/* =========================================================================
   CATALOG MODAL & 3D FLIPBOOK — کاتالوگ‌خوان آنلاین درون‌صفحه‌ای
   ========================================================================= */

.catalog-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2vh, 24px) clamp(10px, 2vw, 24px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-out), visibility 0.4s ease;
  direction: rtl;
}

.catalog-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* پس‌زمینه بلورین و تاریک */
.catalog-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 13, 0.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}

/* محفظه اصلی کاتالوگ */
.catalog-modal__dialog {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 960px;
  height: min(92vh, 900px);
  background: linear-gradient(175deg, rgba(16, 28, 42, 0.95) 0%, rgba(6, 12, 20, 0.98) 100%);
  border: 1px solid rgba(240, 163, 46, 0.35);
  border-radius: var(--radius-lg, 16px);
  box-shadow:
    0 24px 64px -12px rgba(0, 0, 0, 0.9),
    0 0 32px rgba(240, 163, 46, 0.12),
    inset 0 1px 1px rgba(255, 235, 180, 0.2);
  overflow: hidden;
  transform: scale(0.94) translateY(20px);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}

.catalog-modal.is-open .catalog-modal__dialog {
  transform: scale(1) translateY(0);
}

/* ----------------------------------------------------------- نوار بالا */
.catalog-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(240, 163, 46, 0.18);
  background: rgba(4, 9, 16, 0.6);
  flex-shrink: 0;
  gap: 12px;
}

.catalog-modal__title-box {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.catalog-modal__badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(240, 163, 46, 0.15);
  border: 1px solid rgba(240, 163, 46, 0.35);
  color: var(--accent-300);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.catalog-modal__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-modal__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.catalog-modal__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid rgba(240, 163, 46, 0.25);
  background: rgba(255, 255, 255, 0.04);
  color: var(--fg-200);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s var(--ease-out);
}

.catalog-modal__btn:hover {
  background: rgba(240, 163, 46, 0.15);
  border-color: var(--accent-bright);
  color: #fff;
}

.catalog-modal__btn.is-downloading {
  opacity: 0.75;
  pointer-events: none;
  cursor: wait;
}

.catalog-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.25s ease;
}

.catalog-modal__close:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.5);
  color: #fca5a5;
  transform: rotate(90deg);
}

/* ---------------------------------------------------- صحنه نمایش کاتالوگ */
.catalog-modal__stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2vh, 24px);
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

/* قاب اصلی کاتالوگ */
.flipbook {
  position: relative;
  width: min(100%, 540px);
  height: 100%;
  max-height: 100%;
  aspect-ratio: 1275 / 1650;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 24px 36px rgba(0, 0, 0, 0.85));
}

/* ویوپورت فریم صفحات کاتالوگ با گوشه‌های نرم و افکت نور طلایی */
.flipbook__viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-md, 12px);
  background: #070c14;
  border: 1px solid rgba(240, 163, 46, 0.3);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 16px 40px -8px rgba(0, 0, 0, 0.8),
    0 0 28px rgba(240, 163, 46, 0.1);
}

/* کارت صفحه */
.flipbook__card,
.flipbook__page {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #080e18;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  transition:
    transform 0.38s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.38s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.flipbook__card img,
.flipbook__page img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  user-select: none;
  pointer-events: none;
}

/* کارت صفحه فعال جاری */
.flipbook__card.is-current,
.flipbook__page--top {
  z-index: 2;
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
}

/* =========================================================================
   انیمیشن‌های جابجایی صفحات راست‌چین (RTL Transitions):
   - رفتن به صفحه بعد (Next): ورود از سمت راست (+X) و خروج به چپ (-X)
   - رفتن به صفحه قبل (Prev): ورود از سمت چپ (-X) و خروج به راست (+X)
   ========================================================================= */

/* صفحه بعدی: ورود نرم از راست */
.flipbook__card.is-enter-next {
  transform: translate3d(45px, 0, 0) scale(0.98);
  opacity: 0;
  z-index: 3;
}

/* صفحه جاری: خروج نرم به سمت چپ هنگام رفتن به صفحه بعد */
.flipbook__card.is-exit-next {
  transform: translate3d(-45px, 0, 0) scale(0.98);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

/* صفحه قبلی: ورود نرم از چپ */
.flipbook__card.is-enter-prev {
  transform: translate3d(-45px, 0, 0) scale(0.98);
  opacity: 0;
  z-index: 3;
}

/* صفحه جاری: خروج نرم به سمت راست هنگام رفتن به صفحه قبل */
.flipbook__card.is-exit-prev {
  transform: translate3d(45px, 0, 0) scale(0.98);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

/* حالت فعال شدن کارت ورودی به سمت مرکز */
.flipbook__card.is-incoming.is-active {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
}

/* بهینه‌سازی برای کاربرانی که انیمیشن کمتر را ترجیح می‌دهند */
@media (prefers-reduced-motion: reduce) {
  .flipbook__card,
  .flipbook__page {
    transition: opacity 0.2s ease !important;
    transform: none !important;
  }
}

/* دکمه‌های ناوبری شناور در صحنه */
.catalog-modal__nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(240, 163, 46, 0.35);
  background: rgba(6, 13, 22, 0.85);
  color: var(--accent-300);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.25s var(--ease-out);
}

.catalog-modal__nav-btn:hover:not(:disabled) {
  background: rgba(240, 163, 46, 0.25);
  border-color: var(--accent-bright);
  color: #fff;
  transform: translateY(-50%) scale(1.1);
  box-shadow: 0 0 20px rgba(240, 163, 46, 0.4);
}

.catalog-modal__nav-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
}

.catalog-modal__nav-btn--next {
  left: 16px;
}

.catalog-modal__nav-btn--prev {
  right: 16px;
}

/* ----------------------------------------------------------- نوار پایین */
.catalog-modal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-top: 1px solid rgba(240, 163, 46, 0.15);
  background: rgba(4, 9, 16, 0.65);
  flex-shrink: 0;
  gap: 16px;
}

.catalog-modal__page-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-fa);
  font-size: 0.85rem;
  color: var(--fg-200);
  white-space: nowrap;
}

.catalog-modal__page-indicator b {
  font-family: var(--font-display);
  color: var(--accent-bright);
  font-size: 0.98rem;
}

/* اسکرابر و نشانگر صفحات */
.catalog-modal__scrubber {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
  max-width: 440px;
  margin: 0 auto;
}

.catalog-modal__dot {
  flex: 1;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.25s ease;
}

.catalog-modal__dot:hover {
  background: rgba(240, 163, 46, 0.4);
  height: 6px;
}

.catalog-modal__dot.is-active {
  background: var(--accent-500);
  box-shadow: 0 0 10px rgba(240, 163, 46, 0.7);
  height: 6px;
}

.catalog-modal__hint {
  font-size: 0.72rem;
  color: var(--fg-400);
  white-space: nowrap;
}

/* -------------------------------------------------------- واکنش‌گرایی */
@media (max-width: 768px) {
  .catalog-modal {
    padding: 0;
  }

  .catalog-modal__dialog {
    height: 100svh;
    max-height: 100svh;
    border-radius: 0;
    border: none;
  }

  .catalog-modal__header {
    padding: max(8px, env(safe-area-inset-top, 0px)) 12px 8px;
  }

  .catalog-modal__title-box .catalog-modal__badge {
    display: none;
  }

  .catalog-modal__title {
    font-size: 0.9rem;
  }

  .catalog-modal__nav-btn {
    width: 38px;
    height: 38px;
  }

  .catalog-modal__nav-btn--next {
    left: 8px;
  }

  .catalog-modal__nav-btn--prev {
    right: 8px;
  }

  .catalog-modal__hint {
    display: none;
  }

  .catalog-modal__footer {
    padding: 8px 12px max(10px, env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 480px) {
  .catalog-modal__btn span {
    display: none;
  }

  .catalog-modal__btn {
    padding: 6px 10px;
  }

  .catalog-modal__stage {
    padding: 6px;
  }

  .flipbook {
    width: 96%;
  }
}