/* === Course-specific styles === */

/* Hero heading (homepage) */
.hero-heading {
  font-size: 4.5rem;
  line-height: 1.05;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3xl);
}
.hero-muted {
  color: color-mix(in srgb, var(--color-primary) 50%, transparent);
}
@media (max-width: 768px) {
  .hero-heading {
    font-size: 2.2rem;
  }
}

/* Chapter layout (two-col: title left, content right) */
.chapter-layout .chapter-page-title {
  margin: 0;
  font-size: 1.5rem;
}
.chapter-layout .chapter-label {
  display: block;
  font-size: var(--font-size-medium);
  color: var(--color-quaternary);
  font-weight: var(--font-weight-regular);
  margin-top: var(--space-xs);
}
.chapter-layout > .two-col-label {
  position: sticky;
  top: 3.5rem;
  align-self: start;
}
.chapter-layout .two-col-content > p:first-child {
  font-size: 1.4rem;
  font-weight: var(--font-weight-regular);
  line-height: 1.35;
  margin-top: 0;
}

/* Course kicker (type label above title) */
.course-kicker {
  display: block;
  font-size: var(--font-size-medium);
  color: var(--color-quaternary);
  font-weight: var(--font-weight-regular);
  margin-top: var(--space-xs);
}

/* Course header */
.course-header .course-title {
  margin: 0;
  font-size: 1.5rem;
}
.course-header .course-subtitle {
  margin-top: 0;
}

/* Project meta table (matches stoll.studio pattern) */
.project-meta {
  margin-top: 0.75rem;
  margin-bottom: var(--space-xl);
}
.project-meta table {
  margin: 0;
  border: none;
  width: 100%;
}
.project-meta tr {
  border-top: 1px solid var(--color-divider);
}
.project-meta tr:first-child {
  border-top: none;
}
.project-meta tr:first-child th,
.project-meta tr:first-child td {
  padding-top: 0;
}
.project-meta th,
.project-meta td {
  border: none;
  padding: var(--space-sm) 0;
  vertical-align: top;
  background: transparent !important;
}
.project-meta th {
  font-weight: var(--font-weight-semibold);
  padding-right: var(--space-lg);
  white-space: nowrap;
  color: var(--color-quaternary);
  font-size: var(--font-size-medium);
}
.project-meta td {
  color: var(--color-primary);
  font-size: var(--font-size-medium);
  font-weight: var(--font-weight-regular);
}

/* Chapter list on course overview */
.chapter-list {
  margin-top: var(--space-xl);
}
.chapter-list h2 {
  margin-bottom: var(--space-md);
}
.chapter-card {
  display: grid;
  grid-template-columns: var(--space-xl) 1fr;
  align-items: baseline;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-divider);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.15s;
}
.chapter-card:last-child {
  border-bottom: none;
}
.chapter-card:hover {
  text-decoration: none;
  background-color: var(--color-surface-emphasized);
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
  margin-left: calc(-1 * var(--space-sm));
  margin-right: calc(-1 * var(--space-sm));
}
.chapter-order {
  grid-column: 1;
  grid-row: 1;
  color: var(--color-quaternary);
  font-size: var(--font-size-medium);
}
.chapter-title {
  grid-column: 2;
  grid-row: 1;
  font-weight: 550;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 0.3em;
  text-decoration-thickness: 0.1em;
}
.chapter-desc {
  grid-column: 2;
  grid-row: 2;
  margin-top: var(--space-xs);
  font-size: 0.9rem;
  color: var(--color-secondary);
}

/* Chapter navigation (prev/next) */
.chapter-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-3xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-divider);
}
.chapter-prev,
.chapter-next {
  color: var(--color-link);
  text-decoration: none;
  font-size: 0.9rem;
}
.chapter-prev:hover,
.chapter-next:hover {
  text-decoration: underline;
}
.chapter-next {
  margin-left: auto;
}

/* === Callout blocks (converted from Obsidian > [!note]) === */
.callout {
  padding: var(--space-md) 1.25rem;
  margin: var(--space-lg) 0;
  border-left: 3px solid var(--color-accent-1);
  background-color: var(--color-surface-emphasized);
  border-radius: 0 4px 4px 0;
}
.callout p:last-child {
  margin-bottom: 0;
}
.callout ol li,
.callout ul li {
  margin-bottom: var(--space-sm);
}
.callout ol li:last-child,
.callout ul li:last-child {
  margin-bottom: 0;
}

/* === Multi-column content grid === */
.columns {
  display: grid;
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}
.columns-2 {
  grid-template-columns: 1fr 1fr;
}
.columns-3 {
  grid-template-columns: 1fr 1fr 1fr;
}
.columns-4 {
  grid-template-columns: repeat(4, 1fr);
}
.columns-1-2 {
  grid-template-columns: 1fr 2fr;
}
.columns-2-1 {
  grid-template-columns: 2fr 1fr;
}
.columns img {
  margin-bottom: var(--space-sm);
}
.columns > div > :first-child {
  margin-top: 0;
}

@media (max-width: 768px) {
  .columns-2,
  .columns-3,
  .columns-1-2,
  .columns-2-1 {
    grid-template-columns: 1fr;
  }
  .columns-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === Course content images === */
.chapter img {
  border-radius: 4px;
}

/* Figures */
.figure {
  margin: var(--space-lg) 0;
}
.figure img {
  margin-bottom: 0;
}
.figure figcaption {
  font-size: var(--font-size-small);
  color: var(--color-quaternary);
  margin-top: var(--space-sm);
}
/* === Tools list === */
.tool-card {
  display: block;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-divider);
  text-decoration: none;
  color: inherit;
}
.tool-card:last-child {
  border-bottom: 1px solid var(--color-divider);
}
.tool-card:hover {
  text-decoration: none;
}
.tool-card h3 {
  margin-top: 0;
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}
.tool-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-secondary);
}

/* === Course overview card === */
.course-card {
  display: block;
  padding: 1.25rem 0;
  border-top: 1px solid var(--color-divider);
  text-decoration: none;
  color: inherit;
}
.course-card:last-child {
  border-bottom: 1px solid var(--color-divider);
}
.course-card:hover {
  text-decoration: none;
}
.course-card h3 {
  margin-top: 0;
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}
.course-card .course-card-meta {
  font-size: var(--font-size-small);
  color: var(--color-quaternary);
  margin-bottom: var(--space-xs);
}
.course-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-secondary);
}

/* === Project-style card grid (image cards) === */
.project-card {
  margin-bottom: var(--space-2xl);
}
.project-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}
.project-card a:hover {
  text-decoration: none;
}
.project-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin-bottom: 0.75rem;
  border-radius: 4px;
  overflow: hidden;
}
.project-card h3 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.1rem;
}
.project-card a:hover h3 {
  color: var(--color-link);
}
.project-card p {
  margin: 0;
  font-size: var(--font-size-medium);
  color: var(--color-secondary);
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-md);
}
.project-grid .project-card {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* === Content table (generic two-column list style, default for content tables) === */
.content-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  border: none;
}
.content-table td {
  padding: var(--space-sm) var(--space-md) var(--space-sm) 0;
  vertical-align: top;
  border: none;
  border-bottom: 1px solid var(--color-divider);
  background: transparent !important;
  line-height: var(--line-height-tight);
}
.content-table tr:first-child td {
  padding-top: 0;
}
p + .content-table tr:first-child td,
h2 + .content-table tr:first-child td,
h3 + .content-table tr:first-child td {
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-divider);
}
.content-table tr:last-child td {
  border-bottom: none;
  padding-bottom: 0;
}
.content-table tbody tr:nth-child(odd) td {
  background: transparent !important;
}
.content-table .pl-year {
  white-space: nowrap;
  color: var(--color-secondary);
  width: 1%;
}
.content-table .pl-name strong {
  display: block;
}
.content-table .pl-name a {
  text-decoration: none !important;
}
.content-table .pl-name a:hover {
  text-decoration: underline !important;
}
.content-table .pl-name small {
  color: var(--color-quaternary);
}
.content-table .pl-desc {
  color: var(--color-secondary);
}

@media (max-width: 768px) {
  .content-table .pl-year { display: none; }
  .content-table .pl-name::after {
    content: attr(data-year);
    display: block;
    font-size: 0.75rem;
    color: var(--color-quaternary);
    margin-top: 0.2rem;
  }
}

/* === Course subnav (Curriculum / Student Work toggle) === */
.course-subnav {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.course-subnav a,
.course-subnav span {
  font-family: var(--font-navigation);
  font-size: var(--font-size-medium);
  font-weight: var(--font-weight-regular);
  color: var(--color-link);
}
.course-subnav a {
  text-decoration: none;
}
.course-subnav a:hover,
.course-subnav a.active,
.course-subnav span.active {
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 0.1em;
}
.course-subnav span.inactive {
  color: var(--color-quaternary);
  cursor: default;
}
.course-subnav span.inactive small {
  color: color-mix(in srgb, var(--color-quaternary) 50%, transparent);
  font-size: 0.6em;
  vertical-align: super;
}

/* === Summary "At a glance" standfirst === */
.what-if + .two-col .two-col-content > p:first-child {
  font-size: 1.25rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
}

/* === "What if" question block === */
.what-if {
  margin-bottom: var(--space-xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-divider);
}
.what-if p {
  font-size: 4.5rem;
  font-style: normal;
  font-weight: var(--font-weight-semibold);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin: 0;
}

@media (max-width: 768px) {
  .what-if p {
    font-size: 2.2rem;
  }
  .course-subnav {
    gap: var(--space-md);
  }
}

/* === Student project header (matches stoll.studio project pattern) === */
.student-project .project-title {
  font-size: 1.5rem;
  margin: 0;
}
.student-project .project-subtitle {
  margin-top: 0;
}
.project-header-two-col {
  margin-bottom: 0;
}

/* === Student project links section === */
.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-medium);
}

/* === Showcase list === */
.showcase-list {
  margin: 0;
}
.showcase-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 0 var(--space-md);
  align-items: baseline;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-divider);
  text-decoration: none !important;
  color: inherit;
  transition: background-color 0.15s;
}
.showcase-item:last-child {
  border-bottom: none;
}
.showcase-item:hover {
  background-color: var(--color-surface-emphasized);
  padding-left: var(--space-sm);
  padding-right: var(--space-sm);
  margin-left: calc(-1 * var(--space-sm));
  margin-right: calc(-1 * var(--space-sm));
}
.showcase-name {
  display: flex;
  flex-direction: column;
}
.showcase-name small {
  color: var(--color-quaternary);
}
.showcase-desc {
  color: var(--color-secondary);
}
.showcase-item.tba {
  opacity: 0.35;
}

/* === Poster grid (showcase page) === */
.poster-grid {
  margin-bottom: var(--space-md);
}
.poster-card {
  display: block;
  text-decoration: none !important;
  color: inherit;
}
.poster-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1.414;
  object-fit: cover;
  display: block;
  border-radius: 2px;
  margin-bottom: 0;
  transition: opacity 0.15s;
}
.poster-card:hover img {
  opacity: 0.8;
}
.poster-name {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-secondary);
  margin-top: var(--space-sm);
}
.two-col-content > .poster-grid {
  margin-top: 0.6rem;
}

/* === Footnotes === */
.footnotes {
  margin-top: var(--space-2xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-divider);
}
.footnotes ol {
  padding-left: 0;
  margin: 0;
  list-style-position: inside;
}
.footnotes li {
  font-size: var(--font-size-small);
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
}
.footnotes li:last-child {
  margin-bottom: 0;
}
.footnotes a {
  color: var(--color-link);
  overflow-wrap: break-word;
}
sup a {
  text-decoration: none;
  color: var(--color-link);
}

/* === Image borders for dark/vibrant themes === */
[data-theme="dark"] .project-card img,
[data-theme="vibrant"] .project-card img,
[data-theme="dark"] .chapter img,
[data-theme="vibrant"] .chapter img,
[data-theme="dark"] .course img,
[data-theme="vibrant"] .course img {
  border: 1px solid var(--color-border);
}