/* ========================================
   PILE VIEW — Stack of books
   ======================================== */

.pile-view {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 50px;
}

.pile-header {
  text-align: center;
}

.pile-title {
  font-family: 'Bangers', sans-serif;
  font-size: clamp(48px, 10vw, 80px);
  letter-spacing: 6px;
}

.pile-sub {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-top: 10px;
}

/* ===== Scattered Books ===== */
.pile-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px 30px;
  width: 100%;
  max-width: 1100px;
  padding: 0 20px;
  perspective: 800px;
}

/* Paper fold texture — all pile cards */
.pile-book:not(.has-cover)::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://pub-43a141f7a8b84a30a90fcc01da2114ca.r2.dev/Paper%20Fold.jpeg') center / cover no-repeat;
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

/* Iridescent sheen on pile items */
.pile-book::after,
.pile-folder .folder-body::after,
.pile-film .film-body::after,
.pile-phone::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--mx, 50%) var(--my, 50%),
    rgba(255,255,255,0.25) 0%,
    rgba(255,255,255,0.08) 30%,
    transparent 60%
  );
  mix-blend-mode: overlay;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 10;
}
.pile-book:hover::after,
.pile-folder:hover .folder-body::after,
.pile-film:hover .film-body::after,
.pile-phone:hover::after {
  opacity: 1;
}

.pile-book {
  all: unset;
  box-sizing: border-box;
  width: 240px;
  height: 320px;
  border: 3px solid var(--border);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  cursor: pointer;
  position: relative;
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
  transform: translate(var(--ox), var(--oy)) rotate(var(--rot));
  box-shadow: 8px 8px 0 0 var(--border);
  transform-style: preserve-3d;
}

/* Size variants */
.pile-sm { width: 200px; height: 270px; }
.pile-sm .pile-book-title { font-size: 20px; }
.pile-sm .pile-book-icon { font-size: 36px; }

.pile-md { width: 240px; height: 320px; }

.pile-lg { width: 280px; height: 380px; }
.pile-lg .pile-book-title { font-size: 30px; }
.pile-lg .pile-book-icon { font-size: 56px; }

.pile-wide { width: 300px; height: 240px; }
.pile-wide .pile-book-icon { font-size: 40px; }

.pile-sq { width: 260px; height: 260px; }

/* Deal cards animation on first load */
@keyframes dealCard {
  0% {
    opacity: 0;
    transform: translate(0, 100vh) rotate(15deg);
  }
  100% {
    opacity: 1;
    transform: translate(var(--ox, 0), var(--oy, 0)) rotate(var(--rot, 0deg));
  }
}

.pile-stack > * {
  animation: dealCard 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
}

.pile-stack.no-anim > * {
  animation: none;
}

.pile-stack > *:nth-child(1) { animation-delay: 0.1s; }
.pile-stack > *:nth-child(2) { animation-delay: 0.25s; }
.pile-stack > *:nth-child(3) { animation-delay: 0.4s; }
.pile-stack > *:nth-child(4) { animation-delay: 0.55s; }
.pile-stack > *:nth-child(5) { animation-delay: 0.7s; }
.pile-stack > *:nth-child(6) { animation-delay: 0.85s; }

.pile-book:hover {
  box-shadow: 12px 12px 0 0 var(--border);
  z-index: 100;
}

/* Cards with cover image */
.pile-book.has-cover .pile-book-icon {
  display: none;
}

.pile-book.has-cover .pile-book-title,
.pile-book.has-cover .pile-book-type {
  opacity: 0;
  transition: opacity 0.3s;
}

.pile-book.has-cover:hover .pile-book-title,
.pile-book.has-cover:hover .pile-book-type {
  opacity: 1;
}

/* Hover overlay for cards with covers */
.pile-book.has-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background 0.3s;
  z-index: 1;
}

.pile-book.has-cover:hover::before {
  background: rgba(0,0,0,0.5);
}

.pile-book.has-cover .pile-book-title,
.pile-book.has-cover .pile-book-type {
  position: relative;
  z-index: 2;
  color: var(--bg);
}

.pile-book-icon {
  font-size: 48px;
  line-height: 1;
}

.pile-book-title {
  font-family: 'Bangers', sans-serif;
  font-size: 26px;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-align: center;
  padding: 0 16px;
}

.pile-book-type {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  border: none;
  padding: 4px 12px;
}

/* ===== Graphisme: 2x2 grid ===== */
#graphisme-view .pile-stack {
  display: grid !important;
  grid-template-columns: repeat(2, 1fr) !important;
  flex-wrap: unset !important;
  max-width: 600px !important;
  margin: 0 auto;
}

#graphisme-view .pile-stack > * {
  width: 240px !important;
  height: 300px !important;
}

/* ===== Book View (PDF) ===== */
.book-view {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  gap: 30px;
}

/* ===== Dark mode: keep cards light ===== */
[data-theme="dark"] .pile-book:not(.has-cover) {
  background: var(--card-keep-bg);
  border-color: var(--card-keep-border);
  box-shadow: 8px 8px 0 0 var(--card-keep-shadow);
  color: var(--card-keep-text);
}

[data-theme="dark"] .pile-book:not(.has-cover):hover {
  box-shadow: 12px 12px 0 0 var(--card-keep-shadow);
}

[data-theme="dark"] .pile-book:not(.has-cover) .pile-book-type {
  color: var(--card-keep-muted);
}

[data-theme="dark"] .pile-book.has-cover .pile-book-title,
[data-theme="dark"] .pile-book.has-cover .pile-book-type {
  color: #f0ece4;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
}

/* ===== Responsive ===== */
@media (max-width: 700px) {
  .pile-view {
    padding: 56px 16px 30px;
    gap: 16px;
  }
  .pile-title {
    font-size: clamp(32px, 8vw, 80px);
  }
  .pile-sub {
    font-size: 12px;
  }

  /* Pile stack : grille uniforme */
  .pile-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    max-width: 100%;
    padding: 0;
  }

  /* Tous les items : meme taille, pas de rotation */
  .pile-book,
  .pile-sm,
  .pile-md,
  .pile-lg,
  .pile-wide,
  .pile-sq,
  .pile-phone,
  .pile-folder,
  .pile-film {
    width: 100% !important;
    height: 160px !important;
    transform: none !important;
    box-shadow: 3px 3px 0 var(--border);
    border-width: 2px;
  }
  .pile-book:hover,
  .pile-phone:hover,
  .pile-folder:hover,
  .pile-film:hover {
    transform: none !important;
    box-shadow: 3px 3px 0 var(--border);
  }
  .pile-book-title { font-size: 16px; letter-spacing: 2px; }
  .pile-book-icon { font-size: 24px; }
  .pile-book-type { font-size: 9px; }

  /* Graphisme sub-grid */
  #graphisme-view .pile-stack {
    grid-template-columns: repeat(2, 1fr);
  }
  #graphisme-view .pile-stack > * {
    width: 100% !important;
    height: 180px !important;
  }

  /* Covers mobile : overlay sombre + titres visibles */
  .pile-book.has-cover {
    overflow: hidden;
  }
  .pile-book.has-cover::before {
    background: rgba(0,0,0,0.35);
  }
  .pile-book.has-cover .pile-book-title,
  .pile-book.has-cover .pile-book-type {
    opacity: 1;
  }
  .pile-book.has-cover .pile-book-title {
    font-size: 13px;
    padding: 0 6px;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
  }
  .pile-book.has-cover .pile-book-type {
    font-size: 8px;
    padding: 2px 6px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
  }

  /* Book view */
  .book-view {
    padding: 56px 16px 30px;
    gap: 14px;
  }
}

@media (max-width: 400px) {
  .pile-view {
    padding: 52px 10px 24px;
  }
  .pile-stack {
    gap: 10px;
  }
  .pile-book,
  .pile-sm,
  .pile-md,
  .pile-lg,
  .pile-wide,
  .pile-sq,
  .pile-phone,
  .pile-folder,
  .pile-film {
    height: 130px !important;
  }
  .pile-book-title { font-size: 14px; }
  .pile-book-icon { font-size: 20px; }
  .book-view {
    padding: 52px 10px 24px;
  }
}