#spue-ma-ad {
  --festival-ad-ready: 1;

  grid-area: advertisement;
  margin: var(--spacing-regular) auto 0;
  padding: 1.6rem 2rem;
  width: min(calc(100vw - 2 * var(--spacing-regular) - 1.5rem), var(--max-width));
  max-width: calc(100% - env(safe-area-inset-left) - env(safe-area-inset-right));
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  grid-template-areas: "logo copy" "footer footer";
  align-items: center;
  gap: 1.2rem 2rem;
  border: var(--width-of-minimum-borders) solid #496258;
  border-radius: var(--radius-of-borders);
  background: #20352e;
  color: var(--foreground-color);

  &[hidden] { display: none; }

  img {
    grid-area: logo;
    width: 100%;
    height: auto;
    /* Balance the logo's greater visual weight below its geometric centre. */
    transform: translateY(-14%);
  }

  .copy {
    grid-area: copy;
    min-width: 0;
    display: grid;
    gap: 0.3rem;
  }

  .footer {
    grid-area: footer;
    container: festival-footer / inline-size;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.2rem;
    font-size: 1.4rem;
    line-height: 1.4;
  }

  strong { padding-right: 3.2rem; font-size: 1.8rem; line-height: 1.3; }
  .details { font-size: 1.4rem; line-height: 1.5; font-variant-numeric: tabular-nums; opacity: 0.85; }
  .organizer { opacity: 0.75; white-space: nowrap; }
  .cta {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    border-radius: 0.4rem;
    color: #f4d264;
    font-weight: 600;
    text-decoration: none;
    text-align: right;
    white-space: nowrap;
  }

  svg { display: block; width: 2rem; height: 2rem; fill: currentColor; }

  > button {
    all: unset;
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    box-sizing: border-box;
    width: 4.8rem;
    height: 4.8rem;
    display: grid;
    place-items: center;
    border-radius: 0.8rem;
    line-height: 1;
    cursor: pointer;

    /* Keep the smaller glyph aligned with the login icon's visible right edge. */
    svg { width: 2.4rem; height: 2.4rem; translate: 0.35rem 0; }
  }

  :is(.cta, button):focus-visible { outline: var(--outline); outline-offset: 0.2rem; }
  @media (hover: hover) and (pointer: fine) {
    > button:hover { color: var(--color-blue); }
  }
  > button:active { color: var(--color-blue); }
  .cta:hover { text-decoration: underline; }
}

/* Break both footer labels together before they would collide. */
@container festival-footer (max-width: 40rem) {
  #spue-ma-ad {
    .organizer > span { display: block; }
    .cta .label > span { display: block; }
  }
}

@media (min-width: 750px) and (min-height: 500px) {
  body:is(body):has(> #spue-ma-ad:not([hidden])) {
    grid-template-rows: auto auto auto 1fr auto;
    grid-template-areas: "nav-header" "advertisement" "header" "main" "nav-footer";
  }
}

@media (max-width: 749px) or (max-height: 499px) {
  body:is(body):has(> #spue-ma-ad:not([hidden])) {
    grid-template-rows: auto auto var(--spacing-regular) auto 1fr;
    grid-template-areas: "header" "advertisement" "." "slideshow" "main";
  }

  #spue-ma-ad {
    margin: 0;
    padding: 1.2rem max(1.6rem, env(safe-area-inset-right)) 1.2rem max(1.6rem, env(safe-area-inset-left));
    width: 100%;
    max-width: none;
    grid-template-columns: 6.4rem minmax(0, 1fr);
    gap: 1.2rem;
    border-inline: none;
    border-radius: 0;

    strong { font-size: 1.7rem; }
    .details { font-size: 1.25rem; }
    .footer { font-size: 1.25rem; }
    .cta svg { width: 1.6rem; height: 1.6rem; }

    > button {
      top: 0.2rem;
      right: env(safe-area-inset-left);
      padding-right: 0.6rem;
      width: calc(var(--nav-button-size) + 2 * var(--spacing-minimum));
      height: calc(var(--nav-button-size) + 2 * var(--spacing-minimum));
    }
  }
}