:root {
  --cv-bar: #1a2218;
  --cv-accent: #6bbf48;
  --cv-bg: #0f1410;
  --cv-text: #f4f7f1;
}

* {
  box-sizing: border-box;
}

html,
body.catalog-viewer-page {
  margin: 0;
  min-height: 100%;
  background: var(--cv-bg);
  color: var(--cv-text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  overscroll-behavior: none;
  touch-action: none;
}

.catalog-viewer-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 10px 14px;
  background: linear-gradient(180deg, #222a20 0%, var(--cv-bar) 100%);
  border-bottom: 2px solid var(--cv-accent);
}

.catalog-viewer-back {
  flex: 0 0 auto;
  color: #dce8d4;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.catalog-viewer-back:hover {
  color: #fff;
}

.catalog-viewer-heading {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.catalog-viewer-heading strong {
  font-size: 15px;
  letter-spacing: 0.02em;
}

.catalog-viewer-heading span {
  font-size: 12px;
  opacity: 0.75;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-viewer-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.catalog-zoom-btn,
.catalog-download-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: var(--cv-text);
  border-radius: 8px;
  height: 36px;
  min-width: 36px;
  padding: 0 10px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.catalog-download-btn {
  font-size: 13px;
  font-weight: 600;
  background: var(--cv-accent);
  border-color: transparent;
  color: #12200f;
}

.catalog-zoom-btn:hover,
.catalog-download-btn:hover {
  filter: brightness(1.08);
}

.catalog-viewer-stage {
  position: relative;
  height: calc(100dvh - 56px - 34px);
  min-height: 320px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at top, rgba(107, 191, 72, 0.08), transparent 55%),
    var(--cv-bg);
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.catalog-viewer-stage.is-dragging {
  cursor: grabbing;
}

.catalog-viewer-canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
  transform-origin: center center;
  will-change: transform;
  backface-visibility: hidden;
}

.catalog-viewer-canvas img,
.catalog-viewer-canvas canvas {
  display: block;
  max-width: none;
  width: auto;
  height: auto;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  background: #fff;
  pointer-events: none;
  -webkit-user-drag: none;
}

.catalog-fallback-img {
  max-width: min(920px, 92vw);
  max-height: calc(100dvh - 120px);
}

.catalog-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(244, 247, 241, 0.85);
  font-size: 14px;
  pointer-events: none;
  background: rgba(15, 20, 16, 0.35);
}

.is-hidden {
  display: none !important;
}

.catalog-viewer-hint {
  margin: 0;
  padding: 8px 12px 10px;
  text-align: center;
  font-size: 12px;
  color: rgba(244, 247, 241, 0.62);
}

@media (max-width: 720px) {
  .catalog-viewer-heading span {
    display: none;
  }

  .catalog-download-btn {
    padding: 0 8px;
    font-size: 12px;
  }

  .catalog-fallback-img {
    max-width: 96vw;
    max-height: calc(100dvh - 110px);
  }

  .catalog-viewer-hint {
    font-size: 11px;
  }
}

@media (max-width: 420px) {
  .catalog-zoom-btn#catalogZoomReset {
    display: none;
  }
}