/* ==========================================================================
   Karvis.HubApp - AstroPaper Theme Stylesheet
   Design tokens, responsive layout, prose styling, and UI components
   ========================================================================== */

/* Design Tokens - Light Theme (Default) */
:root {
  --color-bg: #f3f4f6;
  --color-text: #1f2937;
  --color-accent: #006cac;
  --color-border: #9ca3af;
  --color-muted: #6b7280;
  --color-card: #ffffff;
  --color-card-border: #9ca3af;
  --color-code-bg: #e5e7eb;

  /* Aliases for convenience */
  --bg: var(--color-bg);
  --text: var(--color-text);
  --accent: var(--color-accent);
  --border: var(--color-border);
  --muted: var(--color-muted);
  --card: var(--color-card);
}

/* System Dark Theme Preference */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #212737;
    --color-text: #eaedf3;
    --color-accent: #ff6b01;
    --color-border: #ab4b08;
    --color-muted: #afb9ca;
    --color-card: rgba(255, 255, 255, 0.03);
    --color-card-border: #ab4b08;
    --color-code-bg: #293145;
  }
}

/* Explicit Dark Theme */
html[data-theme="dark"],
html.dark {
  --color-bg: #212737;
  --color-text: #eaedf3;
  --color-accent: #ff6b01;
  --color-border: #ab4b08;
  --color-muted: #afb9ca;
  --color-card: rgba(255, 255, 255, 0.03);
  --color-card-border: #ab4b08;
  --color-code-bg: #293145;
}

/* Explicit Light Theme */
html[data-theme="light"] {
  --color-bg: #f3f4f6;
  --color-text: #1f2937;
  --color-accent: #006cac;
  --color-border: #9ca3af;
  --color-muted: #6b7280;
  --color-card: #ffffff;
  --color-card-border: #9ca3af;
  --color-code-bg: #e5e7eb;
}

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

html {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.2s ease, color 0.2s ease;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  color: var(--color-text);
}

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

/* Responsive Container */
:root {
  --container-max-width: 48rem; /* Default: 768px */
}

html[data-container="wide"] {
  --container-max-width: 64rem; /* Wide: 1024px */
}

html[data-container="extra-wide"] {
  --container-max-width: 80rem; /* Extra-Wide: 1280px */
}

.app-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  transition: max-width 0.2s ease-in-out;
}

@media (min-width: 640px) {
  .app-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

/* Site Shell */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.flex-grow {
  flex-grow: 1;
}

/* Dashed Borders */
.dashed-border {
  border: 1px dashed var(--color-border);
}

.dashed-border-t {
  border-top: 1px dashed var(--color-border);
}

.dashed-border-b {
  border-bottom: 1px dashed var(--color-border);
}

/* Card Component */
.card {
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  padding: 1.25rem;
  background-color: var(--color-card);
  transition: border-color 0.2s ease, transform 0.15s ease, background-color 0.2s ease;
}

.card:hover {
  border-color: var(--color-accent);
}

/* Active Nav & Navigation */
.active-nav {
  color: var(--color-accent) !important;
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.15s ease;
}

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

/* Header Component */
.site-header {
  width: 100%;
  border-bottom: 1px dashed var(--color-border);
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  background-color: var(--color-bg);
}

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

.site-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-title:hover {
  color: var(--color-accent);
}

/* Theme Toggle Button */
.theme-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  border-radius: 0.375rem;
  transition: color 0.15s ease, transform 0.15s ease;
}

.theme-btn:hover {
  color: var(--color-accent);
  transform: scale(1.1);
}

.theme-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* Sun/Moon Icon Visibility */
.icon-sun {
  display: none;
}

.icon-moon {
  display: block;
}

html[data-theme="dark"] .icon-sun,
html.dark .icon-sun {
  display: block;
}

html[data-theme="dark"] .icon-moon,
html.dark .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: block;
  }
  :root:not([data-theme="light"]) .icon-moon {
    display: none;
  }
}

/* Container Width Toggle Button */
.width-btn {
  background: transparent;
  border: 1px dashed var(--color-border);
  cursor: pointer;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 600;
  transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.width-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.width-btn svg {
  width: 0.95rem;
  height: 0.95rem;
  flex-shrink: 0;
}

.width-btn .width-label {
  line-height: 1;
  letter-spacing: 0.02em;
}

/* Footer Component */
.site-footer {
  margin-top: auto;
  width: 100%;
  border-top: 1px dashed var(--color-border);
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .footer-content {
    flex-direction: row;
    gap: 0;
  }
}

/* Post / Note Card Component */
.posts-list,
.notes-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-item,
.note-item {
  margin-top: 1.5rem;
  margin-bottom: 1.75rem;
  list-style: none;
}

.post-title-link,
.note-title-link {
  display: inline-block;
  color: var(--color-accent);
  text-decoration: none;
}

.post-card-title,
.post-item .post-title,
.note-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.4;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
  text-decoration-color: transparent;
  transition: text-decoration-color 0.15s ease, color 0.15s ease;
}

.post-title-link:hover .post-card-title,
.post-title-link:hover .post-title,
.note-title-link:hover .note-title {
  text-decoration-color: var(--color-accent);
}

.post-meta,
.note-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 0.35rem;
}

.post-meta svg,
.note-meta svg {
  width: 0.9rem;
  height: 0.9rem;
  opacity: 0.8;
}

.post-card-subtitle,
.post-item .post-subtitle,
.note-subtitle {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.post-tags,
.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
  padding: 0;
  list-style: none;
}

/* Tag Pills & Dashed Tags */
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--color-muted);
  border: 1px dashed var(--color-border);
  border-radius: 9999px;
  text-decoration: none;
  background: transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.tag-pill:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.tag-dashed {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  color: var(--color-muted);
  border-bottom: 1px dashed var(--color-border);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.tag-dashed:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* App Badge & Ecosystem Grid */
.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
  margin-bottom: 2rem;
}

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

.app-badge {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1.1rem;
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  background-color: var(--color-card);
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.15s ease, background-color 0.2s ease;
}

.app-badge:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.app-badge-icon {
  font-size: 1.75rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.app-badge-icon svg {
  width: 2rem;
  height: 2rem;
  color: var(--color-accent);
}

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

.app-badge-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s ease;
}

.app-badge:hover .app-badge-title {
  color: var(--color-accent);
}

.external-icon {
  width: 0.85rem;
  height: 0.85rem;
  opacity: 0.6;
  flex-shrink: 0;
}

.app-badge-desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 0.25rem 0 0 0;
  line-height: 1.4;
}

/* Typography & General Utilities */
.text-muted {
  color: var(--color-muted);
}

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

.font-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

.py-6 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.py-16 {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.text-4xl {
  font-size: 2.25rem;
  line-height: 2.5rem;
}

.font-bold {
  font-weight: 700;
}

.link-accent {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
  transition: opacity 0.15s ease;
}

.link-accent:hover {
  opacity: 0.8;
}

/* ==========================================================================
   Prose & App-Prose Styling (Markdown content rendered via Markdig)
   ========================================================================== */
.prose,
.app-prose {
  color: var(--color-text);
  line-height: 1.75;
  font-size: 1rem;
  word-break: break-word;
}

.prose h1,
.app-prose h1 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
  color: var(--color-text);
}

.prose h2,
.app-prose h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
  color: var(--color-text);
}

.prose h3,
.app-prose h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  color: var(--color-text);
}

.prose h4,
.app-prose h4,
.prose h5,
.app-prose h5,
.prose h6,
.app-prose h6 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.prose p,
.app-prose p {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.prose a,
.app-prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
  transition: opacity 0.15s ease;
}

.prose a:hover,
.app-prose a:hover {
  opacity: 0.8;
}

.prose strong,
.app-prose strong {
  font-weight: 600;
  color: var(--color-text);
}

.prose ul,
.app-prose ul {
  list-style-type: disc;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.prose ol,
.app-prose ol {
  list-style-type: decimal;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.prose li,
.app-prose li {
  margin-top: 0.35rem;
  margin-bottom: 0.35rem;
}

.prose blockquote,
.app-prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  margin: 1.25rem 0;
  color: var(--color-muted);
  font-style: italic;
}

.prose code,
.app-prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875em;
  background-color: var(--color-code-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.25rem;
  padding: 0.15rem 0.35rem;
}

.prose pre,
.app-prose pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
  background-color: var(--color-code-bg);
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  line-height: 1.5;
}

.prose pre code,
.app-prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

.prose hr,
.app-prose hr {
  border: none;
  border-top: 1px dashed var(--color-border);
  margin: 2rem 0;
}

.prose table,
.app-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  overflow: hidden;
}

.prose th,
.app-prose th,
.prose td,
.app-prose td {
  border: 1px solid var(--color-border);
  padding: 0.65rem 0.85rem;
  text-align: left;
}

.prose th,
.app-prose th {
  background-color: var(--color-card);
  font-weight: 600;
  border-bottom: 2px solid var(--color-border);
}

.prose tbody tr:hover,
.app-prose tbody tr:hover {
  background-color: var(--color-card);
}

.prose img,
.app-prose img {
  max-width: 100%;
  height: auto;
  border-radius: 0.375rem;
  margin: 1rem 0;
}

/* ==========================================================================
   Page Layout & Component Specific Styles
   ========================================================================== */

/* Hero Section */
.hero-section {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin: 0;
  line-height: 1.2;
  color: var(--color-text);
}

.hero-bio {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 42rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-action-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.15rem;
  border: 1px dashed var(--color-accent);
  border-radius: 0.375rem;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.95rem;
  background-color: var(--color-card);
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.hero-action-link:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
  transform: translateY(-1px);
}

.hero-action-link-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.15rem;
  border: 1px dashed var(--color-border);
  border-radius: 0.375rem;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.hero-action-link-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Sections */
.section {
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

.section-divider {
  border: none;
  border-top: 1px dashed var(--color-border);
  margin: 2.5rem 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
}

.section-desc {
  font-size: 0.95rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
  margin-bottom: 1.25rem;
}

.view-all-link {
  font-size: 0.9rem;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
  transition: opacity 0.15s ease;
}

.view-all-link:hover {
  opacity: 0.8;
}

.all-posts-btn-wrapper {
  text-align: center;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.btn-all-posts {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.35rem;
  border: 1px dashed var(--color-border);
  border-radius: 0.375rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-card);
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn-all-posts:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

/* Page Headers */
.page-header {
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  color: var(--color-text);
  line-height: 1.3;
}

.page-desc {
  color: var(--color-muted);
  font-size: 1rem;
  margin: 0;
  line-height: 1.6;
}

/* Tag Filter Bar */
.tag-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border: 1px dashed var(--color-accent);
  border-radius: 0.5rem;
  background-color: var(--color-card);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.tag-filter-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tag-filter-clear {
  color: var(--color-accent);
  font-size: 0.85rem;
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 3px;
  cursor: pointer;
}

.tag-filter-clear:hover {
  opacity: 0.8;
}

/* Post Detail */
.post-detail {
  margin-top: 1rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.post-header {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.post-detail .post-title,
.post-header .post-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 0.75rem 0;
  color: var(--color-text);
  text-decoration: none;
}

.post-detail .post-subtitle,
.post-header .post-subtitle {
  font-size: 1.1rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.post-divider {
  border: none;
  border-top: 1px dashed var(--color-border);
  margin: 2rem 0;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--color-border);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  background-color: var(--color-card);
  color: var(--color-muted);
  margin: 2rem 0;
}

.empty-state p {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
}

/* ==========================================================================
   Mermaid Diagrams
   ========================================================================== */
.mermaid-diagram-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--color-card);
  border: 1px dashed var(--color-border);
  border-radius: 0.5rem;
  overflow-x: auto;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.mermaid-diagram-container svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.mermaid-diagram-container.mermaid-error {
  flex-direction: column;
  align-items: flex-start;
  background-color: rgba(239, 68, 68, 0.08);
  border-color: #ef4444;
}

.mermaid-diagram-container .mermaid-error-message {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #ef4444;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.mermaid-diagram-container.mermaid-error pre {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  font-size: 0.8rem;
  color: var(--color-text);
}

/* ==========================================================================
   Reading Progress Bar (Post Detail)
   ========================================================================== */
@keyframes grow-progress {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 100;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

@supports (animation-timeline: scroll()) {
  .reading-progress-bar {
    animation: grow-progress auto linear;
    animation-timeline: scroll();
  }
}