/* ============================================================================
   SHARED — SESSION / SPEAKER / SPONSOR DETAIL
   The dialog CONTENTS: a session's description and links, a speaker's list of
   talks, a sponsor's history. Shared because the schedule shows these to a
   reader and the editor shows the same shapes while editing them.

   These were ported out of the legacy schedule.css for the editor first, and
   converted then — font sizes onto the --step-* scale, radii to 2px. They moved
   here rather than being ported a second time for the schedule, so there is one
   copy to change. Same reason as section-modal.css and section-venue-map.css.
   ========================================================================= */

@layer section {
  .sponsor-logo-surface-text {
    flex-direction: column;
    gap: 0.15rem;
  }

  .event-promo-image-frame.is-loading::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(226, 232, 240, 0.65);
  }

  .event-promo-image-frame.is-loading .event-promo-image {
    opacity: 0;
  }

  .design-primary .event-promo-action {
    background: var(--surface-2);
    border-color: var(--line-0);
    color: var(--text-1);
  }

  .design-primary .event-promo-action:focus-visible {
    background: var(--surface-1);
    border-color: var(--accent);
    color: var(--text-0);
  }

  .speaker-modal-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.7rem;
    margin-bottom: 0.6rem;
  }

  .speaker-modal-head .session-modal-title {
    margin-bottom: 0;
    flex: 1 1 100%;
  }

  .speaker-modal-head .session-modal-subtitle {
    margin-bottom: 0;
    flex: 1 1 100%;
  }

  .speaker-modal-head .speaker-modal-count-badge {
    align-self: flex-start;
  }

  .session-modal-meta {
    color: var(--text-2);
    font-size: var(--step-0);
    margin-bottom: 0.28rem;
    display: grid;
    grid-template-columns: 6.7rem minmax(0, 1fr);
    align-items: start;
    column-gap: 0.5rem;
    line-height: 1.4;
  }

  .speaker-session-grid {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 0.7rem;
  }

  .speaker-session-title {
    margin: 0 0 0.35rem 0;
    font-size: var(--step-0);
    line-height: 1.35;
    color: var(--text-0);
  }

  .speaker-session-meta {
    margin: 0 0 0.25rem 0;
    font-size: var(--step--1);
    color: var(--text-2);
  }

  .speaker-session-summary {
    margin: 0.45rem 0 0.15rem 0;
    font-size: var(--step--1);
    color: var(--text-1);
    line-height: 1.45;
  }

  .sponsor-history-copy .speaker-session-title {
    margin-bottom: 0.25rem;
  }

  /* ── The sponsor-history rail: BASE RULES, restored ───────────────────────
   * ⚠ THE OVERRIDES BELOW SURVIVED A STYLESHEET MERGE AND THE STRUCTURE DID
   * NOT — the same defect already recorded for the sponsor tiles on the main
   * schedule page, one surface over. Each of these classes was still MENTIONED
   * in CSS (a link colour, a title margin, a text-variant), which is why a
   * per-class audit called them styled; what had gone was the rule that laid
   * them out. The symptoms: logos with no plate behind them, and an actions row
   * rendering as "Sponsor informationEvent websiteView schedule" with no gap
   * between the links at all.
   *
   * Derived from `.sponsor-logo-surface` — the main page's plate, which WAS
   * restored — rather than recovered from the deleted sheet, which is gone from
   * disk. Same family, sized for a 405px rail. */
  .sponsor-history-head {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .sponsor-history-copy {
    flex: 1;
    /* Without this a long event name refuses to wrap and widens the flex item
     * past the rail instead. */
    min-width: 0;
  }

  /* The plate. Smaller than the 184x104 main-page card because the rail is a
   * column, but the same border/background/centring so a logo reads as the
   * same object in both places. */
  .sponsor-history-logo {
    flex: none;
    width: 96px;
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--rule-0);
    background: var(--paper-1);
  }

  .sponsor-history-logo .sponsor-logo-image {
    max-width: 100%;
    max-height: 44px;
    /* Logos are every aspect ratio there is; contain keeps them undistorted. */
    object-fit: contain;
  }

  /* The run-together links. */
  .sponsor-history-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.9rem;
    margin-top: 0.5rem;
  }


  .sponsor-history-actions .session-modal-link {
    font-size: var(--step--1);
    color: var(--text-2);
  }

  .sponsor-history-actions .session-modal-link:hover {
    color: var(--accent);
    opacity: 1;
  }

  .sponsor-history-logo.sponsor-logo-surface-text .sponsor-logo-name {
    font-size: var(--step--2);
    line-height: 1.2;
    word-break: break-word;
  }

  .session-modal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 0.75rem 0;
  }

  .session-modal-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0;
    border: none;
    background: transparent;
    color: var(--accent);
    font-size: var(--step--1);
    font-weight: 500;
    line-height: 1.2;
    text-decoration: none;
    transition:
      color 120ms ease,
      opacity 120ms ease;
  }

  button.session-modal-link {
    appearance: none;
    cursor: pointer;
    font: inherit;
  }

  .session-modal-link:hover {
    color: var(--accent-strong);
    opacity: 0.8;
  }

  .session-modal-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 2px;
  }

  .session-description-preview p {
    margin: 0 0 0.35rem 0;
  }

  .session-description-preview h6 {
    margin: 0.7rem 0 0.38rem 0;
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-0);
  }

  .session-description-preview h1 {
    font-size: var(--step-1);
  }

  .session-description-preview h2 {
    font-size: var(--step-1);
  }

  .session-description-preview h3 {
    font-size: var(--step-0);
  }

  .session-description-preview h4 {
    font-size: var(--step-0);
  }

  .session-description-preview h5 {
    font-size: var(--step--1);
  }

  .session-description-preview h6 {
    font-size: var(--step--1);
  }

  .session-description-preview h6 {
    border-left: 2px solid var(--line-0);
    padding-left: 0.5rem;
  }

  .session-description-preview a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-thickness: 1.4px;
    text-underline-offset: 2px;
    font-weight: 500;
  }

  .session-description-preview a:hover {
    color: var(--accent-strong);
  }

  .session-description-preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0 0.95rem 0;
    border: 1px solid var(--line-0);
    border-radius: 2px;
    overflow: hidden;
    font-size: var(--step--1);
  }

  .session-description-preview th {
    text-align: left;
    background: var(--surface-2);
    color: var(--text-0);
    font-weight: 700;
    padding: 0.45rem 0.55rem;
    border-bottom: 1px solid var(--line-0);
  }

  .session-description-preview td {
    padding: 0.45rem 0.55rem;
    border-bottom: 1px solid var(--line-0);
    color: var(--text-1);
    vertical-align: top;
  }

  .session-description-preview tbody tr:last-child td {
    border-bottom: 0;
  }

  .session-description-preview p:last-child {
    margin-bottom: 0;
  }

  .session-description-preview blockquote {
    margin: 0.7rem 0 0.9rem 0;
    padding: 0.5rem 0.75rem;
    border-left: 3px solid var(--line-0);
    background: var(--surface-2);
    border-radius: 2px;
    color: var(--text-1);
  }

  .session-description-preview blockquote p {
    margin: 0;
  }

  .session-description-preview ul {
    margin: 0.2rem 0 0.45rem 1.1rem;
  }

  .session-description-preview ul {
    list-style: disc;
  }

  .session-description-preview li {
    margin: 0 0 0.2rem 0;
  }

  .session-description-preview ul:last-child {
    margin-bottom: 0;
  }

  .session-description-preview pre {
    margin: 0.75rem 0 0.95rem 0;
    padding: 0.75rem 0.9rem;
    border-radius: 2px;
    border: 1px solid var(--line-0);
    background: var(--surface-2);
    color: var(--text-0);
    overflow-x: auto;
    line-height: 1.45;
    font-size: var(--step--1);
  }

  .session-description-preview pre:last-child {
    margin-bottom: 0;
  }

  .session-description-preview pre code {
    display: block;
    white-space: pre;
    background: transparent;
    border: 0;
    padding: 0;
    color: inherit;
    font-family:
      ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  }

  .session-description-preview code {
    background: var(--surface-2);
    border: 1px solid var(--line-0);
    border-radius: 2px;
    padding: 0.08rem 0.28rem;
    color: var(--text-0);
    font-size: var(--step--1);
  }

  .sponsor-modal-body .speaker-session-grid {
    margin-top: 0;
  }

  .now-next-dot.is-live {
    background: #16a34a;
    box-shadow: 0 0 0 3px color-mix(in srgb, #16a34a 25%, transparent);
    animation: now-pulse 1.8s ease-in-out infinite;
  }

  .session-modal-meta {
    grid-template-columns: 1fr;
    row-gap: 0.08rem;
  }

  /* --- SPONSOR TILES - RESTORED STRUCTURE -----------------------------------
     A regression, and an instructive one. The converted sheets had rules for
     these tiles, but only the DECORATION: border, radius, shadow, colour. The
     STRUCTURE - the 184px card, the 104px plate, the grid and flex layout that
     centres a logo inside it - lived only in the legacy schedule.css, so pruning
     that sheet took the tiles apart on both the schedule and the editor.

     The plate matters for a reason that is easy to miss: sponsor logos are mostly
     white or transparent, and it is what gives them a uniform surface to sit on.
     Without it they float on the page background at whatever size they happen to
     be.

     This is defect class 7 in docs/todo.md - the override rules came across and
     the structure did not. The port repeated it, because the analysis asked
     whether a CLASS was styled elsewhere, not whether the DECLARATIONS were.

     Converted on restore: sizes onto the --step-* scale, the plate's gradient to
     a flat --paper-1, the blue-grey hairline to --rule-0, radius and shadow
     dropped. The schedule scopes its own overrides under .sch-sponsors and still
     wins over these.
     ---------------------------------------------------------------------- */

  .sponsor-tier-section {
    display: grid;
    gap: 0.85rem;
  }

  .sponsor-tier-heading {
    margin: 0;
    color: var(--text-2);
    font-size: var(--step--1);
    font-weight: 800;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
  }

  .sponsor-logo-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.85rem;
    align-items: stretch;
    width: 100%;
  }

  .sponsor-card {
    display: grid;
    gap: 0.55rem;
    justify-items: center;
    flex: 0 0 184px;
    width: 184px;
    max-width: 184px;
    align-content: start;
    text-align: center;
  }

  .sponsor-logo-surface {
    width: 100%;
    min-height: 104px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1rem;
    border: 1px solid var(--rule-0);
    background: var(--paper-1);
    text-decoration: none;
  }

  button.sponsor-logo-surface {
    appearance: none;
    cursor: pointer;
    font: inherit;
  }

  .sponsor-logo-surface:hover,
  .sponsor-logo-surface:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(126, 167, 205, 0.95);
    outline: none;
  }

  .sponsor-logo-image {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 148px;
    max-height: 68px;
    object-fit: contain;
    object-position: center;
  }

  /* Text fallback when a sponsor has no logo file: name on the first line,
  subtitle on a second. */
  .sponsor-logo-surface-text {
    flex-direction: column;
    gap: 0.15rem;
  }

  /* Fixed dark ink — the sponsor plate is a light card in every theme, so
  theme text tokens (near-white in the dark design) would be invisible. */
  .sponsor-logo-name {
    color: #12263c;
    font-size: var(--step-0);
    font-weight: 700;
    line-height: 1.25;
    text-align: center;
  }

  .sponsor-logo-subtitle {
    color: #56697d;
    font-size: var(--step--1);
    font-weight: 500;
    line-height: 1.3;
    text-align: center;
  }

  .sponsor-card-title {
    display: flex;
    width: 100%;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
    color: var(--text-1);
    font-size: var(--step--1);
    font-weight: 650;
    line-height: 1.35;
    text-align: center;
    text-decoration: none;
  }

  button.sponsor-card-title {
    appearance: none;
    background: transparent;
    border: 0;
    padding: 0;
    cursor: pointer;
    font: inherit;
    text-align: center;
  }

  .sponsor-card-title:hover,
  .sponsor-card-title:focus-visible {
    color: var(--text-0);
    outline: none;
  }

  .design-primary .sponsor-tier-heading {
    color: var(--text-2);
  }

  .design-primary .sponsor-logo-surface {
    background: var(--surface-2);
    border-color: var(--line-0);
  }

  .design-primary .sponsor-logo-surface:hover,
  .design-primary .sponsor-logo-surface:focus-visible {
    border-color: var(--accent);
  }

  .design-primary .sponsor-card-title {
    color: var(--text-1);
  }

  .design-primary .sponsor-card-title:hover,
  .design-primary .sponsor-card-title:focus-visible {
    color: var(--text-0);
  }

  /* Name-tile fallback in the small history box: shrink to fit and wrap. */
  .sponsor-history-logo.sponsor-logo-surface-text .sponsor-logo-name {
    font-size: var(--step--2);
    line-height: 1.2;
    word-break: break-word;
  }
}