/* Mail tracking layout */
.mail-track-header-wrap {
  margin-bottom: 24px;
}

.mail-track-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
  align-items: stretch;
}

.mail-track-card {
  border-radius: 12px;
  overflow: hidden;
}

.mail-track-card--shadow {
  border: none;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.mail-track-card-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.mail-track-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.mail-track-card-body {
  padding: 20px;
}

.mail-track-card-body--result {
  padding: 24px;
}

/* Upload */
.mail-upload-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: var(--bg-secondary);
}

.mail-upload-zone:hover {
  border-color: #f0b90b;
  background: #fffbeb;
}

.mail-track-upload-title {
  margin: 0 0 8px 0;
  font-size: 16px;
  color: var(--text-primary);
}

.mail-track-upload-subtitle {
  margin: 0;
  font-size: 13px;
  color: var(--text-tertiary);
}

.mail-track-selected-file {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  background: linear-gradient(135deg, rgba(14, 203, 129, 0.1), rgba(14, 203, 129, 0.02));
  border: 1px solid #0ecb81;
  border-radius: 8px;
}

.mail-track-selected-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mail-track-selected-file-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mail-track-filename {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.mail-track-clear-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
}

.mail-track-recognize-btn {
  width: 100%;
  margin-top: 20px;
  padding: 14px;
  font-size: 16px;
  border-radius: 8px;
}

/* Preview */
.mail-track-image-preview {
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.mail-track-preview-placeholder {
  text-align: center;
  color: var(--text-tertiary);
}

.mail-track-preview-placeholder-text {
  margin: 0;
  font-size: 14px;
}

.mail-track-preview-img {
  display: none;
  max-width: 100%;
  max-height: 350px;
  border-radius: 8px;
  cursor: zoom-in;
}

.mail-track-preview-zoom-hint {
  display: none;
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
}

/* Lightbox */
.mail-track-lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 10001;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.mail-track-lightbox-img {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
  border-radius: 4px;
}

.mail-track-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
}

/* Progress */
.mail-track-progress {
  display: none;
  margin-bottom: 24px;
}

.mail-track-progress-card {
  border: 2px solid #3dcfff;
  background: linear-gradient(135deg, rgba(61, 207, 255, 0.1), rgba(61, 207, 255, 0.02));
  border-radius: 12px;
  overflow: hidden;
}

.mail-track-progress-body {
  padding: 30px;
  text-align: center;
}

.mail-track-progress-spinner {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border: 4px solid rgba(61, 207, 255, 0.3);
  border-top-color: #3dcfff;
  border-radius: 50%;
  animation: mail-track-spin 1s linear infinite;
}

.mail-track-progress-title {
  margin: 0 0 8px 0;
  color: #3dcfff;
}

.mail-track-progress-text {
  margin: 0;
  color: var(--text-secondary);
}

@keyframes mail-track-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Result */
.mail-track-result {
  display: none;
}

.mail-track-recognition-box {
  background: linear-gradient(135deg, rgba(240, 185, 11, 0.1), rgba(240, 185, 11, 0.02));
  border: 1px solid rgba(240, 185, 11, 0.3);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.mail-track-recognition-head {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.mail-track-recognition-label {
  font-size: 12px;
  color: var(--text-tertiary);
}

.mail-track-recognition-tip {
  font-size: 13px;
  color: var(--text-secondary);
}

.mail-track-input-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.mail-track-tracking-input {
  flex: 1;
  font-size: 20px;
  font-family: "Courier New", monospace;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 12px 16px;
}

.mail-track-btn-md {
  padding: 12px 20px;
}

.mail-track-btn-query {
  padding: 12px 20px;
}

.mail-track-quota {
  margin-top: 8px;
  text-align: right;
  font-size: 12px;
  color: var(--text-tertiary);
}

.mail-track-quota-remaining {
  color: #0ecb81;
  font-weight: 600;
}

.mail-track-quota-remaining--safe {
  color: #0ecb81;
}

.mail-track-quota-remaining--warn {
  color: #f0b90b;
}

.mail-track-quota-remaining--danger {
  color: #f6465d;
}

.mail-track-quota-countdown {
  margin-left: 6px;
  color: #b58a00;
}

.mail-track-quota-countdown--active {
  color: #a97800;
}

.mail-track-linked-cases {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 14px 12px;
  margin-bottom: 20px;
}

.mail-track-linked-cases-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding: 0 4px;
}

.mail-track-linked-cases-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mail-track-linked-cases-title {
  font-weight: 600;
  color: var(--text-primary);
}

.mail-track-linked-cases-count {
  background: rgba(240, 185, 11, 0.14);
  color: #8a6a00;
  border: 1px solid rgba(240, 185, 11, 0.28);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.mail-track-linked-cases-count--active {
  background: rgba(14, 203, 129, 0.14);
  color: #067a4f;
  border-color: rgba(14, 203, 129, 0.35);
}

.mail-track-linked-cases-count--idle {
  background: rgba(240, 185, 11, 0.14);
  color: #8a6a00;
  border-color: rgba(240, 185, 11, 0.28);
}

.mail-track-btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.mail-track-linked-cases-list {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
}

.mail-track-linked-cases-table-wrap {
  overflow-x: auto;
}

.mail-track-linked-cases-table {
  margin: 0;
  width: 100%;
  min-width: 760px;
  table-layout: auto;
}

.mail-track-linked-cases-table thead th {
  background: rgba(240, 185, 11, 0.1);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 12px;
  padding: 10px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.mail-track-linked-cases-table tbody td {
  padding: 10px 10px;
  font-size: 13px;
  color: var(--text-primary);
  border-top: 1px solid var(--border);
  vertical-align: middle;
}

.mail-track-linked-cases-table tbody tr:first-child td {
  border-top: none;
}

.mail-track-linked-case-row:hover {
  background: rgba(240, 185, 11, 0.06);
}

.mail-track-col-check {
  width: 44px;
  min-width: 44px;
  text-align: center;
}

.mail-track-cell-case-num {
  min-width: 150px;
  font-weight: 600;
}

.mail-track-cell-subject {
  min-width: 220px;
}

.mail-track-cell-type {
  min-width: 100px;
  color: var(--text-secondary);
}

.mail-track-cell-date {
  min-width: 116px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.mail-track-cell-source {
  min-width: 96px;
}

.mail-track-text-ellipsis {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-track-source-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.25);
  font-size: 12px;
  line-height: 1.4;
}

.mail-track-linked-cases .row-checkbox,
.mail-track-linked-cases .select-all-checkbox {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid #d2a106;
  border-radius: 4px;
  background: var(--bg-card);
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  margin: 0;
  vertical-align: middle;
}

.mail-track-linked-cases .row-checkbox:hover,
.mail-track-linked-cases .select-all-checkbox:hover {
  border-color: #f0b90b;
  box-shadow: 0 0 0 2px rgba(240, 185, 11, 0.18);
}

.mail-track-linked-cases .row-checkbox:checked,
.mail-track-linked-cases .select-all-checkbox:checked {
  background: #f0b90b;
  border-color: #f0b90b;
  box-shadow: 0 0 0 2px rgba(240, 185, 11, 0.24);
}

.mail-track-linked-cases .row-checkbox:checked::after,
.mail-track-linked-cases .select-all-checkbox:checked::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.mail-track-linked-cases-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 140px;
  padding: 20px 16px;
  color: var(--text-tertiary);
}

.mail-track-linked-cases-empty-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  opacity: 0.85;
}

.mail-track-linked-cases-empty-text {
  margin: 0;
  font-size: 14px;
}

@media (max-width: 900px) {
  .mail-track-linked-cases-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .mail-track-linked-cases-table thead th,
  .mail-track-linked-cases-table tbody td {
    padding: 8px 8px;
    font-size: 12px;
  }

  .mail-track-cell-case-num {
    min-width: 120px;
  }

  .mail-track-cell-subject {
    min-width: 180px;
  }
}

.mail-track-ocr-details {
  margin-bottom: 20px;
}

.mail-track-ocr-summary {
  cursor: pointer;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.mail-track-ocr-body {
  margin-top: 8px;
}

.mail-track-ocr-text {
  font-family: "Courier New", monospace;
  font-size: 12px;
  width: 100%;
  background: var(--bg-tertiary);
  resize: vertical;
}

.mail-track-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.mail-track-btn-lg {
  padding: 12px 24px;
}

.mail-track-save-btn {
  display: none;
  padding: 12px 32px;
  font-size: 15px;
}

/* Usage instructions */
.mail-track-guide-card {
  margin-top: 40px;
  border: 1px solid rgba(240, 185, 11, 0.24);
  background: linear-gradient(180deg, #fffef9 0%, #ffffff 100%);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(120, 88, 12, 0.08);
}

.mail-track-guide-head {
  padding: 16px 22px;
  border-bottom: 1px solid rgba(240, 185, 11, 0.24);
  background: linear-gradient(90deg, rgba(240, 185, 11, 0.18), rgba(240, 185, 11, 0.04));
  border-radius: 14px 14px 0 0;
}

.mail-track-guide-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #5b3d00;
  letter-spacing: 0.3px;
}

.mail-track-guide-title i {
  margin-right: 8px;
  color: #d89a00;
}

.mail-track-guide-body {
  padding: 24px;
}

.mail-track-guide-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.mail-track-guide-steps::before {
  content: '';
  position: absolute;
  top: 27px;
  left: 16.5%;
  right: 16.5%;
  height: 2px;
  background: linear-gradient(90deg, rgba(240, 185, 11, 0.2), rgba(240, 185, 11, 0.58), rgba(240, 185, 11, 0.2));
  z-index: 0;
}

.mail-track-guide-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 22px 16px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 251, 235, 0.38));
  border: 1px solid rgba(240, 185, 11, 0.2);
  border-radius: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.mail-track-guide-step:hover {
  transform: translateY(-2px);
  border-color: rgba(240, 185, 11, 0.45);
  box-shadow: 0 10px 20px rgba(185, 130, 6, 0.12);
}

.mail-track-guide-step-no {
  width: 40px;
  height: 40px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 8px 18px rgba(200, 138, 0, 0.25);
}

.mail-track-guide-step-no--1 {
  background: linear-gradient(135deg, #f8cf4f, #f0b90b);
}

.mail-track-guide-step-no--2 {
  background: linear-gradient(135deg, #f0b90b, #d89a00);
}

.mail-track-guide-step-no--3 {
  background: linear-gradient(135deg, #dca000, #ba7f00);
}

.mail-track-guide-step-title {
  font-size: 15px;
  font-weight: 600;
  color: #2e230b;
  margin-bottom: 8px;
}

.mail-track-guide-step-text {
  font-size: 13px;
  color: #564829;
  line-height: 1.6;
}

.mail-track-guide-step-subtext {
  margin-top: 2px;
  font-size: 13px;
  color: #7e6940;
  line-height: 1.6;
}

.mail-track-guide-tip {
  margin-top: 20px;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(240, 185, 11, 0.2), rgba(240, 185, 11, 0.08));
  border: 1px solid rgba(240, 185, 11, 0.35);
  border-radius: 10px;
  font-size: 13px;
  color: #7a4b00;
  line-height: 1.7;
}

.mail-track-guide-tip-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: #805400;
}

.mail-track-guide-tip-head i {
  color: #d89a00;
}

.mail-track-guide-tip-list {
  margin: 0;
  padding-left: 20px;
}

.mail-track-guide-tip-list li + li {
  margin-top: 4px;
}

@media (max-width: 1024px) {
  .mail-track-grid {
    grid-template-columns: 1fr;
  }

  .mail-track-guide-body {
    padding: 18px;
  }

  .mail-track-guide-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .mail-track-guide-steps::before {
    display: none;
  }
}

[data-theme="dark"] .mail-upload-zone {
  background: var(--bg-secondary, #1B212A);
  border-color: rgba(240, 185, 11, 0.26);
}

[data-theme="dark"] .mail-upload-zone:hover {
  background: rgba(240, 185, 11, 0.08);
  border-color: rgba(240, 185, 11, 0.5);
}

[data-theme="dark"] .mail-track-card--shadow {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.26);
}

[data-theme="dark"] .mail-track-guide-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(240, 185, 11, 0.03) 100%);
  border-color: rgba(240, 185, 11, 0.22);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}

[data-theme="dark"] .mail-track-guide-head {
  background: linear-gradient(90deg, rgba(240, 185, 11, 0.16), rgba(240, 185, 11, 0.04));
  border-bottom-color: rgba(240, 185, 11, 0.18);
}

[data-theme="dark"] .mail-track-guide-title {
  color: #F8D15B;
}

[data-theme="dark"] .mail-track-guide-title i {
  color: #F0B90B;
}

[data-theme="dark"] .mail-track-guide-step {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(240, 185, 11, 0.04));
  border-color: rgba(240, 185, 11, 0.2);
}

[data-theme="dark"] .mail-track-guide-step:hover {
  border-color: rgba(240, 185, 11, 0.38);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.24);
}

[data-theme="dark"] .mail-track-guide-step-title {
  color: var(--text-primary, #F5F5F5);
}

[data-theme="dark"] .mail-track-guide-step-text {
  color: var(--text-secondary, #B9C0CC);
}

[data-theme="dark"] .mail-track-guide-step-subtext {
  color: #9AA4B2;
}

[data-theme="dark"] .mail-track-guide-tip {
  background: rgba(240, 185, 11, 0.12);
  border-color: rgba(240, 185, 11, 0.28);
  color: #E7C96B;
}

[data-theme="dark"] .mail-track-guide-tip-head {
  color: #F8D15B;
}

[data-theme="dark"] .mail-track-guide-tip-head i {
  color: #F0B90B;
}