/* ============================================================
   GIF Maker — page layout & component styles
   ============================================================ */

.gfm-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

/* Dropzone */
.gfm-dropzone {
  width: 100%;
  border: 2px dashed var(--border-color);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  padding: 2.5rem 1.5rem;
  transition: border-color var(--transition), background var(--transition);
  margin-bottom: 1.5rem;
}
.gfm-dropzone:hover,
.gfm-dropzone:focus-visible,
.gfm-dropzone.is-dragover {
  border-color: var(--accent);
  background: var(--accent-light);
  outline: none;
}
.gfm-dropzone-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  line-height: 1;
}
.gfm-dropzone-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.4rem;
}
.gfm-dropzone-hint {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 1.25rem;
}
.gfm-browse-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.gfm-browse-btn:hover { opacity: 0.88; }

/* Error */
.gfm-error {
  color: var(--color-danger);
  background: rgba(220, 53, 69, 0.08);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* Editor section */
.gfm-editor {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.gfm-editor[hidden] { display: none; }

/* Thumbnails block */
.gfm-thumbs-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}
.gfm-thumbs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.35rem;
}
.gfm-thumbs-heading {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}
.gfm-thumbs-header-actions {
  display: flex;
  gap: 0.5rem;
}
.gfm-reorder-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
}

.gfm-thumbs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 0.6rem;
}
.gfm-thumb {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  aspect-ratio: 1 / 1;
  cursor: grab;
  background: var(--bg-input);
}
.gfm-thumb.is-dragging {
  opacity: 0.4;
}
.gfm-thumb.is-drop-target {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.gfm-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gfm-thumb-index {
  position: absolute;
  top: 4px;
  left: 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.2rem 0.4rem;
  border-radius: 999px;
}
.gfm-thumb-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 0.85rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gfm-thumb-remove:hover { background: var(--color-danger); }

.gfm-large-warning {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin: 0.75rem 0 0;
  padding: 0.5rem 0.75rem;
  background: rgba(220, 53, 69, 0.08);
  border-radius: 6px;
}

/* Settings block */
.gfm-settings-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}
.gfm-settings-heading {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--text-primary);
}

.gfm-settings-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gfm-setting-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.gfm-setting-row > label {
  min-width: 160px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  flex-shrink: 0;
}

.gfm-range-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 180px;
}
.gfm-range-wrap input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}
.gfm-range-val {
  font-size: 0.9rem;
  font-weight: 600;
  min-width: 3.2rem;
  text-align: right;
  color: var(--text-primary);
}

.gfm-quality-wrap {
  justify-content: flex-start;
}
.gfm-quality-low,
.gfm-quality-high {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.gfm-width-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}
.gfm-number-input {
  width: 90px;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text-primary);
}
.gfm-presets {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}
.gfm-preset {
  padding: 0.2rem 0.55rem;
  font-size: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  transition: border-color 0.15s, color 0.15s;
}
.gfm-preset:hover,
.gfm-preset.is-active {
  border-color: var(--accent);
  color: var(--accent);
}
.gfm-size-preview {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Advanced details */
.gfm-advanced {
  margin-top: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
}
.gfm-advanced summary {
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.gfm-advanced summary::before {
  content: '▶';
  font-size: 0.7rem;
  transition: transform 0.2s;
}
.gfm-advanced[open] summary::before {
  transform: rotate(90deg);
}
.gfm-advanced-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.gfm-select {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text-primary);
}
.gfm-checkbox-row {
  align-items: center;
}
.gfm-checkbox {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Estimate block */
.gfm-estimate-block {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

/* Convert row */
.gfm-convert-row {
  display: flex;
  justify-content: center;
}

/* Buttons */
.gfm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity 0.15s, background 0.15s;
}
.gfm-btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.gfm-btn--primary:hover { opacity: 0.88; }
.gfm-btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.gfm-btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.gfm-btn--ghost:hover {
  background: var(--bg-hover);
}
.gfm-btn--small {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}
.gfm-btn--large {
  padding: 0.75rem 2.25rem;
  font-size: 1.05rem;
  min-width: 180px;
}

/* Progress section */
.gfm-progress-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem 0;
}
.gfm-progress-section[hidden] { display: none; }
.gfm-progress-bar-wrap {
  width: 100%;
  background: var(--border-color);
  border-radius: 8px;
  height: 10px;
  overflow: hidden;
}
.gfm-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 8px;
  width: 0%;
  transition: width 0.2s;
}
.gfm-progress-status {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Result section */
.gfm-result-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 1rem 0;
}
.gfm-result-section[hidden] { display: none; }
.gfm-result-preview-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  background: repeating-conic-gradient(#e0e0e0 0% 25%, #fff 0% 50%) 0 0 / 20px 20px;
  border-radius: 12px;
  overflow: hidden;
}
.gfm-result-img {
  max-width: 100%;
  max-height: 480px;
  display: block;
}
.gfm-output-size {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}
.gfm-result-btn-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* FAQ */
.gfm-faq-section {
  margin-top: 2.5rem;
}
.gfm-faq-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}
.gfm-faq-section details {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 0.5rem;
  overflow: hidden;
}
.gfm-faq-section details summary {
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.gfm-faq-section details summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: transform 0.2s;
}
.gfm-faq-section details[open] summary::after {
  transform: rotate(45deg);
}
.gfm-faq-section details p {
  padding: 0 1.1rem 1rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 540px) {
  .gfm-setting-row > label {
    min-width: unset;
    width: 100%;
  }
  .gfm-range-wrap {
    min-width: unset;
  }
  .gfm-thumbs-header {
    flex-direction: column;
    align-items: flex-start;
  }
}