/* Components: buttons, tags, filter, project cards, messages */

/* Buttons */
.button,
.nav-toggle {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-weight: 500;
  line-height: var(--leading-tight);
  text-decoration: none;
  border: var(--border-width) solid var(--color-accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.button {
  color: var(--color-on-accent);
  background-color: var(--color-accent);
}

.button:hover {
  color: var(--color-on-accent);
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  text-decoration: none;
}

.button--secondary,
.nav-toggle {
  color: var(--color-text);
  background-color: transparent;
  border-color: var(--color-border);
}

.button--secondary:hover,
.nav-toggle:hover {
  color: var(--color-text);
  background-color: var(--color-surface);
  border-color: var(--color-muted);
}

.nav-toggle {
  font-size: var(--text-sm);
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  list-style: none;
}

.tag {
  display: inline-block;
  padding: 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-muted);
  background-color: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
}

/* Tag filter */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.tag-filter__button {
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-muted);
  background-color: transparent;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.tag-filter__button:hover {
  color: var(--color-text);
  border-color: var(--color-muted);
}

.tag-filter__button[aria-pressed="true"] {
  color: var(--color-on-accent);
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.filter-status {
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.filter-status:empty {
  display: none;
}

/* Project grid and card */
.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: var(--border-width) solid var(--color-border);
}

.project-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
}

.project-card__title {
  font-size: var(--text-lg);
}

.project-card__link {
  color: var(--color-text);
  text-decoration: none;
}

.project-card__link:hover {
  color: var(--color-text);
  text-decoration: underline;
}

.project-card__summary {
  flex: 1;
}

/* Project meta (status, date) */
.project-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.status {
  padding: 0 var(--space-2);
  text-transform: capitalize;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-pill);
}

/* Link list (repo, demo) */
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

/* Github mark as leading icon in the Source button. The mark is white, so
   it sits on a small dark badge to stay visible on light and dark surfaces. */
.link-list__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  margin-right: var(--space-2);
  vertical-align: middle;
  background-color: var(--color-icon-badge);
  border-radius: 50%;
}

.link-list__badge img {
  display: block;
  width: 1.125rem;
  height: 1.125rem;
}

/* Project detail */
.back-link {
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
}

.project-detail__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.project-detail__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
}

.project-detail__summary {
  max-width: var(--measure);
  font-size: var(--text-lg);
}

/* Teapot illustration (404 / 418 page) */
.teapot {
  width: 8rem;
  max-width: 100%;
  height: auto;
  margin-block: var(--space-5);
  color: var(--color-accent);
}

/* Messages (loading, empty, error) */
.message {
  grid-column: 1 / -1;
  padding: var(--space-4);
  color: var(--color-muted);
  border: var(--border-width) dashed var(--color-border);
  border-radius: var(--radius);
}

.message--error {
  color: var(--color-error);
  border-color: var(--color-error);
}

/* Project content layouts (master template: html/project-template.html)
   Reusable building blocks for writing a project write-up. Copy the markup
   you need into a project page; the styles live here so they stay consistent. */

.project-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.project-section > h2 {
  margin-bottom: var(--space-4);
}

/* Figure: image with optional caption */
.figure {
  margin: 0;
}

.figure img {
  width: 100%;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
}

.figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* Small image: sits inline within a prose block, constrained width */
.figure--small {
  max-width: 20rem;
  margin-block: var(--space-4);
}

/* Full-width image: spans the full content column */
.figure--full {
  width: 100%;
}

/* Split: text and image side by side (stacks on small screens) */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

/* Image gallery: a row of figures */
.figure-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

/* Callout: a highlighted note or warning */
.callout {
  padding: var(--space-4);
  background-color: var(--color-surface);
  border-left: 0.25rem solid var(--color-accent);
  border-radius: var(--radius);
}

.callout--warning {
  border-left-color: var(--color-error);
}

/* Code block */
.code-block {
  padding: var(--space-4);
  overflow-x: auto;
  background-color: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
}

/* Table: wrapped so it scrolls horizontally on small screens */
.table-wrap {
  overflow-x: auto;
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table-wrap th,
.table-wrap td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: var(--border-width) solid var(--color-border);
}

.table-wrap th {
  font-weight: 600;
}