.collage-app {
  width: min(1500px, calc(100% - 32px));
  margin: 28px auto 60px;
}

.collage-header {
  margin-bottom: 22px;
}

.collage-header h1 {
  margin-bottom: 6px;
}

.collage-header p {
  margin: 0;
  opacity: .78;
}

.collage-toolbar {
  display: grid;
  grid-template-columns: repeat(4, minmax(220px, 1fr));
  gap: 14px;
  align-items: start;
}

.collage-panel {
  border: 1px solid rgba(127,127,127,.28);
  border-radius: 12px;
  padding: 16px;
  background: rgba(127,127,127,.06);
}

.collage-panel h2 {
  font-size: 1rem;
  margin: 0 0 14px;
}

.collage-panel label {
  display: block;
  font-size: .86rem;
  font-weight: 600;
  margin: 10px 0 5px;
}

.collage-panel input[type="number"],
.collage-panel input[type="text"],
.collage-panel input[type="color"],
.collage-panel select,
.collage-panel button {
  width: 100%;
  box-sizing: border-box;
}

.collage-panel input[type="number"],
.collage-panel input[type="text"],
.collage-panel select {
  min-height: 40px;
  border: 1px solid rgba(127,127,127,.4);
  border-radius: 8px;
  padding: 7px 9px;
  background: var(--entry, #fff);
  color: inherit;
}

.collage-panel input[type="color"] {
  min-height: 40px;
  border: 1px solid rgba(127,127,127,.4);
  border-radius: 8px;
  padding: 3px;
  background: transparent;
}

.collage-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.collage-file-button,
.collage-primary,
.collage-photo-actions button {
  cursor: pointer;
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 10px 13px;
  font-weight: 700;
}

.collage-file-button {
  display: flex !important;
  align-items: center;
  justify-content: center;
  margin-top: 0 !important;
  background: #2368d8;
  color: white;
}

.collage-primary {
  margin-top: 12px;
  background: #2368d8;
  color: white;
}

.collage-photo-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.collage-photo-actions button {
  background: rgba(127,127,127,.18);
  color: inherit;
}

.collage-muted,
.collage-hint,
.collage-export-info {
  font-size: .82rem;
  opacity: .72;
}

.collage-muted {
  margin-top: 10px;
}

.collage-hint {
  margin: 7px 0 0;
}

.collage-check {
  display: flex !important;
  align-items: center;
  gap: 8px;
  font-weight: 500 !important;
  cursor: pointer;
}

.collage-check input {
  width: auto;
}

.collage-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 5px;
  margin-top: 10px;
  max-height: 120px;
  overflow: auto;
}

.collage-thumb {
  aspect-ratio: 1;
  border-radius: 5px;
  overflow: hidden;
  border: 2px solid transparent;
  background: rgba(127,127,127,.15);
  cursor: grab;
  position: relative;
}

.collage-thumb:active {
  cursor: grabbing;
}

.collage-thumb.dragging {
  opacity: .4;
}

.collage-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.collage-thumb span {
  position: absolute;
  left: 3px;
  bottom: 3px;
  font-size: 10px;
  line-height: 1;
  border-radius: 3px;
  background: rgba(0,0,0,.7);
  color: #fff;
  padding: 2px 3px;
  pointer-events: none;
}

.collage-workspace {
  margin-top: 20px;
  min-height: 420px;
  border: 1px solid rgba(127,127,127,.25);
  border-radius: 14px;
  background:
    linear-gradient(45deg, rgba(127,127,127,.08) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(127,127,127,.08) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(127,127,127,.08) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(127,127,127,.08) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.collage-empty {
  text-align: center;
  display: grid;
  gap: 6px;
  opacity: .66;
}

.collage-preview-shell {
  max-width: 100%;
  max-height: 72vh;
  box-shadow: 0 12px 35px rgba(0,0,0,.22);
  line-height: 0;
}

#previewCanvas {
  display: block;
  max-width: 100%;
  max-height: 72vh;
  width: auto;
  height: auto;
  background: white;
}

.collage-export-info {
  min-height: 38px;
  margin-top: 10px;
  line-height: 1.4;
}

@media (max-width: 1150px) {
  .collage-toolbar {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }
}

@media (max-width: 650px) {
  .collage-app {
    width: min(100% - 18px, 1500px);
    margin-top: 16px;
  }

  .collage-toolbar {
    grid-template-columns: 1fr;
  }

  .collage-workspace {
    padding: 10px;
    min-height: 300px;
  }
}

/* v3 photo crop editor */
.collage-photo-editor {
  margin-top: 16px;
  border: 1px solid rgba(127,127,127,.28);
  border-radius: 12px;
  padding: 14px 16px;
  background: rgba(127,127,127,.06);
}

.collage-photo-editor-title {
  display: flex;
  gap: 10px 18px;
  align-items: baseline;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.collage-photo-editor-title span,
.collage-editor-hint {
  font-size: .84rem;
  opacity: .72;
}

.collage-zoom-controls {
  display: grid;
  grid-template-columns: 42px auto minmax(180px, 1fr) 62px 42px auto;
  gap: 8px;
  align-items: center;
}

.collage-zoom-controls label {
  font-size: .86rem;
  font-weight: 700;
}

.collage-zoom-controls button {
  min-height: 38px;
  border: 0;
  border-radius: 8px;
  padding: 7px 10px;
  cursor: pointer;
  font-weight: 700;
  background: rgba(127,127,127,.18);
  color: inherit;
}

.collage-zoom-controls input[type="range"] {
  width: 100%;
}

.collage-editor-hint {
  margin: 9px 0 0;
}

.collage-thumb.selected {
  border-color: #2368d8;
  box-shadow: 0 0 0 1px #2368d8;
}

#previewCanvas {
  cursor: default;
  touch-action: none;
}

#previewCanvas.photo-selected {
  cursor: grab;
}

#previewCanvas.photo-dragging {
  cursor: grabbing;
}

@media (max-width: 720px) {
  .collage-zoom-controls {
    grid-template-columns: 42px 1fr 58px 42px;
  }

  .collage-zoom-controls label {
    display: none;
  }

  .collage-zoom-controls #resetCropBtn {
    grid-column: 1 / -1;
  }
}


/* v4 editing and export controls */
.collage-photo-actions-3 {
  grid-template-columns: repeat(3, 1fr);
}

.collage-edit-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.collage-edit-actions button {
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  font-weight: 700;
  background: rgba(127,127,127,.18);
  color: inherit;
}

.collage-edit-actions .collage-danger {
  background: rgba(180, 50, 50, .16);
}

.collage-thumb.swap-source {
  border-color: #d58b00;
  box-shadow: 0 0 0 2px #d58b00;
}

@media (max-width: 720px) {
  .collage-photo-actions-3,
  .collage-edit-actions {
    grid-template-columns: 1fr;
  }
}


/* v5 optional caption */
.collage-caption-options {
  margin-top: 8px;
  padding-top: 4px;
  border-top: 1px solid rgba(127,127,127,.18);
}

.collage-caption-options[hidden] {
  display: none !important;
}


/* v8 save/open project */
.collage-project-section {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(127,127,127,.22);
}

.collage-project-section h3 {
  margin: 0 0 10px;
  font-size: .95rem;
}

.collage-project-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.collage-project-actions button,
.collage-project-open {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 10px 13px;
  cursor: pointer;
  font-weight: 700;
  box-sizing: border-box;
}

.collage-project-actions button {
  background: rgba(127,127,127,.18);
  color: inherit;
}

.collage-project-open {
  margin: 0 !important;
  background: rgba(127,127,127,.18);
  color: inherit;
}

.collage-project-info {
  margin-top: 8px;
  font-size: .8rem;
  line-height: 1.35;
  opacity: .72;
}

@media (max-width: 650px) {
  .collage-project-actions {
    grid-template-columns: 1fr;
  }
}

/* STICKSPHOTO RESPONSIVE POLISH START */

html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

.collage-app,
.collage-toolbar,
.collage-panel,
.collage-workspace {
    box-sizing: border-box;
}

.collage-panel {
    min-width: 0;
}

.collage-panel button,
.collage-panel select,
.collage-panel input[type="number"],
.collage-file-button,
.collage-primary {
    min-height: 44px;
}

@media (max-width: 900px) {
    .collage-app {
        width: min(100% - 20px, 1500px);
    }

    .collage-toolbar {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .collage-workspace {
        padding: 14px;
    }
}

@media (max-width: 650px) {
    .collage-app {
        width: min(100% - 12px, 1500px);
        margin-top: 12px;
    }

    .collage-toolbar {
        grid-template-columns: 1fr;
    }

    .collage-panel {
        padding: 14px;
    }

    .collage-two-col {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .collage-photo-actions {
        grid-template-columns: 1fr 1fr;
    }

    .collage-thumbs {
        grid-template-columns: repeat(4, 1fr);
        max-height: 160px;
    }

    .collage-workspace {
        min-height: 260px;
        padding: 8px;
    }

    #previewCanvas {
        max-height: 62vh;
    }
}

@media (max-width: 420px) {
    .collage-thumbs {
        grid-template-columns: repeat(3, 1fr);
    }

    .collage-photo-actions {
        grid-template-columns: 1fr;
    }
}

/* STICKSPHOTO RESPONSIVE POLISH END */