:root {
  --bg: #0d1117;
  --fg: #f0f3f6;
  --muted: color-mix(in srgb, var(--fg) 60%, transparent);
  --rule: color-mix(in srgb, var(--fg) 15%, transparent);
  --card-bg: color-mix(in srgb, var(--fg) 4%, transparent);
  --card-hover: color-mix(in srgb, var(--fg) 7%, transparent);
  --card-border: color-mix(in srgb, var(--fg) 12%, transparent);
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --callout-note-bg: rgba(56, 189, 248, 0.08);
  --callout-note-border: rgba(56, 189, 248, 0.35);
  --callout-warn-bg: rgba(251, 191, 36, 0.08);
  --callout-warn-border: rgba(251, 191, 36, 0.35);
  --callout-tip-bg: rgba(52, 211, 153, 0.08);
  --callout-tip-border: rgba(52, 211, 153, 0.35);
  --measure: 46rem;
  --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #ffffff;
    --fg: #1a1e24;
    --muted: color-mix(in srgb, var(--fg) 55%, transparent);
    --rule: color-mix(in srgb, var(--fg) 12%, transparent);
    --card-bg: color-mix(in srgb, var(--fg) 2.5%, transparent);
    --card-hover: color-mix(in srgb, var(--fg) 5%, transparent);
    --card-border: color-mix(in srgb, var(--fg) 10%, transparent);
    --accent: #0284c7;
    --accent-soft: rgba(2, 132, 199, 0.08);
    --callout-note-bg: rgba(2, 132, 199, 0.06);
    --callout-note-border: rgba(2, 132, 199, 0.3);
    --callout-warn-bg: rgba(217, 119, 6, 0.06);
    --callout-warn-border: rgba(217, 119, 6, 0.3);
    --callout-tip-bg: rgba(5, 150, 105, 0.06);
    --callout-tip-border: rgba(5, 150, 105, 0.3);
  }
}

[data-theme="light"] {
  --bg: #ffffff;
  --fg: #1a1e24;
  --muted: color-mix(in srgb, var(--fg) 55%, transparent);
  --rule: color-mix(in srgb, var(--fg) 12%, transparent);
  --card-bg: color-mix(in srgb, var(--fg) 2.5%, transparent);
  --card-hover: color-mix(in srgb, var(--fg) 5%, transparent);
  --card-border: color-mix(in srgb, var(--fg) 10%, transparent);
  --accent: #0284c7;
  --accent-soft: rgba(2, 132, 199, 0.08);
  --callout-note-bg: rgba(2, 132, 199, 0.06);
  --callout-note-border: rgba(2, 132, 199, 0.3);
  --callout-warn-bg: rgba(217, 119, 6, 0.06);
  --callout-warn-border: rgba(217, 119, 6, 0.3);
  --callout-tip-bg: rgba(5, 150, 105, 0.06);
  --callout-tip-border: rgba(5, 150, 105, 0.3);
}

[data-theme="dark"] {
  --bg: #0d1117;
  --fg: #f0f3f6;
  --muted: color-mix(in srgb, var(--fg) 60%, transparent);
  --rule: color-mix(in srgb, var(--fg) 15%, transparent);
  --card-bg: color-mix(in srgb, var(--fg) 4%, transparent);
  --card-hover: color-mix(in srgb, var(--fg) 7%, transparent);
  --card-border: color-mix(in srgb, var(--fg) 12%, transparent);
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --callout-note-bg: rgba(56, 189, 248, 0.08);
  --callout-note-border: rgba(56, 189, 248, 0.35);
  --callout-warn-bg: rgba(251, 191, 36, 0.08);
  --callout-warn-border: rgba(251, 191, 36, 0.35);
  --callout-tip-bg: rgba(52, 211, 153, 0.08);
  --callout-tip-border: rgba(52, 211, 153, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-serif);
  line-height: 1.75;
  background-color: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted color-mix(in srgb, var(--accent) 50%, transparent);
  transition: all 0.15s ease;
}

a:hover {
  border-bottom: 1px solid var(--accent);
  filter: brightness(1.15);
}

.wrap {
  width: min(100%, var(--measure));
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  flex-wrap: wrap;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  border: none;
}

.brand-badge:hover {
  color: var(--fg);
  border: none;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lang-switcher {
  display: inline-flex;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  background: none;
  border: none;
  padding: 4px 8px;
  font-size: 0.78rem;
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  border-radius: 16px;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 66px;
  box-sizing: border-box;
}

.lang-btn:hover {
  color: var(--fg);
}

.lang-btn.active {
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
}

.theme-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.theme-btn:hover {
  color: var(--fg);
  border-color: var(--rule);
}

.site-header {
  margin-bottom: 3rem;
}

.site-title {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 0.75rem 0;
  letter-spacing: -0.01em;
}

.site-subtitle {
  font-size: 1.12rem;
  color: var(--muted);
  margin: 0 0 1.5rem 0;
  line-height: 1.6;
}

.ground-quote {
  font-style: italic;
  padding: 0.9rem 1.25rem;
  margin: 1.5rem 0 2rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 6px 6px 0;
  font-size: 0.95rem;
  color: var(--fg);
}

.ground-quote a {
  font-style: normal;
  font-size: 0.82rem;
  font-family: var(--font-sans);
  display: block;
  margin-top: 0.4rem;
  font-weight: 600;
  color: var(--accent);
}

.toc-section {
  margin: 2.5rem 0 3.5rem;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
}

.toc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-family: var(--font-sans);
}

.toc-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

.search-wrapper {
  margin-bottom: 1.25rem;
}

.search-input {
  width: 100%;
  padding: 0.65rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  color: var(--fg);
  outline: none;
  transition: border-color 0.15s ease;
}

.search-input:focus {
  border-color: var(--accent);
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.toc-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0.6rem;
  border-radius: 4px;
  transition: background-color 0.15s ease;
}

.toc-item:hover {
  background-color: var(--card-hover);
}

.toc-link {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg);
  border: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-link:hover {
  color: var(--accent);
  border: none;
}

.toc-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}

.chapter-article {
  margin-bottom: 4.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--rule);
}

.chapter-article:last-of-type {
  border-bottom: none;
}

.chapter-header {
  margin-bottom: 2rem;
}

.chapter-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.35rem;
}

.chapter-title {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.6rem 0;
  letter-spacing: -0.01em;
}

.chapter-subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}

.content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 2.2rem 0 1rem;
  line-height: 1.35;
}

.content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 1.8rem 0 0.75rem;
  line-height: 1.4;
}

.content p {
  margin: 1.2rem 0;
  line-height: 1.75;
}

.content ul, .content ol {
  margin: 1.2rem 0;
  padding-left: 1.5rem;
}

.content li {
  margin: 0.45rem 0;
  line-height: 1.7;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 1.75rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.55;
  font-family: var(--font-sans);
}

th, td {
  padding: 0.7rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--fg);
  background: var(--card-bg);
  border-top: 1px solid var(--rule);
  border-bottom: 2px solid var(--rule);
}

tr:hover td {
  background: var(--card-bg);
}

.callout {
  padding: 1rem 1.25rem;
  margin: 1.75rem 0;
  border-radius: 6px;
  font-size: 0.94rem;
  line-height: 1.65;
}

.callout strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.callout-note {
  background: var(--callout-note-bg);
  border-left: 4px solid var(--callout-note-border);
}

.callout-warning {
  background: var(--callout-warn-bg);
  border-left: 4px solid var(--callout-warn-border);
}

.callout-tip {
  background: var(--callout-tip-bg);
  border-left: 4px solid var(--callout-tip-border);
}

pre {
  background: color-mix(in srgb, var(--fg) 5%, transparent);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.5;
  margin: 1.5rem 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

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

.dual-container {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.dual-lang-block {
  border-left: 2px solid var(--rule);
  padding-left: 1.25rem;
}

.dual-lang-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
  display: inline-block;
}

.doc-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.88rem;
}

.doc-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  border: none;
}

.site-footer {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--muted);
}

.footer-ecosystem-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--fg);
  margin: 0 0 1rem 0;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0 0 1.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: var(--muted);
  border: none;
}

.footer-links a:hover {
  color: var(--fg);
  text-decoration: underline;
}

.footer-meta {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .site-title {
    font-size: 1.75rem;
  }
  .chapter-title {
    font-size: 1.45rem;
  }
  .wrap {
    padding: 20px 16px 60px;
  }
}

/* ==========================================================================
   Rich Media, Visual Cards & Dual Language Controls (Mushroom Guide Model)
   ========================================================================== */

.lang-switcher-wrapper {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.lang-row {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2px;
}

.lang-btn.secondary-btn {
  opacity: 0.65;
}

.lang-btn.secondary-btn:hover {
  opacity: 1;
}

.lang-btn.secondary-btn.active-secondary {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  opacity: 1;
  box-shadow: 0 0 0 1px var(--accent);
}

.lang-btn.disabled-lang {
  opacity: 0.2;
  cursor: not-allowed;
  pointer-events: none;
}

/* Figure & Diagrams */
figure.media-figure {
  margin: 2rem 0;
  text-align: center;
}

figure.media-figure img,
figure.media-figure svg {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--rule);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

figure.media-figure figcaption {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 0.6rem;
  line-height: 1.5;
}

/* Species & Location Visual Cards */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.media-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

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

.media-card-img-wrap {
  position: relative;
  width: 100%;
  height: 180px;
  background: #111;
  overflow: hidden;
}

.media-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.media-card:hover .media-card-img-wrap img {
  transform: scale(1.03);
}

.media-card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.media-card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.3rem 0;
  line-height: 1.3;
}

.media-card-subtitle {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.media-card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  color: var(--fg);
}

.badge.danger {
  background: rgba(239, 68, 68, 0.18);
  color: #f87171;
  font-weight: 600;
}

.badge.success {
  background: rgba(16, 185, 129, 0.18);
  color: #34d399;
  font-weight: 600;
}

.badge.accent {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.media-card-desc {
  font-family: var(--font-sans);
  font-size: 0.86rem;
  color: var(--fg);
  line-height: 1.55;
  margin-top: auto;
}

/* Embedded Educational Video Cards */
.video-card {
  margin: 2.2rem 0;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
}

.video-responsive-wrap {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  background: #000000;
}

.video-responsive-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-meta-box {
  padding: 0.9rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
  border-top: 1px solid var(--card-border);
}

.video-meta-title {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--fg);
  margin-bottom: 0.25rem;
}

.video-meta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--accent);
}

/* ==========================================================================
   Multi-Page Chapter Directory & Seasonal Spotlight Styles
   ========================================================================== */

.seasonal-spotlight-banner {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.09) 0%, rgba(217, 119, 6, 0.04) 100%);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  margin: 2rem 0 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.seasonal-spotlight-banner:hover {
  transform: translateY(-2px);
  border-color: rgba(245, 158, 11, 0.6);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.1);
}

.spotlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
  padding: 3px 8px;
  border-radius: 4px;
  align-self: flex-start;
}

.spotlight-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--fg);
}

.spotlight-desc {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--muted);
  margin: 0;
}

.spotlight-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  align-self: flex-start;
  margin-top: 0.35rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  color: #f59e0b;
  border: none;
}

.spotlight-cta:hover {
  text-decoration: underline;
  border: none;
}

/* Chapter Directory Grid */
.directory-section {
  margin: 2.5rem 0 3.5rem 0;
}

.directory-header {
  margin-bottom: 1.5rem;
}

.directory-title {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.4rem 0;
}

.directory-subtitle {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
}

.chapter-directory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.4rem;
  margin-top: 1.25rem;
}

.chapter-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
  position: relative;
}

.chapter-card:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.chapter-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.chapter-card-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.chapter-card-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.chapter-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 0.5rem 0;
  color: var(--fg);
}

.chapter-card-sub {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 0 1rem 0;
  flex: 1;
}

.chapter-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}

.chapter-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent);
}

.chapter-card:hover .chapter-card-footer span:last-child {
  transform: translateX(3px);
}

.chapter-card-footer span:last-child {
  transition: transform 0.15s ease;
}

/* Calendar action button */
.calendar-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  margin-top: 0.4rem;
  transition: all 0.15s ease;
}

.calendar-detail-btn:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  text-decoration: none;
}