/* Reset / base: one screen, no scroll */
html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: black;
}

.viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.carousel-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.carousel-image.carousel-image--visible {
  opacity: 1;
}

.valentine-block {
  position: absolute;
  left: 50%;
  top: 16.67%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}

.valentine-block .valentine-buttons {
  pointer-events: auto;
}

.valentine-text {
  margin: 0 0 1rem;
  font-family: "Dancing Script", cursive;
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 600;
  color: #e91e8c;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7), 0 4px 12px rgba(0, 0, 0, 0.6), 0 0 32px rgba(0, 0, 0, 0.5);
  padding: 0 1rem;
}

.valentine-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-valentine {
  font-family: "Dancing Script", cursive;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 600;
  padding: 0.5rem 1.5rem;
  border: none;
  border-radius: 2rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-yes {
  background: #e91e8c;
  color: #fff;
  box-shadow: 0 4px 12px rgba(233, 30, 140, 0.4);
}

.btn-yes:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(233, 30, 140, 0.5);
}

.btn-no {
  background: rgba(255, 255, 255, 0.9);
  color: #333;
}

.btn-no:hover {
  transform: scale(1.02);
}

.btn-no.no-shake {
  animation: shake 0.4s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  background: rgba(255, 255, 255, 0.4);
  color: #333;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, opacity 0.2s;
  opacity: 0.6;
}

.arrow:hover {
  background: rgba(255, 255, 255, 0.7);
  opacity: 1;
}

.arrow:active {
  background: rgba(255, 255, 255, 0.9);
}

.arrow-left {
  left: 16px;
}

.arrow-right {
  right: 16px;
}