/* Size & alignment */
.flip-wrap { width: 100%; max-width: var(--maxw, 600px); }
.flip-wrap.align-center { margin-inline: auto; }
.flip-wrap.align-left   { margin-right: auto; }
.flip-wrap.align-right  { margin-left: auto; }

/* Prevent browser dark mode color shifting */
.flip-wrap, .flip-card, .flip-prompt, .flip-prompt * {
  color-scheme: only light;
}

/* Card shell */
.flip-card {
  display: block;
  width: 100%;
  height: var(--hpx, auto);
  position: relative;
  perspective: 1000px;
  border-radius: var(--radius, 16px);
  -webkit-tap-highlight-color: rgba(0,0,0,0);
  cursor: pointer;

  /* ensure children never clip during 3D transforms */
  transform-style: preserve-3d;
  overflow: visible !important;
  isolation: isolate; /* prevents flicker/clipping when flipping */
}

@supports (aspect-ratio: 1 / 1) {
  .flip-card { aspect-ratio: var(--ratio, 16/9); }
}

.flip-card.is-shadow { box-shadow: 0 10px 30px rgba(0,0,0,.12); }

/* Inner flipper (rotates) */
.flip {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform var(--dur, 400ms) ease;
  will-change: transform;
}

/* Faces */
.face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: var(--radius, 16px);
  object-fit: var(--fit, cover);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  user-select: none;
  -webkit-user-drag: none;
  transform-origin: center center;
  will-change: transform;
}

/* Initial placement */
.flip-card[data-axis="horizontal"] .face--front { transform: rotateY(0deg); }
.flip-card[data-axis="horizontal"] .face--back  { transform: rotateY(180deg); }
.flip-card[data-axis="vertical"]   .face--front { transform: rotateX(0deg); }
.flip-card[data-axis="vertical"]   .face--back  { transform: rotateX(180deg); }

/* Hover flip — desktops only */
@media (hover: hover) and (pointer: fine) {
  .flip-card[data-axis="horizontal"]:hover .flip,
  .flip-card[data-axis="horizontal"]:focus-visible .flip {
    transform: rotateY(180deg);
  }
  .flip-card[data-axis="vertical"]:hover .flip,
  .flip-card[data-axis="vertical"]:focus-visible .flip {
    transform: rotateX(180deg);
  }
}

/* Toggled state (set by JS) */
.flip-card.is-flipped[data-axis="horizontal"] .flip { transform: rotateY(180deg); }
.flip-card.is-flipped[data-axis="vertical"] .flip   { transform: rotateX(180deg); }

/* Mobile padding */
@media (max-width: 768px) {
  .flip-wrap { padding-inline: 16px; }
}

/* ---------- Big Bright Yellow Prompt (smaller + lower + anti-clipping) ---------- */
.flip-prompt {
  position: absolute;
  top: 60%; /* slightly below vertical center */
  right: 12px;
  transform: translateY(-50%) rotate(-2deg);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  color: #111;
  background: #ffeb3b; /* bright original yellow */
  border: 2px solid #111;
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(255, 230, 0, 0.6), 0 0 6px rgba(0,0,0,0.1);
  z-index: 5;
  cursor: pointer;

  will-change: transform, opacity;
  backface-visibility: hidden;
  transform-style: flat;

  animation: flipPromptPulse 1.6s ease-in-out infinite;
  transition: opacity .25s ease, transform .25s ease;
}

.flip-prompt__chevron {
  width: 12px;
  height: 12px;
  display: inline-block;
  position: relative;
}
.flip-prompt__chevron::before {
  content: "";
  position: absolute;
  inset: 0;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  transform: rotate(-45deg) translateX(2px);
  border-radius: 1px;
}

/* Pulse animation */
@keyframes flipPromptPulse {
  0%   { transform: translateY(-50%) rotate(-2deg) scale(1); }
  50%  { transform: translateY(-50%) rotate(-2deg) scale(1.08); }
  100% { transform: translateY(-50%) rotate(-2deg) scale(1); }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .flip-prompt { animation: none; }
}

/* Hide prompt when flipped or hovered (slight delay to avoid flicker) */
.flip-card.is-flipped .flip-prompt {
  opacity: 0;
  transform: translateY(-50%) rotate(-2deg) scale(0.9);
  transition-delay: 0.1s;
}
@media (hover: hover) and (pointer: fine) {
  .flip-card:hover .flip-prompt,
  .flip-card:focus-visible .flip-prompt {
    opacity: 0;
    transform: translateY(-50%) rotate(-2deg) scale(0.9);
  }
}

/* Smaller on phones */
@media (max-width: 480px) {
  .flip-prompt {
    right: 8px;
    padding: 10px 14px;
    font-size: 14px;
  }
}

/* ---------- Safari & Dark Mode Safeguard ---------- */
@media (prefers-color-scheme: dark) {
  .flip-prompt {
    background: #ffeb3b !important;
    color: #111 !important;
  }
}