/*
 * Itqan UI — shared styles for modal, tooltip and lightbox.
 *
 * Tokens fall back to the theme's Tailwind variables (--color-tg-*) so the
 * primitives follow the site's design language. Logical properties only, so
 * the same file serves dir="rtl" and dir="ltr". Dark mode follows the theme's
 * `.dark` class on <html>.
 */

:root {
  --iu-accent: var(--color-tg-red, #e0464e);
  --iu-accent-strong: var(--color-tg-red-200, #d61b25);
  --iu-bg: #ffffff;
  --iu-bg-muted: var(--color-tg-gray, #f7f7fa);
  --iu-fg: var(--color-tg-black, #1f1f1f);
  --iu-fg-muted: var(--color-tg-gray-700, #808080);
  --iu-border: var(--color-tg-gray-200, #ededed);
  --iu-backdrop: rgba(10, 10, 12, 0.6);
  --iu-radius: 1.25rem;
  --iu-radius-sm: 0.75rem;
  --iu-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  --iu-font: "DINNEXT-REGULAR", var(--font-araby-regular, system-ui), sans-serif;
  --iu-font-bold: "DINNEXT-BOLD", var(--font-araby-bold, system-ui), sans-serif;
  --iu-z: 9000;
  --iu-ease: cubic-bezier(0.32, 0.72, 0, 1);
  --iu-duration: 320ms;
}

.dark {
  --iu-bg: var(--color-tg-gray-500-dark, #303030);
  --iu-bg-muted: var(--color-tg-gray-300, #2f2f2f);
  --iu-fg: #f5f5f5;
  --iu-fg-muted: var(--color-tg-gray-400, #999999);
  --iu-border: var(--color-tg-gray-100, #414141);
  --iu-backdrop: rgba(0, 0, 0, 0.72);
}

@media (prefers-reduced-motion: reduce) {
  :root { --iu-duration: 1ms; }
}

/* Body lock while a modal or lightbox is open. */
html.iu-lock,
html.iu-lock body {
  overflow: hidden !important;
  overscroll-behavior: contain;
}

/* ------------------------------------------------------------------ modal */

.iu-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--iu-z);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: var(--iu-backdrop);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity var(--iu-duration) var(--iu-ease);
  font-family: var(--iu-font);
  color: var(--iu-fg);
  -webkit-tap-highlight-color: transparent;
}
.iu-backdrop.is-open { opacity: 1; }

.iu-modal {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: var(--iu-modal-width, 30rem);
  max-height: calc(100dvh - 2rem);
  display: flex;
  flex-direction: column;
  background: var(--iu-bg);
  color: var(--iu-fg);
  border-radius: var(--iu-radius);
  box-shadow: var(--iu-shadow);
  overflow: hidden;
  outline: none;
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform var(--iu-duration) var(--iu-ease), opacity var(--iu-duration) var(--iu-ease);
}
.iu-backdrop.is-open .iu-modal {
  transform: none;
  opacity: 1;
}

.iu-modal__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.iu-modal__close {
  position: absolute;
  top: 0.75rem;
  inset-inline-end: 0.75rem;
  z-index: 2;
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease;
}
.iu-modal__close:hover,
.iu-modal__close:focus-visible { background: rgba(0, 0, 0, 0.7); transform: scale(1.05); }
.iu-modal__close:focus-visible { outline: 2px solid var(--iu-accent); outline-offset: 2px; }
.iu-modal__close svg { width: 1rem; height: 1rem; }

/* Bottom sheet variant: used on small screens (or forced with variant: 'sheet'). */
.iu-backdrop--sheet {
  align-items: flex-end;
  padding: 0;
}
.iu-backdrop--sheet .iu-modal {
  max-width: 40rem;
  max-height: calc(100dvh - 2.5rem);
  border-end-start-radius: 0;
  border-end-end-radius: 0;
  border-start-start-radius: calc(var(--iu-radius) + 0.25rem);
  border-start-end-radius: calc(var(--iu-radius) + 0.25rem);
  padding-bottom: env(safe-area-inset-bottom);
  transform: translateY(100%);
  opacity: 1;
  touch-action: pan-y;
}
.iu-backdrop--sheet.is-open .iu-modal { transform: none; }
.iu-backdrop--sheet .iu-modal.is-dragging { transition: none; }

.iu-modal__handle {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  padding: 0.5rem 0 0.25rem;
  cursor: grab;
  touch-action: none;
}
.iu-modal__handle::before {
  content: "";
  width: 2.75rem;
  height: 0.3rem;
  border-radius: 999px;
  background: var(--iu-border);
}
.iu-modal__handle--overlay {
  position: absolute;
  top: 0;
  inset-inline: 0;
  z-index: 2;
  padding-top: 0.5rem;
}
.iu-modal__handle--overlay::before { background: rgba(255, 255, 255, 0.85); }

/* --------------------------------------------------------------- tooltip */

.iu-tooltip {
  position: fixed;
  z-index: calc(var(--iu-z) + 50);
  max-width: min(18rem, calc(100vw - 2rem));
  padding: 0.45rem 0.7rem;
  border-radius: var(--iu-radius-sm);
  background: var(--iu-fg);
  color: var(--iu-bg);
  font-family: var(--iu-font);
  font-size: 0.85rem;
  line-height: 1.45;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 140ms ease, transform 140ms ease;
}
.iu-tooltip.is-visible { opacity: 1; transform: none; }
.iu-tooltip__arrow {
  position: absolute;
  width: 0.6rem;
  height: 0.6rem;
  background: inherit;
  transform: rotate(45deg);
}
.iu-tooltip[data-pos="top"] .iu-tooltip__arrow { bottom: -0.3rem; }
.iu-tooltip[data-pos="bottom"] .iu-tooltip__arrow { top: -0.3rem; }
.iu-tooltip[data-pos="start"] .iu-tooltip__arrow { inset-inline-end: -0.3rem; }
.iu-tooltip[data-pos="end"] .iu-tooltip__arrow { inset-inline-start: -0.3rem; }
.dark .iu-tooltip { background: #f5f5f5; color: #1f1f1f; }

/* -------------------------------------------------------------- lightbox */

.iu-lightbox {
  position: fixed;
  inset: 0;
  z-index: calc(var(--iu-z) + 20);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.92);
  opacity: 0;
  transition: opacity var(--iu-duration) var(--iu-ease);
  font-family: var(--iu-font);
  color: #fff;
  -webkit-tap-highlight-color: transparent;
}
.iu-lightbox.is-open { opacity: 1; }
.iu-lightbox__img {
  max-width: 100vw;
  max-height: 100dvh;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
  transform: scale(0.96);
  transition: transform var(--iu-duration) var(--iu-ease);
  touch-action: pan-y;
}
.iu-lightbox.is-open .iu-lightbox__img { transform: none; }
.iu-lightbox.is-dragging .iu-lightbox__img { transition: none; }
.iu-lightbox__caption {
  position: absolute;
  bottom: 0;
  inset-inline: 0;
  padding: 1rem 1.25rem calc(1rem + env(safe-area-inset-bottom));
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  font-size: 0.95rem;
  text-align: center;
}
.iu-lightbox__btn {
  position: absolute;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  transition: background 150ms ease;
}
.iu-lightbox__btn:hover,
.iu-lightbox__btn:focus-visible { background: rgba(255, 255, 255, 0.3); }
.iu-lightbox__btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.iu-lightbox__btn svg { width: 1.25rem; height: 1.25rem; }
.iu-lightbox__close { top: calc(0.75rem + env(safe-area-inset-top)); inset-inline-end: 0.75rem; }
.iu-lightbox__prev { inset-inline-start: 0.75rem; top: 50%; transform: translateY(-50%); }
.iu-lightbox__next { inset-inline-end: 0.75rem; top: 50%; transform: translateY(-50%); }
.iu-lightbox__prev svg,
.iu-lightbox__next svg { transition: transform 150ms ease; }
[dir="rtl"] .iu-lightbox__prev svg,
[dir="rtl"] .iu-lightbox__next svg { transform: scaleX(-1); }
.iu-lightbox__counter {
  position: absolute;
  top: calc(1.25rem + env(safe-area-inset-top));
  inset-inline-start: 1rem;
  font-size: 0.85rem;
  opacity: 0.8;
}
.iu-lightbox[data-single="true"] .iu-lightbox__prev,
.iu-lightbox[data-single="true"] .iu-lightbox__next,
.iu-lightbox[data-single="true"] .iu-lightbox__counter { display: none; }

/* Screen-reader only helper. */
.iu-sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}