* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 20px;
    background: #f5f5f5;
}

#app {
    max-width: 1400px;
    margin: 0 auto;
}

h2 {
    margin-top: 0;
    color: #333;
}

h3 {
    margin-top: 0;
    color: #555;
}

.section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hidden {
    display: none !important;
}

/* Dashboard */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.dashboard-actions {
    display: flex;
    gap: 10px;
}

#sessions-list {
    display: grid;
    gap: 15px;
}

.session-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.session-card:hover {
    border-color: #2563eb;
}

.session-info {
    flex: 1;
}

.session-info h3 {
    margin: 0 0 5px 0;
    font-size: 16px;
}

.session-info p {
    margin: 0;
    font-size: 13px;
    color: #6b7280;
}

.session-meta {
    display: flex;
    gap: 15px;
    margin-top: 8px;
}

.session-meta span {
    font-size: 12px;
    color: #9ca3af;
}

.session-actions {
    display: flex;
    gap: 10px;
}

.session-status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
}

.session-status.upload { background: #fef3c7; color: #92400e; }
.session-status.schema { background: #dbeafe; color: #1e40af; }
.session-status.process { background: #d1fae5; color: #065f46; }
.session-status.complete { background: #10b981; color: white; }

.empty-state {
    text-align: center;
    padding: 40px;
    color: #6b7280;
}

/* Back Button */
.back-btn {
    background: transparent;
    color: #6b7280;
    padding: 5px 10px;
    margin-bottom: 15px;
    font-size: 13px;
}

.back-btn:hover {
    background: #f3f4f6;
    color: #374151;
}

button {
    background: #2563eb;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background: #1d4ed8;
}

button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

button.secondary {
    background: #6b7280;
}

button.secondary:hover {
    background: #4b5563;
}

button.danger {
    background: #dc2626;
}

button.danger:hover {
    background: #b91c1c;
}

input[type="file"],
input[type="text"],
input[type="number"],
select {
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 14px;
}

input[type="text"] {
    width: 300px;
}

/* Upload Section */
#upload-section input {
    margin-right: 10px;
}

#upload-progress {
    display: block;
    width: 100%;
    height: 20px;
    margin-top: 10px;
}

#upload-status {
    margin-top: 10px;
    color: #666;
}

/* Schema Section */
.schema-pdf-info {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 15px;
}

.candidate-inputs {
    margin-bottom: 20px;
}

.candidate-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.candidate-row label {
    font-weight: 500;
    min-width: 90px;
}

.candidate-row input[type="text"] {
    flex: 1;
    max-width: 250px;
}

.candidate-row input[type="number"] {
    width: 80px;
}

/* Process Section */
.process-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

#progress-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

#progress-bar {
    width: 200px;
    height: 20px;
}

/* Page Thumbnails */
#process-btn,
#create-station-btn {
    margin-bottom: 20px;
}

#page-thumbnails {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.page-thumb {
    border: 2px solid #d1d5db;
    border-radius: 4px;
    padding: 5px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.page-thumb:hover {
    border-color: #2563eb;
}

.page-thumb.selected {
    border-color: #2563eb;
    background: #dbeafe;
}

.page-thumb.processed {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #10b981;
    background: #d1fae5;
}

.page-thumb img {
    width: 100px;
    height: auto;
    display: block;
}

.page-thumb span {
    font-size: 12px;
    color: #666;
}

/* Split View */
#split-view {
    display: flex;
    flex-direction: column;
}

.split-view-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.split-view-nav button {
    margin: 0;
    padding: 6px 12px;
    font-size: 13px;
    line-height: 1.4;
}

.station-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

#station-nav-info {
    font-size: 13px;
    color: #6b7280;
    min-width: 60px;
    text-align: center;
}

#split-view-container {
    display: flex;
    gap: 20px;
    min-height: 600px;
}

#pdf-viewer {
    flex: 1;
    background: #1f2937;
    border-radius: 8px;
    padding: 15px;
    overflow-y: auto;
    max-height: 80vh;
}

#pdf-viewer h3 {
    color: white;
    margin-bottom: 15px;
}

#pdf-images {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#pdf-images img {
    width: 100%;
    border-radius: 4px;
}

#form-editor {
    flex: 1;
    background: #f9fafb;
    border-radius: 8px;
    padding: 15px;
    overflow-y: auto;
    max-height: 80vh;
}

/* Form Fields */
.form-field {
    margin-bottom: 15px;
    padding: 10px;
    background: white;
    border-radius: 4px;
    border: 1px solid #e5e7eb;
}

.form-field label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: #374151;
}

.field-inputs {
    display: flex;
    gap: 10px;
}

.field-inputs select {
    flex: 1;
}

.field-inputs input {
    width: 100px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e5e7eb;
}

#approve-btn {
    background: #10b981;
}

#approve-btn:hover {
    background: #059669;
}

#cancel-btn {
    background: #6b7280;
}

#cancel-btn:hover {
    background: #4b5563;
}

/* Queue Section */
#queue-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.queue-panel {
    background: #f9fafb;
    border-radius: 8px;
    padding: 15px;
    border: 1px solid #e5e7eb;
}

.queue-panel h3 {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: #374151;
}

.queue-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.queue-header h3 {
    margin: 0;
}

.queue-header-actions {
    display: flex;
    gap: 8px;
}

.queue-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 400px;
    overflow-y: auto;
}

.queue-item {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 12px;
}

.queue-item:hover {
    border-color: #2563eb;
}

.queue-item.flagged {
    background: #fef2f2;
    border-color: #f87171;
}

.queue-item.flagged:hover {
    background: #fee2e2;
    border-color: #ef4444;
}

.queue-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.queue-item-name {
    font-weight: 500;
    color: #1f2937;
}

.rename-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 6px;
    font-size: 14px;
    color: #6b7280;
    opacity: 0.6;
}

.rename-btn:hover {
    opacity: 1;
    color: #2563eb;
    background: none;
}

.rename-input {
    font-size: 14px;
    font-weight: 500;
    padding: 2px 6px;
    border: 1px solid #2563eb;
    border-radius: 4px;
    outline: none;
    width: 150px;
}

.queue-item-pages {
    font-size: 12px;
    color: #6b7280;
}

.queue-item-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.queue-item-actions button {
    padding: 6px 12px;
    font-size: 12px;
}

.queue-item.clickable {
    cursor: pointer;
}

.queue-item.clickable:hover {
    background: #f0f9ff;
}

.queue-item.processing {
    opacity: 0.7;
}

.queue-item.processing::after {
    content: " (Processing...)";
    color: #6b7280;
    font-size: 12px;
}

#pending-queue {
    border: 1px solid #f59e0b;
}

#done-queue {
    border: 1px solid #3b82f6;
}

#approved-queue {
    border: 1px solid #10b981;
}

.empty-queue {
    color: #9ca3af;
    font-size: 13px;
    text-align: center;
    padding: 20px;
}

/* Complete Section */
#complete-section {
    text-align: center;
}

#complete-section button {
    margin: 0 10px;
}

#page-selector {
    margin-top: 50px;
}

#auto-create-section {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

#pages-per-station {
    width: 60px;
}

#toggle-thumbnails-btn {
    margin-top: 10px;
    background: #6b7280;
}

#toggle-thumbnails-btn:hover {
    background: #4b5563;
}

/* Chart Section */
#chart-container {
    max-width: 700px;
    margin: 20px auto;
}

.chart-btn {
    background: #8b5cf6;
}

.chart-btn:hover {
    background: #7c3aed;
}