254, 0.08);
}

.quiz-type-tag[data-type="complete"] {
  border-color: rgba(35, 201, 157, 0.3);
  color: var(--color-success);
  background: rgba(35, 201, 157, 0.08);
}

.quiz-type-tag[data-type="match"] {
  border-color: rgba(255, 184, 108, 0.3);
  color: var(--color-intermediate);
  background: rgba(255, 184, 108, 0.08);
}

.quiz-related {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quiz-related-link {
  font-size: var(--text-xs);
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.quiz-related-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.quiz-start-btn {
  margin-top: auto;
  padding: 8px var(--space-md);
  background: linear-gradient(135deg, rgba(22, 163, 254, 0.15), rgba(35, 201, 157, 0.15));
  border: 1px solid rgba(22, 163, 254, 0.3);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-start-btn:hover {
  background: linear-gradient(135deg, rgba(22, 163, 254, 0.25), rgba(35, 201, 157, 0.25));
  border-color: rgba(22, 163, 254, 0.5);
  transform: translateY(-1px);
}

/* Quiz progress */
.quiz-progress {
  margin-bottom: var(--space-xl);
}

.quiz-progress-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.quiz-progress-bar {
  height: 8px;
  background: var(--color-surface);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success));
  border-radius: 4px;
  transition: width var(--transition-smooth);
}

/* Quiz question container */
.quiz-question-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.quiz-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-md);
  border: 1px solid;
}

.quiz-type-badge[data-type="diagnose"] {
  color: var(--color-accent);
  border-color: rgba(22, 163, 254, 0.3);
  background: rgba(22, 163, 254, 0.1);
}

.quiz-type-badge[data-type="complete"] {
  color: var(--color-success);
  border-color: rgba(35, 201, 157, 0.3);
  background: rgba(35, 201, 157, 0.1);
}

.quiz-type-badge[data-type="match"] {
  color: var(--color-intermediate);
  border-color: rgba(255, 184, 108, 0.3);
  background: rgba(255, 184, 108, 0.1);
}

.quiz-prompt {
  margin-bottom: var(--space-xl);
}

/* Diagnose options */
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  line-height: 1.5;
}

.quiz-option:hover:not(.revealed) {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
}

.quiz-option.selected:not(.revealed) {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
  box-shadow: 0 0 0 2px rgba(22, 163, 254, 0.25);
}

.quiz-option.revealed.correct {
  border-color: var(--color-success);
  background: var(--color-success-muted);
}

.quiz-option.revealed.incorrect {
  border-color: var(--color-advanced);
  background: rgba(255, 107, 107, 0.1);
}

.quiz-option-key {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.quiz-option.selected .quiz-option-key {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.quiz-option.revealed.correct .quiz-option-key {
  background: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-white);
}

.quiz-option.revealed.incorrect .quiz-option-key {
  background: var(--color-advanced);
  border-color: var(--color-advanced);
  color: var(--color-white);
}

.quiz-option-text {
  flex: 1;
  padding-top: 3px;
}

/* Complete input */
.quiz-complete-input-wrapper {
  margin-bottom: var(--space-md);
}

.quiz-complete-input {
  width: 100%;
  padding: 12px var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
}

.quiz-complete-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.quiz-complete-input::placeholder {
  color: var(--color-text-muted);
}

.quiz-complete-input.correct {
  border-color: var(--color-success);
  background: var(--color-success-muted);
}

.quiz-complete-input.incorrect {
  border-color: var(--color-advanced);
  background: rgba(255, 107, 107, 0.1);
}

.quiz-correct-answer {
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-success);
}

.quiz-correct-answer code {
  font-family: var(--font-mono);
  background: var(--color-success-muted);
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(35, 201, 157, 0.3);
}

/* Match interface */
.quiz-match-container {
  margin-bottom: var(--space-md);
}

.quiz-match-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

.quiz-match-left,
.quiz-match-right {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.quiz-match-item {
  padding: 10px var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  line-height: 1.4;
}

.quiz-match-item:hover:not(.revealed) {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
}

.quiz-match-item.active {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(22, 163, 254, 0.3);
  background: var(--color-accent-muted);
}

.quiz-match-item.paired {
  border-width: 2px;
}

.quiz-match-item.pair-0 { border-color: var(--color-accent); background: rgba(22, 163, 254, 0.08); }
.quiz-match-item.pair-1 { border-color: var(--color-success); background: rgba(35, 201, 157, 0.08); }
.quiz-match-item.pair-2 { border-color: var(--color-intermediate); background: rgba(255, 184, 108, 0.08); }
.quiz-match-item.pair-3 { border-color: #BB86FC; background: rgba(187, 134, 252, 0.08); }

.quiz-match-item.revealed.correct {
  border-color: var(--color-success);
  background: var(--color-success-muted);
}

.quiz-match-item.revealed.incorrect {
  border-color: var(--color-advanced);
  background: rgba(255, 107, 107, 0.1);
}

.quiz-match-reset {
  padding: 6px var(--space-md);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--space-sm);
}

.quiz-match-reset:hover {
  border-color: var(--color-advanced);
  color: var(--color-advanced);
}

/* Check / Next buttons */
.quiz-check-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px var(--space-xl);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-check-btn:hover:not([disabled]) {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(22, 163, 254, 0.3);
}

.quiz-check-btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}

.quiz-next-btn {
  display: inline-flex;
  align-items: center;
  margin-top: var(--space-md);
  padding: 10px var(--space-xl);
  background: linear-gradient(135deg, var(--color-accent), var(--color-success));
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-next-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(22, 163, 254, 0.3);
}

/* Feedback */
.quiz-feedback {
  margin-top: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm);
  border-left: 4px solid;
}

.quiz-feedback.correct {
  background: var(--color-success-muted);
  border-left-color: var(--color-success);
}

.quiz-feedback.incorrect {
  background: rgba(255, 107, 107, 0.08);
  border-left-color: var(--color-advanced);
}

.quiz-feedback-header {
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-sm);
}

.quiz-feedback.correct .quiz-feedback-header {
  color: var(--color-success);
}

.quiz-feedback.incorrect .quiz-feedback-header {
  color: var(--color-advanced);
}

.quiz-feedback-explanation {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
}

/* Score card */
.quiz-score-card {
  max-width: 520px;
  margin: var(--space-2xl) auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
}

.quiz-score-header {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.quiz-score-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text-bright);
  line-height: 1.1;
}

.quiz-score-pct {
  font-size: var(--text-xl);
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.quiz-score-bar {
  height: 10px;
  background: var(--color-bg);
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-border);
}

.quiz-score-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success));
  border-radius: 5px;
  transition: width 500ms ease;
}

.quiz-score-message {
  font-size: var(--text-lg);
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

.quiz-score-breakdown {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.quiz-score-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  font-size: var(--text-xs);
  font-weight: 700;
}

.quiz-score-dot.correct {
  background: var(--color-success-muted);
  color: var(--color-success);
  border: 1px solid rgba(35, 201, 157, 0.4);
}

.quiz-score-dot.incorrect {
  background: rgba(255, 107, 107, 0.1);
  color: var(--color-advanced);
  border: 1px solid rgba(255, 107, 107, 0.4);
}

.quiz-score-related {
  margin-bottom: var(--space-lg);
  text-align: left;
  padding: var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.quiz-score-related-title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.quiz-score-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

.quiz-restart-btn {
  padding: 10px var(--space-xl);
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-restart-btn:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.quiz-back-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.quiz-back-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }

  .header-inner {
    gap: var(--space-sm);
  }

  .logo {
    font-size: var(--text-base);
  }

  main {
    padding: var(--space-md);
  }

  .catalog-title {
    font-size: var(--text-xl);
  }

  .section-stats {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .stat-card {
    padding: var(--space-md);
  }

  .stat-count {
    font-size: var(--text-lg);
  }

  .filters {
    flex-direction: column;
    align-items: stretch;
  }

  .search-wrapper {
    min-width: unset;
  }

  .detail-name {
    font-size: var(--text-lg);
  }

  .tabs {
    overflow-x: auto;
  }

  .tab-btn {
    padding: var(--space-sm) var(--space-md);
  }
}

@media (min-width: 641px) and (max-width: 900px) {
  .section-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Quiz responsive */
@media (max-width: 640px) {
  .quiz-match-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .quiz-question-container {
    padding: var(--space-md);
  }

  .quiz-score-card {
    padding: var(--space-lg);
    margin: var(--space-md) auto;
  }

  .quiz-score-number {
    font-size: 2rem;
  }

  .quiz-score-actions {
    flex-direction: column;
  }

  .quiz-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .quiz-back-link {
    margin-left: 0;
  }

  .quiz-option {
    padding: var(--space-sm) var(--space-md);
  }
}