/* ===================================================================
   PLANE-BANNER FULL-WIDTH ANIMATION WIDGET
   A biplane tows a banner across the full width of the screen,
   performing U-turns at each edge and looping continuously.
   =================================================================== */

/* ---- Container: full viewport width ---- */
#plane-widget {
  position: fixed;
  bottom: 60px;
  left: 0;
  width: 100vw;
  height: 180px;
  z-index: 9999;
  pointer-events: none;
  overflow: visible;
}

/* ---- Plane image ---- */
#plane-widget .pw-plane {
  position: absolute;
  width: 150px;
  height: auto;
  transform-origin: center center;
  will-change: transform;
  z-index: 3;
  filter: drop-shadow(2px 3px 6px rgba(0,0,0,0.35));
  mix-blend-mode: multiply;
  pointer-events: auto;
  cursor: pointer;
}

/* ---- Banner wrapper (image + text move together) ---- */
#plane-widget .pw-banner-unit {
  position: absolute;
  width: 280px;
  height: 200px;
  transform-origin: left center;
  will-change: transform;
  z-index: 2;
  pointer-events: auto;
  cursor: pointer;
}

/* ---- Banner image ---- */
#plane-widget .pw-banner-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: 3px;
  z-index: 1;
  mix-blend-mode: multiply;
}

/* CSS fallback when no banner.png is available */
#plane-widget .pw-banner-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(
    135deg,
    #f5c518 0%,
    #eab308 25%,
    #f5c518 50%,
    #eab308 75%,
    #f5c518 100%
  );
  background-size: 200% 200%;
  box-shadow:
    0 2px 8px rgba(0,0,0,0.22),
    inset 0 1px 0 rgba(255,255,255,0.35);
  z-index: 1;
  animation: pw-fabric-shimmer 3s ease-in-out infinite;
}

@keyframes pw-fabric-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* ---- Banner text ---- */
#plane-widget .pw-banner-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 2;
  font-size: clamp(14px, 2.5vw, 22px);
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  font-weight: 800;
  color: #0a1628;
  line-height: 1.25;
  letter-spacing: 0.03em;
  padding: 5px 10px;
  user-select: none;
  -webkit-user-select: none;
  will-change: transform;
}

/* ---- Tow-line ---- */
#plane-widget .pw-towline {
  position: absolute;
  height: 1.5px;
  background: rgba(60, 60, 60, 0.45);
  transform-origin: left center;
  z-index: 1;
  will-change: transform, width;
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  #plane-widget {
    display: none;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  #plane-widget {
    bottom: 40px;
    height: 140px;
  }
  #plane-widget .pw-plane {
    width: 110px;
  }
  #plane-widget .pw-banner-unit {
    width: 140px;
    height: 95px;
  }
  #plane-widget .pw-banner-text {
    font-size: clamp(8px, 1.4vw, 14px);
  }
}