/* GearUp4U first-visit acknowledgement. DIM flight-deck overlay. */

.ack-gate {
  --ack-gold: #d4b06a;
  --ack-ink: #f3efe4;
  --ack-mute: #c8bfae;
  --ack-panel: rgba(18, 22, 28, 0.82);
  --ack-line: rgba(212, 176, 106, 0.55);
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  overflow-x: hidden;
  overflow-y: auto;
  touch-action: pan-y;
  padding: 0 1rem max(1rem, env(safe-area-inset-bottom));
  color: var(--ack-ink);
  background: #12161c;
}

/* Prefer the card just under the nose wheel; shrink this gap when the slider would fall off-screen. */
.ack-gate::before {
  content: "";
  flex: 0 1 60dvh;
  min-height: max(0.75rem, env(safe-area-inset-top));
  width: 0;
  pointer-events: none;
}

/* Landscape source; crop to the site viewport and keep the aircraft centered. */
.ack-photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  pointer-events: none;
  user-select: none;
}

.ack-gate::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(8, 10, 14, 0.22),
    rgba(8, 10, 14, 0.34)
  );
}

.ack-gate[hidden] {
  display: none !important;
}

html.ack-locked,
html.ack-locked body {
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
}

.ack-panel {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  width: min(34rem, 100%);
  margin-bottom: max(1rem, env(safe-area-inset-bottom));
  padding: 1.25rem 1.15rem 1.1rem;
  border: 1px solid var(--ack-line);
  border-radius: 12px;
  background: var(--ack-panel);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
}

.ack-eyebrow {
  margin: 0 0 0.35rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ack-gold);
}

.ack-gate h2 {
  margin: 0 0 0.7rem;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.ack-body,
.ack-hint {
  margin: 0;
  line-height: 1.4;
}

.ack-body {
  margin-bottom: 1rem;
  font-size: 0.98rem;
  color: var(--ack-ink);
  white-space: pre-line;
}

.ack-hint {
  margin-bottom: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ack-mute);
}

.ack-track {
  position: relative;
  height: 3.15rem;
  margin: 0 0 0.85rem;
  border: 1px solid var(--ack-line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.ack-bay {
  position: absolute;
  inset: 4px 4px 4px auto;
  width: 46%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(243, 239, 228, 0.38);
  border: 1px dashed rgba(212, 176, 106, 0.35);
  border-radius: 6px;
  pointer-events: none;
}

.ack-strip {
  position: absolute;
  top: 4px;
  left: 4px;
  z-index: 1;
  width: 42%;
  height: calc(100% - 8px);
  margin: 0;
  padding: 0 0.4rem;
  border: 0;
  border-radius: 6px;
  background: var(--ack-gold);
  color: #1a140c;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.ack-strip:focus-visible {
  outline: 2px solid #fff4d4;
  outline-offset: 2px;
}

.ack-strip:active {
  cursor: grabbing;
}

.ack-gate.ack-seated .ack-bay {
  color: rgba(243, 239, 228, 0.12);
}

.ack-fallback {
  display: none;
  width: 100%;
  min-height: var(--touch);
  margin: 0 0 0.85rem;
  border: 1px solid var(--ack-gold);
  border-radius: 8px;
  background: var(--ack-gold);
  color: #1a140c;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.ack-gate.ack-reduced .ack-track,
.ack-gate.ack-reduced .ack-hint {
  display: none;
}

.ack-gate.ack-reduced .ack-fallback {
  display: block;
}

.ack-edumark {
  margin: 0 0 0.65rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.ack-edumark-compact {
  margin: 0.15rem 0 0;
  font-size: 0.62rem;
}