/* Artifact library and artifact card composition styles.
 * Owner: design/compositions/artifact_library.jinja and artifact projection cards.
 * This carrier owns artifact-* only; route mechanics stay in NavigationModel/ActionTrigger.
 */

/* ============================================================
 * artifact-library — workspace-owned ArtifactVersion index
 * ============================================================ */

.artifact-library {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-7) var(--space-10);
}

.artifact-library-head {
  margin-bottom: var(--space-7);
}

.artifact-library-title {
  margin: var(--space-3) 0 var(--space-3);
  font-family: var(--type-display-2-family);
  font-size: var(--type-display-2-size);
  line-height: var(--type-display-2-line);
  color: var(--color-text);
}

.artifact-library-sub {
  max-width: 720px;
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--type-lead-size);
  line-height: var(--type-lead-line);
}

.artifact-library-summary {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--type-eyebrow-family);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.artifact-library-summary span {
  padding: 5px 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radii-sm);
}

.artifact-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}

.artifact-library-card,
.artifact-library-none {
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radii-lg);
  padding: var(--space-5);
}

.artifact-library-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.artifact-library-status {
  font-family: var(--type-eyebrow-family);
  font-size: var(--type-eyebrow-size);
  letter-spacing: var(--type-eyebrow-tracking);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.artifact-library-card-title {
  margin: 0 0 var(--space-3);
  font-family: var(--type-title-family);
  font-size: var(--type-subtitle-size);
  line-height: var(--type-subtitle-line);
  color: var(--color-text);
}

.artifact-library-meta,
.artifact-library-empty {
  color: var(--color-text-muted);
  font-size: var(--type-small-size);
  line-height: var(--type-body-line);
}

.artifact-library-version {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  color: var(--color-text-muted);
  font-size: var(--type-small-size);
}

.artifact-library-version code {
  font-family: var(--type-mono-family);
  color: var(--color-text);
}

.artifact-library-actions {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.artifact-library-actions a,
.artifact-library-actions [data-primitive="action_trigger"],
.artifact-library-none a,
.artifact-library-none [data-primitive="action_trigger"] {
  color: var(--color-orange);
  text-decoration: none;
  font-weight: 600;
  padding: 0;
  letter-spacing: 0;
  text-transform: none;
}

.artifact-library-actions a:hover,
.artifact-library-actions [data-primitive="action_trigger"]:hover,
.artifact-library-none a:hover,
.artifact-library-none [data-primitive="action_trigger"]:hover {
  text-decoration: underline;
}

/* ============================================================
 * Example overview — summary cards
 * One summary card per artifact (title + format + summary +
 * CTAs).  The previous inline iframe stack was replaced in
 * step-30 P0.G: nesting twelve full standalone reader pages
 * (each with its own topnav + footer + banner) inside one page
 * violated the "no nested pages" principle.  The Preview
 * popover loads the chrome-free PreviewProjection only on
 * click.
 * ============================================================ */

.artifact-section-head {
  margin-bottom: var(--space-5);
}
.artifact-section-title {
  max-width: 1180px; margin: 48px auto 6px; padding: 0 24px;
  font: 600 11px Calibri, sans-serif;
  letter-spacing: 2.2px; text-transform: uppercase;
  color: var(--orange);
}
.artifact-section-sub {
  max-width: 1180px; margin: 0 auto 22px; padding: 0 24px;
  font-size: 13.5px; line-height: 1.55; color: var(--slate);
  max-width: 740px;
}
.artifact-section { padding-bottom: 32px; }

/* Single-example overview cards (step-30 P0.G).  Pre-step-30 the
 * overview rendered an artifact-jump-nav + artifact-stack with one
 * <iframe class="artifact-stack-frame"> per artifact, eagerly
 * loading twelve standalone reader pages on every visit.  That
 * violated the "no nested standalone pages" principle and was an
 * absurd network/paint cost.  The new shape: one summary card per
 * artifact (title + format + summary + CTAs), with an in-place
 * Preview popover loading the chrome-free PreviewProjection only
 * when the user clicks.
 */
.artifact-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
}

.artifact-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radii-lg);
  /* Compose --shell-topbar-h so anchor-navigated cards land below
     the sticky topbar, not under it. */
  scroll-margin-top: calc(var(--shell-topbar-h) + var(--space-3));
  box-shadow: var(--shadow-card);
  transition: transform var(--motion-duration-fast) var(--motion-ease-standard),
              border-color var(--motion-duration-fast) var(--motion-ease-standard),
              box-shadow var(--motion-duration-fast) var(--motion-ease-standard);
}
.artifact-card:hover {
  border-color: var(--color-orange);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(8, 26, 46, 0.10);
}

.artifact-card-head {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-3);
  align-items: center;
}
.artifact-card-icon {
  font-size: 22px;
  line-height: 1;
  text-align: center;
  color: var(--color-text-muted);
}
.artifact-card-titles { min-width: 0; }
.artifact-card-format {
  font-family: var(--type-eyebrow-family);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 4px;
}
.artifact-card-title {
  font-family: var(--type-title-family);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
  margin: 0;
}
.artifact-card-summary {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.artifact-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-rule);
}
.artifact-card-action {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-family: var(--type-button-family);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-rule);
  border-radius: var(--radii-md);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--motion-duration-fast) var(--motion-ease-standard),
              background var(--motion-duration-fast) var(--motion-ease-standard),
              border-color var(--motion-duration-fast) var(--motion-ease-standard);
}
.artifact-card-action:hover {
  color: var(--color-action);
  border-color: var(--color-action);
}
.artifact-card-action-primary {
  color: var(--color-text-inverse);
  background: var(--color-orange);
  border-color: var(--color-orange);
}
.artifact-card-action-primary:hover {
  background: #B53F00;
  border-color: #B53F00;
  color: var(--color-text-inverse);
}
.artifact-card-action-icon { font-size: 12px; padding: 4px 10px; }

.artifact-card--unavailable {
  opacity: 0.55;
  cursor: not-allowed;
}
.artifact-card--unavailable:hover {
  transform: none;
  border-color: var(--color-rule);
  box-shadow: var(--shadow-card);
}
.artifact-card-action-disabled {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-family: var(--type-button-family);
  font-size: 11px;
  font-weight: 500;
  font-style: italic;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}