/*
 * Video / image background remover.
 * Page shell, hero, sections, FAQ and footer come from nod.css, as do
 * .segmented, .primary-button, .ghost-button and .error-box.
 */

.bg-wrap { position: relative; z-index: 1; padding-bottom: 56px; }

.bg-tool {
  overflow: hidden;
  border: 1px solid var(--nod-border);
  border-radius: var(--nod-large-radius);
  background: var(--nod-surface);
  box-shadow: 0 16px 44px rgba(31, 25, 55, 0.14);
}

.bg-tool__head {
  padding: 18px 34px;
  border-bottom: 1px solid var(--nod-border);
  background: var(--nod-surface-quiet);
}

.bg-tool__head h2 { margin: 0; color: var(--nod-text-strong); font-size: 15px; font-weight: 660; }
.bg-tool__head p { max-width: 68ch; margin: 4px 0 0; color: var(--nod-text-secondary); font-size: 13px; }

.bg-tool__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
}

/* ------------------------------------------------------------- the stage */

/* Same reasoning as the safe-zone stage: fill the leftover room with the page
   surface instead of a black slab. */
.bg-stage {
  display: grid;
  place-items: center;
  min-width: 0;
  padding: 24px;
  background: var(--nod-surface-subtle);
}

.bg-stage > div { width: 100%; }

.bg-panes { display: grid; grid-template-columns: 1fr; gap: 14px; justify-items: center; }
.bg-panes.has-result { grid-template-columns: 1fr 1fr; }

.bg-pane { width: 100%; max-width: 300px; }

.bg-pane__label {
  margin: 0 0 6px;
  color: var(--nod-text-secondary);
  font-size: 11px;
  font-weight: 620;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
}

.bg-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 54dvh;
  overflow: hidden;
  border-radius: var(--nod-card-radius);
  /* Chequerboard so transparent output reads as transparent, not as white. */
  background-color: #17181f;
  background-image:
    linear-gradient(45deg, #23242e 25%, transparent 25%),
    linear-gradient(-45deg, #23242e 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #23242e 75%),
    linear-gradient(-45deg, transparent 75%, #23242e 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.bg-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }

.bg-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border: 1px dashed var(--nod-border-strong);
  border-radius: var(--nod-card-radius);
  background: var(--nod-surface-quiet);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.bg-placeholder.is-dragging { border-color: var(--nod-brand); background: var(--nod-brand-tint); }
[data-bg-state='ready'] .bg-placeholder,
[data-bg-state='done'] .bg-placeholder { display: none; }

.bg-meta {
  margin: 12px 0 0;
  color: var(--nod-text-secondary);
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  word-break: break-all;
}

/* ------------------------------------------------------------- the panel */

.bg-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 18px;
  padding: 24px 22px;
  border-inline-start: 1px solid var(--nod-border);
  background: var(--nod-surface-quiet);
}

.bg-control > label,
.bg-control > .bg-control__label {
  display: block;
  margin-bottom: 7px;
  color: var(--nod-text-strong);
  font-size: 13px;
  font-weight: 620;
}

.bg-control small {
  display: block;
  margin-top: 6px;
  color: var(--nod-text-secondary);
  font-size: 12px;
  line-height: 18px;
}

.segmented--bg { grid-template-columns: repeat(4, 1fr); }
.segmented--bg button[hidden] { display: none; }

.bg-colour-row { display: flex; align-items: center; gap: 10px; }
.bg-colour-row input[type='color'] {
  width: 46px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--nod-border-strong);
  border-radius: var(--nod-control-radius);
  background: none;
  cursor: pointer;
}

.bg-range { width: 100%; accent-color: var(--nod-brand); }
.bg-setting-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.bg-setting-head .setting-value { color: var(--nod-text-secondary); font-size: 12px; font-variant-numeric: tabular-nums; }

.bg-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 4px; }
.bg-actions .primary-button { flex: 1 1 auto; }
label.primary-button, label.secondary-button { cursor: pointer; }

/* ------------------------------------------------------------- progress */

.bg-progress { margin: 0; }
.bg-progress__track { height: 6px; overflow: hidden; border-radius: 999px; background: var(--nod-surface-subtle); }
.bg-progress__bar { width: 0; height: 100%; border-radius: 999px; background: var(--nod-brand); transition: width 0.2s ease; }
.bg-progress__text { margin: 8px 0 0; color: var(--nod-text-secondary); font-size: 12px; line-height: 18px; }

.bg-note {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--nod-border);
  border-radius: var(--nod-control-radius);
  background: var(--nod-surface);
  color: var(--nod-text-secondary);
  font-size: 12px;
  line-height: 19px;
}

/* -------------------------------------------------------------- compact */

@media (max-width: 900px) {
  .bg-tool__body { grid-template-columns: minmax(0, 1fr); }
  .bg-panel { border-inline-start: 0; border-block-start: 1px solid var(--nod-border); }
  .bg-stage { padding: 16px; }
  .bg-tool__head { padding: 16px 18px; }
  .bg-pane { max-width: 240px; }
}

@media (max-width: 520px) {
  .bg-panel { padding: 16px 14px; }
  .bg-panes.has-result { grid-template-columns: 1fr; }
  .bg-pane { max-width: 100%; }
  .segmented--bg { grid-template-columns: repeat(2, 1fr); }
}