/* Shared mobile footer (Brief 12). Hidden on desktop. Not fixed. */

.site-footer {
  display: none;
}

@media (max-width: 899px) {
  .site-footer {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
    margin-right: 0;
    margin-bottom: 0;
    margin-left: 0;
    padding: 36px calc(20px + env(safe-area-inset-right, 0px))
      calc(18px + env(safe-area-inset-bottom, 0px))
      calc(20px + env(safe-area-inset-left, 0px));
    color: rgba(255, 255, 255, 0.75);
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 10px;
    font-weight: 400;
    line-height: 1.3;
  }

  .site-footer p {
    margin: 0;
  }

  /* Landing is a full-viewport poster. Keep that poster intact, then let
     the shared footer follow it in document flow so it is not overlayed. */
  html:has(> body > .stage--mobile),
  html:has(> body > .stage--mobile) body {
    overflow-x: hidden;
    overflow-y: auto;
  }

  .stage--mobile {
    position: relative;
    inset: auto;
    height: 100dvh;
    min-height: 100dvh;
  }
}

/* Brief 16B: desktop internal footer.
   Same in-flow / short-page pin as mobile. Not fixed, sticky, or absolute. */
@media (min-width: 900px) {
  body:has(.internal-header) {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
  }

  body:has(.internal-header) .site-footer {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
    margin-top: auto;
    margin-right: 0;
    margin-bottom: 0;
    margin-left: 0;
    flex-shrink: 0;
    padding: 36px 22px 22px;
    color: #ffffff;
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.3;
    position: static;
  }

  body:has(.internal-header) .site-footer p {
    margin: 0;
  }
}

/* Brief 16C: same desktop footer on the landing page.
   Stages stay viewport-fixed so the locked composition does not move.
   Footer stays in-flow (margin-top: auto) and stacks above the stage. */
@media (min-width: 900px) and (min-height: 560px) {
  body:has(> .stage--desktop) {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
  }

  body:has(> .stage--desktop) .site-footer {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
    margin-top: auto;
    margin-right: 0;
    margin-bottom: 0;
    margin-left: 0;
    flex-shrink: 0;
    padding: 36px 22px 22px;
    color: #ffffff;
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.3;
    position: relative;
    z-index: 2;
  }

  body:has(> .stage--desktop) .site-footer p {
    margin: 0;
  }
}