/* Copyright 2012 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* Upload Screen Container */
#uploadScreenContainer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--body-bg-color);
  z-index: 10002;
  overflow-y: auto;
  padding: 24px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  color-scheme: light dark;
}

#uploadScreenContainer::-webkit-scrollbar {
  width: 8px;
}

#uploadScreenContainer::-webkit-scrollbar-track {
  background: var(--scrollbar-bg-color, rgba(0, 0, 0, 0.05));
}

#uploadScreenContainer::-webkit-scrollbar-thumb {
  background: var(--scrollbar-color, rgba(0, 0, 0, 0.2));
  border-radius: 4px;
}

/* Main Screen */
.pdf-upload-screen {
  width: 100%;
  max-width: 900px;
  margin: auto;
}

/* Header with Logo and Title */
.pdf-upload-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  padding-left: 0;
  position: relative;
}

.pdf-upload-settings-button {
  position: absolute;
  top: 0;
  right: 0;
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.pdf-upload-settings-button:hover {
  opacity: 1;
}

.pdf-upload-logo {
  width: 60px;
  height: 64px;
  object-fit: contain;
  flex-shrink: 0;
}

.pdf-upload-title-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pdf-upload-title {
  margin: 0;
  font-size: 28px;
  color: var(--main-color);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.pdf-upload-tagline {
  margin: 8px 0 0 0;
  font-size: 14px;
  color: var(--main-color);
  opacity: 0.7;
  font-weight: 400;
  letter-spacing: 0.3px;
}

/* Outer Container */
.pdf-upload-outer-container {
  background: var(--field-bg-color);
  border: 2px solid var(--field-border-color);
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 40px;
  box-shadow: 0 1px 3px color-mix(in srgb, var(--main-color) 10%, transparent);
}

.pdf-upload-outer-heading {
  margin: 0 0 24px 0;
  font-size: 20px;
  color: var(--main-color);
  font-weight: 600;
  text-align: center;
}

/* Upload Options Container */
.pdf-upload-options-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* Drop Zone */
.pdf-upload-zone {
  background: color-mix(in srgb, var(--field-bg-color) 95%, transparent);
  border: 1px solid var(--field-border-color);
  border-radius: 6px;
  padding: 40px 20px;
  margin-bottom: 30px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pdf-upload-zone:hover {
  border-color: color-mix(in srgb, var(--field-border-color) 140%, transparent);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--main-color) 15%, transparent);
  transform: translateY(-2px);
}

.pdf-upload-zone-active {
  border-color: color-mix(in srgb, var(--field-border-color) 160%, transparent);
  background: color-mix(in srgb, var(--field-bg-color) 95%, var(--toolbar-icon-bg-color) 5%);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--main-color) 20%, transparent);
  transform: scale(1.01);
}

/* Drop Zone Content */
.pdf-upload-zone-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.pdf-upload-zone-icon {
  font-size: 36px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--field-border-color) 50%, transparent);
  border-radius: 6px;
  color: color-mix(in srgb, var(--main-color) 70%, transparent);
}

.pdf-upload-heading {
  margin: 0;
  font-size: 20px;
  color: var(--main-color);
  font-weight: 600;
}

.pdf-upload-zone-heading {
  margin: 0;
  font-size: 16px;
  color: var(--main-color);
  font-weight: 500;
}

.pdf-upload-zone-description {
  margin: 0;
  font-size: 14px;
  color: color-mix(in srgb, var(--main-color) 70%, transparent);
  line-height: 1.4;
}

.pdf-upload-zone-subtext {
  margin: 0;
  font-size: 14px;
  color: color-mix(in srgb, var(--main-color) 70%, transparent);
}

/* History Section */
.pdf-upload-history {
  background: var(--field-bg-color);
  border-radius: 8px;
  border: 1px solid var(--field-border-color);
  padding: 24px;
  box-shadow: 0 1px 3px color-mix(in srgb, var(--main-color) 10%, transparent);
  display: flex;
  flex-direction: column;
  max-height: 400px;
  min-width: 0;
  overflow: hidden;
}

/* History Header */
.pdf-upload-history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-shrink: 0;
  min-width: 0;
  width: 100%;
}

.pdf-upload-history-title {
  margin: 0;
  font-size: 16px;
  color: var(--main-color);
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Search Bar */
.pdf-upload-history-search {
  position: relative;
  flex: 1;
  min-width: 0;
  max-width: 100%;
  margin-right: 5px;
}

.pdf-upload-history-search-input {
  width: 100%;
  max-width: 100%;
  padding: 8px 12px 8px 36px;
  background: var(--field-bg-color);
  border: 1px solid var(--field-border-color);
  border-radius: 6px;
  font-size: 14px;
  color: var(--main-color);
  font-family: inherit;
  transition: all 0.2s ease;
  outline: none;
  box-sizing: border-box;
}

.pdf-upload-history-search-input::placeholder {
  color: color-mix(in srgb, var(--main-color) 50%, transparent);
}

.pdf-upload-history-search-input:focus {
  border-color: color-mix(in srgb, var(--field-border-color) 160%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--field-border-color) 20%, transparent);
}

.pdf-upload-history-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: color-mix(in srgb, var(--main-color) 50%, transparent);
  pointer-events: none;
}

.pdf-upload-history-search-icon svg {
  display: block;
}

/* History List */
.pdf-upload-history-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  min-height: 0;
}

.pdf-upload-history-grid::-webkit-scrollbar {
  width: 6px;
}

.pdf-upload-history-grid::-webkit-scrollbar-track {
  background: transparent;
}

.pdf-upload-history-grid::-webkit-scrollbar-thumb {
  background: var(--scrollbar-color, rgba(0, 0, 0, 0.2));
  border-radius: 3px;
}

.pdf-upload-history-grid::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-color, rgba(0, 0, 0, 0.3));
}

/* No History Message */
.pdf-upload-no-history {
  text-align: center;
  padding: 40px 20px;
  color: color-mix(in srgb, var(--main-color) 50%, transparent);
  font-size: 14px;
  font-style: italic;
}

/* History Item - List Style */
.pdf-upload-history-item {
  background: transparent;
  border: 1px solid var(--field-border-color);
  border-radius: 6px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  position: relative;
}

.pdf-upload-history-item:hover {
  border-color: color-mix(in srgb, var(--field-border-color) 140%, transparent);
  background: color-mix(in srgb, var(--field-bg-color) 50%, var(--toolbar-icon-bg-color) 5%);
  transform: translateX(5px);
  margin-right: 5px;
}

.pdf-upload-history-item:hover .pdf-upload-history-item-edit {
  opacity: 1;
}

.pdf-upload-history-item-icon {
  font-size: 28px;
  width: 49px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--field-border-color) 50%, transparent);
  border-radius: 4px;
  color: color-mix(in srgb, var(--main-color) 70%, transparent);
  flex-shrink: 0;
  overflow: hidden;
}

.pdf-upload-history-item-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pdf-upload-history-item-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.pdf-upload-history-item-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--main-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pdf-upload-history-item-name-input {
  width: 100%;
  font-size: 14px;
  font-weight: 500;
  color: var(--main-color);
  background: var(--field-bg-color);
  border: 1px solid var(--field-border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: inherit;
  outline: none;
}

.pdf-upload-history-item-name-input:focus {
  border-color: color-mix(in srgb, var(--field-border-color) 160%, transparent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--field-border-color) 40%, transparent);
}

.pdf-upload-history-item-meta {
  font-size: 12px;
  color: color-mix(in srgb, var(--main-color) 60%, transparent);
  display: flex;
  gap: 12px;
}

/* Action Buttons Container */
.pdf-upload-history-item-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  flex-shrink: 0;
}

.pdf-upload-history-item:hover .pdf-upload-history-item-actions {
  opacity: 1;
}

.pdf-upload-history-item-edit,
.pdf-upload-history-item-delete {
  background: transparent;
  border: none;
  color: color-mix(in srgb, var(--main-color) 60%, transparent);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.pdf-upload-history-item-edit:hover,
.pdf-upload-history-item-delete:hover {
  background: color-mix(in srgb, var(--field-border-color) 50%, transparent);
  color: var(--main-color);
}

.pdf-upload-history-item-edit:active,
.pdf-upload-history-item-delete:active {
  transform: scale(0.95);
}

.icon-edit,
.icon-delete {
  display: block;
  width: 16px;
  height: 16px;
  background-color: rgba(12, 12, 13, 0.6);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  transition: background-color 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  .icon-edit,
  .icon-delete {
    background-color: rgba(249, 249, 250, 0.6);
  }
}

.icon-edit {
  mask-image: url(images/history-edit.svg);
}

.icon-delete {
  mask-image: url(images/history-delete.svg);
}

.pdf-upload-history-item-edit:hover .icon-edit,
.pdf-upload-history-item-delete:hover .icon-delete {
  background-color: rgb(12, 12, 13);
}

@media (prefers-color-scheme: dark) {
  .pdf-upload-history-item-edit:hover .icon-edit,
  .pdf-upload-history-item-delete:hover .icon-delete {
    background-color: rgb(249, 249, 250);
  }
}

/* Drag Handle */
.pdf-upload-history-item-drag {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  cursor: grab;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.pdf-upload-history-item-drag:hover {
  opacity: 0.8;
}

.pdf-upload-history-item-drag:active {
  cursor: grabbing;
}

.icon-drag {
  display: block;
  width: 12px;
  height: 20px;
  background-color: rgba(12, 12, 13, 0.4);
  mask-image: url(images/history-drag-handle.svg);
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  transition: background-color 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  .icon-drag {
    background-color: rgba(249, 249, 250, 0.4);
  }
}

.pdf-upload-history-item-drag:hover .icon-drag {
  background-color: rgba(12, 12, 13, 0.6);
}

@media (prefers-color-scheme: dark) {
  .pdf-upload-history-item-drag:hover .icon-drag {
    background-color: rgba(249, 249, 250, 0.6);
  }
}

/* Dragging State */
.pdf-upload-history-item-dragging {
  opacity: 0.4;
  transform: scale(0.95);
  transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Drop Indicators */
.pdf-upload-history-item-drop-before::before,
.pdf-upload-history-item-drop-after::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 3px;
  background: color-mix(in srgb, var(--main-color) 60%, transparent);
  border-radius: 2px;
  z-index: 999;
  animation: dropIndicatorPulse 1s ease-in-out infinite;
}

.pdf-upload-history-item-drop-before::before {
  top: -2px;
}

.pdf-upload-history-item-drop-after::after {
  bottom: -2px;
}

@keyframes dropIndicatorPulse {
  0%, 100% {
    opacity: 0.7;
    transform: scaleX(0.98);
  }
  50% {
    opacity: 1;
    transform: scaleX(1);
  }
}

/* Clear History Button */
.pdf-upload-clear-history-button {
  width: 100%;
  background: var(--dialog-button-bg-color);
  color: var(--field-color);
  border: 1px solid var(--field-border-color);
  padding: 10px 16px;
  font-size: 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.pdf-upload-clear-history-button:hover {
  background: var(--dialog-button-hover-bg-color);
  border-color: color-mix(in srgb, var(--field-border-color) 120%, transparent);
}

.pdf-upload-clear-history-button:active {
  transform: scale(0.98);
}

.pdf-upload-clear-history-button:focus {
  outline: 2px solid color-mix(in srgb, var(--field-border-color) 160%, transparent);
  outline-offset: 2px;
}

/* Confirmation Dialog */
.pdf-upload-confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10003;
  opacity: 0;
  transition: opacity 0.2s ease;
  padding: 24px;
}

.pdf-upload-confirm-overlay-visible {
  opacity: 1;
}

.pdf-upload-confirm-dialog {
  background: var(--field-bg-color);
  border: 1px solid var(--field-border-color);
  border-radius: 8px;
  padding: 24px;
  max-width: 400px;
  width: 100%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

.pdf-upload-confirm-overlay-visible .pdf-upload-confirm-dialog {
  transform: scale(1);
}

.pdf-upload-confirm-title {
  margin: 0 0 12px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--main-color);
}

.pdf-upload-confirm-message {
  margin: 0 0 24px 0;
  font-size: 14px;
  line-height: 1.5;
  color: color-mix(in srgb, var(--main-color) 85%, transparent);
}

.pdf-upload-confirm-buttons {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.pdf-upload-confirm-button {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--field-border-color);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.pdf-upload-confirm-button-cancel {
  background: var(--dialog-button-bg-color);
  color: var(--field-color);
}

.pdf-upload-confirm-button-cancel:hover {
  background: var(--dialog-button-hover-bg-color);
  border-color: color-mix(in srgb, var(--field-border-color) 120%, transparent);
}

.pdf-upload-confirm-button-confirm {
  background: color-mix(in srgb, var(--main-color) 15%, transparent);
  color: var(--main-color);
}

.pdf-upload-confirm-button-confirm:hover {
  background: color-mix(in srgb, var(--main-color) 25%, transparent);
  border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
}

.pdf-upload-confirm-button-danger {
  background: color-mix(in srgb, #ff4444 15%, transparent);
  color: #ff6666;
  border-color: color-mix(in srgb, #ff4444 30%, transparent);
}

.pdf-upload-confirm-button-danger:hover {
  background: color-mix(in srgb, #ff4444 25%, transparent);
  border-color: color-mix(in srgb, #ff4444 50%, transparent);
}

.pdf-upload-confirm-button:active {
  transform: scale(0.98);
}

.pdf-upload-confirm-button:focus {
  outline: 2px solid color-mix(in srgb, var(--field-border-color) 160%, transparent);
  outline-offset: 2px;
}

/* Add Tool Button */
.pdf-upload-add-tool-button {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 8px;
  background: var(--main-color);
  color: var(--field-bg-color);
  border: none;
  font-size: 32px;
  font-weight: 300;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
}

.pdf-upload-add-tool-button:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.pdf-upload-add-tool-button:active {
  transform: scale(0.95);
}

/* Responsive Design */
@media (max-width: 768px) {
  #uploadScreenContainer {
    padding: 16px;
  }

  .pdf-upload-header {
    margin-bottom: 32px;
  }

  .pdf-upload-logo {
    width: 50px;
    height: 54px;
  }

  .pdf-upload-title {
    font-size: 24px;
  }

  .pdf-upload-outer-container {
    padding: 24px;
    margin-bottom: 32px;
  }

  .pdf-upload-outer-heading {
    font-size: 18px;
    margin-bottom: 20px;
  }

  .pdf-upload-options-container {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .pdf-upload-zone {
    padding: 30px 16px;
    margin-bottom: 30px;
  }

  .pdf-upload-heading {
    font-size: 18px;
  }

  .pdf-upload-zone-icon {
    font-size: 40px;
    width: 40px;
    height: 40px;
  }


  .pdf-upload-history {
    padding: 16px;
    max-height: 350px;
  }

  .pdf-upload-history-item {
    padding: 10px 12px;
  }

  .pdf-upload-history-item-icon {
    font-size: 24px;
    width: 28px;
    height: 28px;
  }

  .pdf-upload-history-item-name {
    font-size: 13px;
  }

  .pdf-upload-history-item-meta {
    font-size: 11px;
  }
}

@media (max-width: 768px) {
  .pdf-upload-add-tool-button {
    width: 48px;
    height: 48px;
    font-size: 28px;
    bottom: 16px;
    right: 16px;
  }
}

@media (max-width: 480px) {
  #uploadScreenContainer {
    padding: 12px;
  }

  .pdf-upload-add-tool-button {
    width: 44px;
    height: 44px;
    font-size: 24px;
    bottom: 12px;
    right: 12px;
  }

  .pdf-upload-header {
    margin-bottom: 24px;
  }

  .pdf-upload-logo {
    width: 45px;
    height: 48px;
  }

  .pdf-upload-title {
    font-size: 20px;
  }

  .pdf-upload-outer-container {
    padding: 20px;
    margin-bottom: 24px;
  }

  .pdf-upload-outer-heading {
    font-size: 16px;
    margin-bottom: 16px;
  }

  .pdf-upload-options-container {
    gap: 12px;
  }

  .pdf-upload-zone {
    padding: 24px 12px;
  }

  .pdf-upload-zone-heading {
    font-size: 14px;
  }

  .pdf-upload-zone-icon {
    font-size: 32px;
    width: 32px;
    height: 32px;
  }

  .pdf-upload-zone-subtext {
    font-size: 13px;
  }


  .pdf-upload-history-item {
    padding: 10px;
  }

  .pdf-upload-history-item-icon {
    font-size: 20px;
    width: 24px;
    height: 24px;
  }

  .pdf-upload-history-item-name {
    font-size: 12px;
  }

  .pdf-upload-history-item-meta {
    font-size: 10px;
    gap: 8px;
  }
}
/* Settings Dialog */
.pdf-upload-settings-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10010;
}

.pdf-upload-settings-dialog {
  background: var(--field-bg-color);
  border: 1px solid var(--field-border-color);
  border-radius: 8px;
  padding: 24px;
  min-width: 400px;
  max-width: 90vw;
}

.pdf-upload-settings-dialog h2 {
  margin: 0 0 20px 0;
  font-size: 20px;
  color: var(--main-color);
}

.pdf-upload-settings-dialog label {
  display: block;
  margin: 16px 0 8px 0;
  font-size: 14px;
  color: var(--main-color);
  font-weight: 500;
}

.pdf-upload-settings-dialog input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--field-border-color);
  border-radius: 4px;
  font-size: 14px;
  background: var(--body-bg-color);
  color: var(--main-color);
  box-sizing: border-box;
}

.pdf-upload-settings-dialog input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.pdf-upload-settings-buttons {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

.pdf-upload-settings-save,
.pdf-upload-settings-cancel {
  padding: 8px 16px;
  border: 1px solid var(--field-border-color);
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  background: var(--field-bg-color);
  color: var(--main-color);
}

.pdf-upload-settings-save {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.pdf-upload-settings-save:hover {
  opacity: 0.9;
}

.pdf-upload-settings-cancel:hover {
  background: var(--field-bg-color);
  opacity: 0.8;
}