/* catppuccin latte (light) */
:root {
  --bg: #eff1f5;
  --bg-secondary: #e6e9ef;
  --text: #4c4f69;
  --text-secondary: #5c5f77;
  --link: #1e66f5;
  --link-visited: #209fb5;
  --border: #bcc0cc;
  --code-bg: #dce0e8;
}

/* catppuccin frappe (dark) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #303446;
    --bg-secondary: #292c3c;
    --text: #c6d0f5;
    --text-secondary: #a5adce;
    --link: #8caaee;
    --link-visited: #85c1dc;
    --border: #51576d;
    --code-bg: #232634;
  }
}

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

body {
  margin: 0;
  padding-top: 41px;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  color-scheme: light dark;
  line-height: 1.6;
  overflow-x: hidden;
}

.wrapper {
  padding: 0 1.5em;
}



a {
  color: var(--link);
}

:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

a:visited {
  color: var(--link-visited);
}

code {
  background: var(--code-bg);
  padding: 0.15rem 0.3rem;
  border-radius: 0.2rem;
  font-size: 0.9em;
}

pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 0.3rem;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}

footer {
  margin-top: 3rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 0.75rem 0;
  font-size: 0.9rem;
}

footer p {
  margin: 0;
}

nav {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

nav a {
  color: var(--link);
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

.post-layout {
  display: block;
}

article {
  margin: 2rem 0;
}

.toc {
  display: none;
}

@media (min-width: 72rem) {
  .post-layout {
    display: grid;
    grid-template-columns: 1fr 14rem;
    gap: 2rem;
  }

  .toc {
    display: block;
    position: sticky;
    top: 4rem;
    margin-top: 2rem;
    max-height: calc(100vh - 5rem);
    overflow-y: auto;
    font-size: 0.85rem;
    align-self: start;
  }

  .toc details {
    border-left: 2px solid var(--border);
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .toc summary {
    cursor: pointer;
    font-weight: bold;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
  }

  .toc ol {
    list-style: none;
    padding: 0 0 0 0.5rem;
    margin: 0;
  }

  .toc li {
    margin: 0.25rem 0;
    line-height: 1.4;
  }

  .toc .depth-1 { padding-left: 1rem; }
  .toc .depth-2 { padding-left: 2rem; }
  .toc .depth-3 { padding-left: 3rem; }
  .toc .depth-4 { padding-left: 4rem; }
  .toc .depth-5 { padding-left: 5rem; }

  .toc a {
    text-decoration: none;
    color: var(--text-secondary);
    opacity: 0.7;
    transition: opacity 0.15s, color 0.15s;
  }

  .toc a:hover {
    color: var(--link);
    opacity: 1;
  }
}

article h1 {
  margin-top: 0;
}

.post-meta {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-date {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.tag {
  display: inline-block;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  padding: 0.1rem 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
}

th, td {
  border: 1px solid var(--border);
  padding: 0.5rem;
  text-align: left;
}

th {
  background: var(--bg-secondary);
}

.callout {
  border-left: 4px solid var(--link);
  background: var(--bg-secondary);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 0 0.3rem 0.3rem 0;
}

.callout-title {
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.post-list {
  list-style: none;
  padding: 0;
}

.post-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.post-list time {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.marquee {
  position: fixed;
  top: 0;
  width: 100%;
  overflow: hidden;
  z-index: 100;
  background: var(--bg-secondary);
  padding: 0.3rem 0;
}

.marquee-inner {
  display: flex;
  animation: scroll calc(var(--badge-count, 10) * 3s) linear infinite;
}

.marquee-track {
  display: flex;
  flex-shrink: 0;
  gap: 0.25rem;
}

@keyframes scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-inner { animation-play-state: paused; }
}

#walkman-mp3-player {
  position: fixed;
  bottom: 1rem;
  right: 2em;
  z-index: 200;
  width: 14rem;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  font-size: 0.8rem;
  color: var(--text);
}

#wp-screen {
  background: var(--code-bg);
  border-radius: 0.3rem;
  margin: 0.5rem;
  padding: 0.5rem;
  overflow: hidden;
}

#wp-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3rem;
  margin-bottom: 0.4rem;
}

#wp-collapse-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0 0.3rem;
  line-height: 1;
}

#wp-collapse-btn:hover {
  color: var(--text);
}

.wp-screen-panel {
  display: none;
}

.wp-screen-panel.active {
  display: block;
}

#wp-playlist {
  max-height: 150px;
  overflow-y: auto;
}

.wp-playlist-item {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  padding: 0.25rem 0.3rem;
  cursor: pointer;
  font-size: 0.75rem;
  border-radius: 0.2rem;
  font-family: inherit;
}

.wp-playlist-item:hover {
  background: var(--bg-secondary);
}

.wp-playlist-item.active {
  color: var(--link);
  font-weight: bold;
}

#wp-current-song {
  text-align: center;
}

.wp-info {
  margin: 0.2rem 0;
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wp-icon {
  color: var(--text-secondary);
}

#wp-album {
  display: block;
  margin: 0.3rem auto;
  max-width: 120px;
  max-height: 120px;
  border-radius: 0.25rem;
}

#wp-album[src=""],
#wp-album:not([src]) {
  display: none;
}

#wp-now-playing {
  margin: 0.2rem 0;
  font-size: 0.7rem;
  color: var(--text-secondary);
}

#wp-current-song hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.3rem 0;
}

#wp-bottom-bar {
  margin-top: 0.4rem;
  border-top: 1px solid var(--border);
  padding-top: 0.3rem;
}

.wp-track-progress {
  width: 100%;
  height: 4px;
  accent-color: var(--link);
  cursor: pointer;
  margin: 0;
}

#wp-playing-status {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

#wp-current-time {
  font-size: 0.7rem;
  color: var(--text-secondary);
  float: right;
}

#wp-current-bar {
  clear: both;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
}

#wp-controls {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.4rem 0.5rem;
}

#wp-controls button {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  color: var(--text);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-family: inherit;
  line-height: 1.4;
}

#wp-controls button:hover {
  background: var(--bg-secondary);
}

#wp-controls button:active {
  transform: translateY(1px);
}

.wp-collapsed #wp-screen,
.wp-collapsed #wp-playlist-btn,
.wp-collapsed #wp-current-song-btn,
.wp-collapsed #wp-prev,
.wp-collapsed #wp-next {
  display: none;
}

.wp-collapsed {
  width: auto;
}

.wp-collapsed #wp-controls {
  padding: 0.3rem;
}

@media (max-width: 480px) {
  #walkman-mp3-player:not(.wp-expanded) {
    width: auto;
  }

  #walkman-mp3-player:not(.wp-expanded) #wp-screen,
  #walkman-mp3-player:not(.wp-expanded) #wp-playlist-btn,
  #walkman-mp3-player:not(.wp-expanded) #wp-current-song-btn,
  #walkman-mp3-player:not(.wp-expanded) #wp-prev,
  #walkman-mp3-player:not(.wp-expanded) #wp-next {
    display: none;
  }

  #walkman-mp3-player:not(.wp-expanded) #wp-controls {
    padding: 0.3rem;
  }
}