/* Layout for Learning tab */

.learning-subtitle {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  opacity: 0.8;
}

.learning-layout {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 1.2rem;
  align-items: flex-start;
  padding-top: 1rem;
}


/* Search panel */

.learning-search-panel {
  padding: 0.9rem 0.9rem 1rem;
  border-radius: 0.9rem;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(18px);
}

.learning-search-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  opacity: 0.7;
  margin-bottom: 0.35rem;
}

.learning-search-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  flex-wrap: nowrap;
}

.learning-search-input {
  flex: 1;
  padding: 0.45rem 0.6rem;
  border-radius: 0.55rem;
  /* Stronger, higher-contrast border */
  border: 1.5px solid color-mix(in srgb, var(--border-color) 40%, var(--color-text) 60%);
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  color: var(--color-text);
  font-size: 0.95rem;
}

.learning-search-input:focus-visible {
  outline: none;
  border-color: var(--color-accent-soft);
  box-shadow: 0 0 0 1px var(--color-accent-soft);
}

.learning-search-button {
  flex-shrink: 0;
  padding: 0.4rem 0.75rem;
  border-radius: 0.55rem;
  border: 1px solid var(--panel-border);
  background: var(--panel-bg);
  font-size: 0.9rem;
  white-space: nowrap;
}

.learning-search-button:hover,
.learning-search-button:focus-visible {
  background: var(--hover-bg);
  outline: none;
}

.learning-search-status {
  min-height: 1.1rem;
  font-size: 0.8rem;
  opacity: 0.75;
}

/* Results list */

.learning-results {
  list-style: none;
  margin: 0.3rem 0 0;
  padding: 0;
  max-height: 420px;
  overflow-y: auto;
  border-top: 1px solid var(--border-color);
}

.learning-result-item {
  margin: 0;
  padding: 0;
}

.learning-result-button {
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.1rem 0.5rem;
  border-radius: 0.4rem;
  border: none;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  cursor: pointer;
}

.learning-result-button:hover,
.learning-result-button:focus-visible {
  background: var(--hover-bg);
  outline: none;
}

.learning-result-title {
  font-size: 0.95rem;
  font-weight: 500;
}

.learning-result-snippet {
  font-size: 0.8rem;
  opacity: 0.75;
}

/* Article area */

.learning-article {
  width: 100%;
  margin: 0;
  max-width: none;
  padding: 1.1rem 1.2rem 1.6rem;
  border-radius: 0.9rem;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(20px);
}

.learning-article-header {
  margin-bottom: 0.9rem;
}

.learning-article-title {
  margin: 0 0 0.25rem;
  font-family: var(--font-header);
  font-size: 1.35rem;
}

.learning-article-meta {
  font-size: 0.8rem;
  opacity: 0.75;
}

.learning-article-tagline {
  font-style: italic;
}

.learning-article-body p {
  margin: 0.35rem 0;
  line-height: 1.7;
}

/* Rich content styling inside the article body */

.learning-article-body hr,
.learning-article-infobox hr {
  border: 0;
  height: 1px;
  margin: 0.5rem 0;
  background: color-mix(
    in srgb,
    var(--border-color) 65%,
    var(--color-text) 35%
  );
  opacity: 0.9;
}

.learning-article-body {
  font-size: 0.96rem;
  line-height: 1.7;
}

.learning-article-body h2,
.learning-article-body h3,
.learning-article-body h4 {
  font-family: var(--font-header);
}

/* Headings inside article content (h2+ used as section headings) */
.learning-article-body h2 {
  margin: 2.0rem 0 0.55rem;
  font-size: 1.3rem;
  font-weight: 650;
  border-bottom: 1px solid color-mix(in srgb, var(--border-color) 60%, transparent);
  padding-bottom: 0.2rem;
}

.learning-article-body h3 {
  margin: 1.6rem 0 0.4rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.learning-article-body h4 {
  margin: 1.2rem 0 0.3rem;
  font-size: 1.0rem;
  font-weight: 550;
}

/* Lists */
.learning-article-body ul,
.learning-article-body ol {
  margin: 0.35rem 0 0.6rem 1.3rem;
  padding: 0;
}

.learning-article-body li {
  margin: 0.15rem 0;
}

/* Paragraphs */
.learning-article-body p {
  margin: 0.45rem 0;
  line-height: 1.75;
}

/* Links inside article + infobox: same styling */
.learning-article-body a,
.learning-article-infobox a {
  color: color-mix(in srgb, var(--color-text) 70%, var(--color-accent-soft) 30%);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  font-weight: 500;
}

.learning-article-body a:hover,
.learning-article-body a:focus-visible,
.learning-article-infobox a:hover,
.learning-article-infobox a:focus-visible {
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* Blockquotes */
.learning-article-body blockquote {
  margin: 0.7rem 0;
  padding: 0.5rem 0.75rem;
  border-left: 3px solid var(--border-color);
  border-radius: 0.4rem;
  background: color-mix(in srgb, var(--panel-bg) 80%, transparent);
  font-style: italic;
  opacity: 0.95;
}

/* Inline code */
.learning-article-body code {
  font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.85em;
  padding: 0.12em 0.3em;
}

/* Code blocks */
.learning-article-body pre {
  margin: 0.7rem 0;
  padding: 0.6rem 0.75rem;
  background: color-mix(in srgb, var(--panel-bg) 60%, var(--color-bg) 40%);
  border: 1px solid color-mix(in srgb, var(--border-color) 60%, var(--color-text) 20%);
  border-radius: 0.6rem;
  overflow-x: auto;
}

.learning-article-body pre code {
  display: block;
  padding: 0;
  background: transparent;
}

/* Images */
.learning-article-body img,
.learning-article-infobox img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0.6rem auto;
  border-radius: 0.6rem;
  border: 1px solid color-mix(in srgb, var(--border-color) 60%, var(--color-text) 20%);
  /* help transparent PNGs stand out in dark mode */
  background: #ffffff;
  padding: 0.25rem;
}

/* Figures */
.learning-article-body figure {
  margin: 0.7rem 0;
  text-align: center;
}

.learning-article-body figcaption {
  margin-top: 0.3rem;
  font-size: 0.8rem;
  opacity: 0.75;
}

/* Optional: in-article table of contents */
.learning-toc {
  margin: 0.6rem 0 1.2rem;
  padding: 0.7rem 0.85rem;
  border-radius: 0.7rem;
  background: color-mix(in srgb, var(--panel-bg) 60%, var(--color-bg) 40%);
  border: 1px solid color-mix(in srgb, var(--border-color) 60%, var(--color-text) 20%);
  font-size: 0.86rem;
}

.learning-toc-title {
  font-weight: 600;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  opacity: 0.85;
}

.learning-toc-list {
  list-style: none;
  padding: 0;
  margin: 0.1rem 0 0;
}

.learning-toc-list li {
  margin: 0.1rem 0;
}

.learning-related {
  margin-top: 1.2rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.86rem;
}

.learning-related-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.learning-related-list {
  list-style: none;
  padding: 0;
  margin: 0.1rem 0 0;
}

.learning-related-list li {
  margin: 0.1rem 0;
}

.learning-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.5fr) minmax(220px, 1fr);
  gap: 1.25rem;
  align-items: flex-start;
}

.learning-article-infobox {
  font-size: 0.9rem;
  border-radius: 0.75rem;
  border: 1px solid var(--panel-border);
  background: var(--panel-bg);
  padding: 0.75rem 0.9rem;
  max-width: 280px;
}

.learning-article-infobox table {
  width: 100%;
  border-collapse: collapse;
}

/* Stronger dividers between rows */
.learning-article-infobox th,
.learning-article-infobox td {
  padding: 0.25rem 0.2rem;
  border-bottom: 1px solid color-mix(
    in srgb,
    var(--border-color) 70%,
    var(--color-text) 30%
  );
  vertical-align: top;
}

/* Don’t draw a bottom border after the last row */
.learning-article-infobox tr:last-child th,
.learning-article-infobox tr:last-child td {
  border-bottom: none;
}

/* Light zebra striping to make rows pop a bit more */
.learning-article-infobox tr:nth-child(odd) {
  background: color-mix(in srgb, var(--panel-bg) 80%, var(--color-bg) 20%);
}

.learning-article-infobox img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 0 0.5rem;
  border-radius: 0.5rem;
}

/* Responsive */

@media (max-width: 900px) {
  .learning-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .learning-article {
    margin-top: 0.9rem;
  }
  
  .learning-article-layout {
    grid-template-columns: 1fr;
  }

  .learning-article-infobox {
    max-width: none;
  }
}