/*
 * Drawing Viewer — Design Only
 *
 * هذا الملف يحتوي على التصميم البصري فقط، دون JavaScript أو منطق فتح/تحميل
 * الصور أو التكبير. اربط العناصر التالية بالـHTML الخاص بك:
 *
 * .drawing-viewer-overlay
 *   .drawing-viewer-header
 *     .drawing-viewer-title
 *       h3
 *       .drawing-viewer-badge
 *     .drawing-viewer-actions
 *       .drawing-viewer-zoom-group
 *         button
 *         .drawing-viewer-zoom-value
 *         button
 *       .drawing-viewer-close
 *   .drawing-viewer-hint
 *   .drawing-viewer-note
 *   .drawing-viewer-stage
 *     .drawing-viewer-image-wrap
 *       img
 *
 * لا توجد في هذا الملف أي أحداث أو دوال تشغيل.
 */

:root {
  --viewer-bg: #0a1412;
  --viewer-header-bg: rgba(255, 255, 255, 0.05);
  --viewer-border: rgba(255, 255, 255, 0.08);
  --viewer-text: #ffffff;
  --viewer-muted: #cbd5e1;
  --viewer-stage-bg: #faf8f3;
  --viewer-button-bg: #ffffff;
  --viewer-button-border: #34d399;
  --viewer-button-text: #047857;
  --viewer-note-bg: rgba(251, 191, 36, 0.12);
  --viewer-note-border: rgba(251, 191, 36, 0.2);
  --viewer-note-text: #fde68a;
  --viewer-font: "Tajawal", sans-serif;
}

/* Full-screen viewer overlay */
.drawing-viewer-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--viewer-bg);
  color: var(--viewer-text);
  font-family: var(--viewer-font);
  direction: rtl;
}

/* Header: desktop baseline */
.drawing-viewer-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 0 auto;
  min-height: 89px;
  box-sizing: border-box;
  padding: 12px 16px;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--viewer-header-bg);
  border-bottom: 1px solid var(--viewer-border);
}

/* Centered title; it remains centered independently of button widths */
.drawing-viewer-title {
  position: absolute;
  left: 50%;
  top: auto;
  bottom: 4px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(62%, 760px);
  min-width: 0;
  gap: 4px;
  text-align: center;
  pointer-events: none;
}

.drawing-viewer-title h3 {
  order: 2;
  max-width: 100%;
  margin: 0;
  color: var(--viewer-text);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  padding-bottom: 2px;
  text-align: center;
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
}

.drawing-viewer-badge {
  order: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  box-sizing: border-box;
  padding: 4px 14px;
  border: 2px solid #a7f3d0;
  border-radius: 10px;
  background: #047857;
  color: #ffffff;
  font-size: 11px;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

/* Header controls */
.drawing-viewer-actions,
.drawing-viewer-zoom-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.drawing-viewer-actions {
  position: static;
  margin-inline-start: auto;
}

.drawing-viewer-zoom-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  text-align: center;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

.drawing-viewer-close {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
}

.drawing-viewer-zoom-group button,
.drawing-viewer-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  box-sizing: border-box;
  padding: 4px;
  border: 1px solid var(--viewer-button-border);
  border-radius: 8px;
  background: var(--viewer-button-bg);
  color: var(--viewer-button-text);
  cursor: pointer;
  opacity: 1;
  filter: none;
  box-shadow: none;
  font: inherit;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
}

.drawing-viewer-zoom-group button:hover,
.drawing-viewer-close:hover {
  background: #ecfdf5;
}

.drawing-viewer-zoom-group button:active {
  transform: scale(0.96);
}

.drawing-viewer-close:active {
  transform: translateY(-50%) scale(0.96);
}

.drawing-viewer-zoom-group button:focus-visible,
.drawing-viewer-close:focus-visible {
  outline: 3px solid rgba(167, 243, 208, 0.9);
  outline-offset: 2px;
}

/* Instruction and optional note bars */
.drawing-viewer-hint {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  box-sizing: border-box;
  gap: 6px;
  min-height: 32px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--viewer-muted);
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
}

.drawing-viewer-note {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  box-sizing: border-box;
  padding: 8px 14px;
  border-bottom: 1px solid var(--viewer-note-border);
  background: var(--viewer-note-bg);
  color: var(--viewer-note-text);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}

/* Image stage */
.drawing-viewer-stage {
  position: relative;
  z-index: 0;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  box-sizing: border-box;
  background: var(--viewer-stage-bg);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.drawing-viewer-image-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.drawing-viewer-image-wrap img {
  display: block;
  max-width: 92%;
  max-height: 92%;
  object-fit: contain;
  transform-origin: center center;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  transition: transform 0.12s ease-out;
}

/* Error/empty state */
.drawing-viewer-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 40px;
  color: #6b7280;
  text-align: center;
}

.drawing-viewer-empty h4 {
  margin: 0 0 14px;
  color: #374151;
  font-size: 16px;
  font-weight: 700;
}

.drawing-viewer-empty p {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.5;
}

.drawing-viewer-empty code {
  padding: 2px 6px;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  background: #ffffff;
}

/* Dark-mode refinements */
html.dark .drawing-viewer-overlay {
  background: #0a1412;
}

html.dark .drawing-viewer-header {
  background: rgba(255, 255, 255, 0.05);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

html.dark .drawing-viewer-stage {
  background: #faf8f3;
}

html.dark .drawing-viewer-zoom-group button,
html.dark .drawing-viewer-close {
  border-color: #34d399;
  background: #ffffff;
  color: #047857;
}

/* Tablet */
@media (max-width: 768px) {
  .drawing-viewer-header {
    min-height: 85px;
    padding: 10px 12px;
    gap: 8px;
  }

  .drawing-viewer-title {
    width: min(58%, 520px);
  }

  .drawing-viewer-title h3 {
    font-size: 12px;
  }

  .drawing-viewer-zoom-group button,
  .drawing-viewer-close {
    width: 30px;
    height: 30px;
    padding: 4px;
  }

  .drawing-viewer-zoom-value {
    min-width: 44px;
    font-size: 12px;
  }

  .drawing-viewer-image-wrap img {
    max-width: 96%;
    max-height: 96%;
  }
}

/* Phone: compact header and non-overlapping controls */
@media (max-width: 480px) {
  .drawing-viewer-header {
    min-height: 81px;
    padding: 8px 10px;
    gap: 6px;
  }

  .drawing-viewer-title {
    position: absolute;
    left: 50%;
    top: auto;
    bottom: 4px;
    transform: translateX(-50%);
    order: initial;
    width: calc(100% - 80px);
    flex: none;
    min-width: 0;
    margin: 0;
  }

  .drawing-viewer-title h3 {
    display: -webkit-box;
    max-height: 2.5em;
    overflow: hidden;
    font-size: 10px;
    line-height: 1.35;
    padding-bottom: 2px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .drawing-viewer-badge {
    min-width: 46px;
    padding: 3px 10px;
    border-width: 1px;
    border-radius: 8px;
    font-size: 10px;
  }

  .drawing-viewer-close {
    right: 8px;
  }

  .drawing-viewer-actions {
    order: 2;
    flex: 0 0 auto;
    gap: 4px;
  }

  .drawing-viewer-zoom-group {
    gap: 4px;
  }

  .drawing-viewer-zoom-group button,
  .drawing-viewer-close {
    width: 20px;
    height: 20px;
    padding: 2px;
    border-radius: 5px;
  }

  .drawing-viewer-zoom-value {
    min-width: 34px;
    font-size: 10px;
  }

  .drawing-viewer-hint {
    min-height: 30px;
    padding: 5px 8px;
    font-size: 11px;
  }

  .drawing-viewer-note {
    padding: 6px 10px;
    font-size: 11px;
  }

  .drawing-viewer-image-wrap img {
    max-width: 98%;
    max-height: 98%;
  }
}

/* Very small phones: stack controls below the title to prevent overlap */
@media (max-width: 360px) {
  .drawing-viewer-header {
    align-items: stretch;
    flex-wrap: wrap;
    padding: 7px 8px;
  }

  .drawing-viewer-close {
    right: 6px;
  }

  .drawing-viewer-title {
    flex: 1 1 100%;
    order: 1;
    min-height: 30px;
  }

  .drawing-viewer-actions {
    justify-content: center;
    flex: 1 1 100%;
    order: 2;
  }

  .drawing-viewer-stage {
    min-height: 0;
  }
}

/* Optional utility when an actual image is being dragged/panned */
.drawing-viewer-image-wrap.is-panning img {
  transition: none;
}

/* Prevent page-level fixed layers from visually covering the viewer */
body:has(.drawing-viewer-overlay) [style*="z-index: 10"],
body:has(.drawing-viewer-overlay) [style*="z-index:10"] {
  z-index: 0 !important;
}