@charset "UTF-8";

.pdf-tool-page {
  max-width: 1200px;
}

.pdf-feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  justify-content: center;
}

.pdf-feature-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: #eef4ff;
  color: #1d4ed8;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}

.pdf-merge-split-card {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 28px;
  box-sizing: border-box;
}

.merge-split-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.summary-card {
  padding: 18px 18px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

.summary-card-label {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #f3f4f6;
  color: #6b7280;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 10px;
}

.summary-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
  color: #111827;
}

.summary-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #6b7280;
}

.merge-split-tab-wrap {
  padding: 6px;
  border: 1px solid #e9edf3;
  border-radius: 18px;
  background: #f8fafc;
}

.tab-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tab-btn {
  border: 1px solid #d1d5db;
  background: #ffffff;
  color: #374151;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.tab-btn.is-active {
  background: #111827;
  border-color: #111827;
  color: #ffffff;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.panel-box {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 28px;
  border: 1px solid #e9edf3;
  border-radius: 22px;
  background: #fbfcfe;
}

.panel-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.panel-title {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: #111827;
}

.panel-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #6b7280;
}

.upload-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.upload-dropzone {
  display: block;
  width: 100%;
  border: 2px dashed #d8dee8;
  border-radius: 22px;
  background: linear-gradient(180deg, #f8fbff 0%, #f3f6fb 100%);
  cursor: pointer;
  transition: all 0.2s ease;
}

.upload-dropzone:hover,
.upload-dropzone.dragover,
.upload-dropzone.is-dragover {
  border-color: #9fb7ff;
  background: linear-gradient(180deg, #f4f8ff 0%, #eef4ff 100%);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(59, 130, 246, 0.08);
}

.upload-dropzone-inner {
  min-height: 150px;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.upload-main-text {
  margin: 0;
  color: #1f2937;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.5;
}

.upload-file-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  margin-left: 6px;
  border: none;
  border-radius: 999px;
  background: #6d7df6;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(109, 125, 246, 0.22);
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.2s ease;
}

.upload-file-chip:hover {
  filter: brightness(1.03);
  transform: translateY(-1px);
}

.upload-sub-text {
  margin: 0;
  color: #6b7280;
  font-size: 14px;
  line-height: 1.7;
}

.notice-strip {
  display: flex;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid #e6ebf2;
  border-radius: 16px;
  background: #f8fafc;
  color: #5b6472;
  font-size: 14px;
  line-height: 1.75;
}

.notice-strip strong {
  color: #111827;
  white-space: nowrap;
}

.notice-strip code {
  background: #eef2f7;
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 12px;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.option-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.option-field-full {
  grid-column: 1 / -1;
}

.field-help {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #6b7280;
}

.note-box {
  padding: 14px 16px;
  border: 1px solid #dbeafe;
  border-radius: 16px;
  background: #f8fbff;
}

.note-box p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #475569;
}

.note-box p + p {
  margin-top: 6px;
}

.section-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: #111827;
}

.file-list {
  display: grid;
  gap: 12px;
}

.file-item {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid #e5eaf1;
  border-radius: 18px;
  background: #ffffff;
  cursor: grab;
  transition: all 0.2s ease;
}

.file-item:hover {
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.04);
}

.file-item.is-dragging {
  opacity: 0.55;
  transform: scale(0.99);
}

.file-item.is-over {
  border-color: #9fb7ff;
  box-shadow: 0 0 0 4px rgba(109, 125, 246, 0.08);
}

.drag-handle {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #f3f4f6;
  color: #4b5563;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  user-select: none;
}

.file-item-main {
  min-width: 0;
}

.file-item-name {
  font-size: 15px;
  font-weight: 700;
  color: #111827;
  word-break: break-all;
  margin-bottom: 6px;
}

.file-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: #6b7280;
}

.file-item-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mini-btn {
  border: 1px solid #d1d5db;
  background: #ffffff;
  color: #374151;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.mini-btn:hover {
  background: #f9fafb;
}

.file-summary {
  padding: 14px 16px;
  border: 1px solid #e6ebf2;
  border-radius: 16px;
  background: #f8fafc;
  color: #4b5563;
  font-size: 14px;
  line-height: 1.75;
}

.page-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-chip {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
  background: #ffffff;
}

.page-chip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
  color: #111827;
}

.page-chip span {
  font-size: 13px;
  color: #6b7280;
}

.progress-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.progress-bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
  transition: width 0.2s ease;
}

.progress-text {
  font-size: 14px;
  line-height: 1.6;
  color: #4b5563;
}

.merge-result-box,
.split-result-box {
  margin-top: 2px;
}

.result-card {
  border-radius: 18px;
  padding: 20px;
  border: 1px solid #e5e7eb;
  background: #ffffff;
}

.result-card.is-success {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.result-card.is-error {
  background: #fef2f2;
  border-color: #fecaca;
}

.result-card.is-info {
  background: #f8fafc;
  border-color: #e5e7eb;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 12px;
}

.result-card.is-success .result-badge {
  background: #dcfce7;
  color: #166534;
}

.result-card.is-error .result-badge {
  background: #fee2e2;
  color: #991b1b;
}

.result-card.is-info .result-badge {
  background: #e5e7eb;
  color: #374151;
}

.result-title {
  margin: 0 0 8px;
  font-size: 18px;
  color: #111827;
}

.result-desc {
  margin: 0;
  font-size: 14px;
  color: #374151;
  line-height: 1.7;
}

.result-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.result-meta-item {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(229, 231, 235, 0.95);
}

.result-meta-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: #6b7280;
}

.result-meta-item span {
  font-size: 16px;
  font-weight: 800;
  color: #111827;
}

.result-downloads {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.result-download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 16px;
  border-radius: 12px;
  background: #111827;
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}

.result-download-link:hover {
  background: #000000;
}

.empty-state-box {
  padding: 18px;
  border-radius: 16px;
  border: 1px dashed #d1d5db;
  background: #f9fafb;
  color: #6b7280;
  font-size: 14px;
  text-align: center;
}

@media (max-width: 960px) {
  .pdf-merge-split-card,
  .panel-box {
    padding: 22px;
  }

  .merge-split-summary,
  .option-grid,
  .page-preview-grid,
  .result-meta-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .pdf-merge-split-card {
    padding: 18px;
    gap: 18px;
  }

  .panel-box {
    padding: 18px;
    border-radius: 18px;
  }

  .merge-split-tab-wrap {
    padding: 5px;
    border-radius: 16px;
  }

  .tab-btn {
    flex: 1 1 calc(50% - 5px);
    text-align: center;
  }

  .upload-dropzone {
    border-style: solid;
    border-width: 1px;
    border-radius: 20px;
  }

  .upload-dropzone-inner {
    min-height: 124px;
    padding: 22px 16px;
  }

  .upload-main-text {
    font-size: 18px;
  }

  .upload-sub-text {
    font-size: 13px;
  }

  .notice-strip {
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
  }

  .file-item {
    grid-template-columns: 1fr;
    cursor: default;
    padding: 14px;
  }

  .drag-handle {
    width: 100%;
    height: 40px;
  }

  .file-item-actions {
    justify-content: flex-start;
  }

  .result-meta-item span {
    font-size: 15px;
  }
}

.merge-sticky-summary {
  position: sticky;
  top: 14px;
  z-index: 15;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 14px;
  border: 1px solid #dbe2ef;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}

.merge-sticky-item {
  padding: 14px 16px;
  border: 1px solid #e5eaf1;
  border-radius: 14px;
  background: #f8fafc;
}

.merge-sticky-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #6b7280;
}

.merge-sticky-item span {
  font-size: 18px;
  font-weight: 800;
  color: #111827;
}

.range-validation-message {
  margin: 6px 0 0;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.65;
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  color: #475569;
}

.range-validation-message.is-valid {
  background: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}

.range-validation-message.is-error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.range-validation-message.is-info {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

@media (max-width: 960px) {
  .merge-sticky-summary {
    grid-template-columns: 1fr;
    top: 10px;
  }
}