* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    height: 100vh;
    overflow: hidden;
}

#app {
    display: flex;
    height: 100vh;
}

#sidebar {
    width: 320px;
    background: #f8f9fa;
    padding: 20px;
    overflow-y: auto;
    border-right: 1px solid #dee2e6;
}

#sidebar h1 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #2d5016;
}

#sidebar h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: #6c757d;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.upload-section,
.filter-section,
.stats-section,
.rides-section,
.unit-toggle {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #dee2e6;
}

.filter-section label,
.unit-toggle label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: #495057;
}

.checkbox-group,
.radio-group {
    background: white;
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 8px;
    margin-bottom: 15px;
    max-height: 120px;
    overflow-y: auto;
}

.checkbox-group .loading-text,
.rides-section .loading-text {
    color: #6c757d;
    font-size: 0.85rem;
    margin: 0;
}

.checkbox-group label,
.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    cursor: pointer;
    font-size: 0.85rem;
}

.checkbox-group label:hover,
.radio-group label:hover {
    background: #f8f9fa;
}

.checkbox-group input[type="checkbox"],
.radio-group input[type="radio"] {
    width: 16px;
    height: 16px;
    margin: 0;
}

/* Slider for coverage filter */
.slider-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.slider-group input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #ced4da;
    border-radius: 3px;
    outline: none;
}

.slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #2d5016;
    cursor: pointer;
}

.slider-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #2d5016;
    cursor: pointer;
    border: none;
}

.slider-group span {
    min-width: 40px;
    text-align: right;
    font-size: 0.85rem;
    font-weight: 600;
    color: #495057;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary {
    width: 100%;
    background: #2d5016;
    color: white;
}

.btn-primary:hover {
    background: #1e3a0f;
}

.btn-primary:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

.btn-secondary {
    width: 100%;
    background: #6c757d;
    color: white;
    margin-top: 8px;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* Navigation section */
.nav-section {
    padding-top: 15px;
}

.nav-section .btn {
    display: block;
    text-align: center;
    text-decoration: none;
}

/* Upload section */
.upload-hint {
    font-size: 0.8rem;
    color: #6c757d;
    margin-bottom: 8px;
}

.upload-area {
    margin-bottom: 8px;
}

.upload-area input[type="file"] {
    width: 100%;
    font-size: 0.85rem;
    padding: 8px;
    border: 2px dashed #ced4da;
    border-radius: 4px;
    background: white;
    cursor: pointer;
}

.upload-area input[type="file"]:hover {
    border-color: #2d5016;
    background: #f8fff5;
}

.file-count {
    font-size: 0.85rem;
    color: #2d5016;
    font-weight: 600;
    margin-bottom: 10px;
    min-height: 1.2em;
}

.upload-section .btn-primary {
    margin-bottom: 10px;
}

.upload-status {
    font-size: 0.85rem;
}

.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: #495057;
    margin-bottom: 4px;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 8px;
    font-size: 0.85rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
}

.form-group input[type="text"]:focus {
    outline: none;
    border-color: #2d5016;
    box-shadow: 0 0 0 2px rgba(45, 80, 22, 0.1);
}

.form-select {
    width: 100%;
    padding: 8px;
    font-size: 0.85rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
    background: white;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: #2d5016;
    box-shadow: 0 0 0 2px rgba(45, 80, 22, 0.1);
}

.form-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.upload-results {
    background: white;
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 10px;
    margin-top: 10px;
}

.upload-result {
    padding: 4px 0;
    font-size: 0.8rem;
    border-bottom: 1px solid #f0f0f0;
}

.upload-result:last-child {
    border-bottom: none;
}

.upload-result.success {
    color: #2563eb;
}

.upload-result.warning {
    color: #f59e0b;
}

.upload-result.error,
.error {
    color: #dc2626;
}

/* Stats panel */
#stats-panel {
    font-size: 0.9rem;
    line-height: 1.6;
}

#stats-panel .stat-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
}

#stats-panel .stat-label {
    color: #6c757d;
}

#stats-panel .stat-value {
    font-weight: 600;
    color: #212529;
}

#stats-panel .stat-highlight {
    background: #e8f5e9;
    margin: 5px -8px;
    padding: 8px;
    border-radius: 4px;
}

#stats-panel .stat-highlight .stat-value {
    color: #2d5016;
    font-size: 1.1em;
}

#stats-panel .stat-group {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #e9ecef;
}

#stats-panel .stat-group-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: #495057;
}

#stats-panel .stat-subrow {
    padding-left: 15px;
    font-size: 0.85em;
}

#stats-panel .stat-subrow .stat-label {
    font-style: italic;
}

/* Coverage status colors (colorblind-friendly) */
.status-ridden {
    color: #f59e0b;
    font-weight: 600;
}

.status-not-ridden {
    color: #2563eb;
    font-weight: 600;
}

/* Year filters */
.year-filters {
    margin-bottom: 15px;
}

.year-filters label:first-child {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #495057;
}

.year-filters .checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 5px 15px;
}

.year-filters .checkbox-group label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    cursor: pointer;
}

/* Rides panel */
.rides-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.rides-summary {
    font-size: 0.85rem;
    color: #6c757d;
}

.rides-select-all {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    color: #495057;
    cursor: pointer;
}

.rides-select-all input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin: 0;
    accent-color: #06b6d4;
}

.rides-list {
    max-height: 180px;
    overflow-y: auto;
}

.ride-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: white;
    border: 1px solid #ced4da;
    border-radius: 4px;
    margin-bottom: 5px;
}

.ride-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.ride-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: #f97316;
}

.ride-info {
    flex: 1;
    min-width: 0;
}

.ride-filename {
    font-size: 0.85rem;
    font-weight: 500;
    color: #212529;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ride-meta {
    font-size: 0.75rem;
    color: #6c757d;
}

.ride-delete {
    background: none;
    border: none;
    color: #ef4444;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 5px;
    line-height: 1;
    flex-shrink: 0;
}

.ride-delete:hover {
    color: #dc2626;
}

/* Ride trace popup */
.ride-popup-content {
    font-size: 0.85rem;
    line-height: 1.6;
}

.ride-popup-content strong {
    color: #f97316;
}

.empty-text {
    color: #6c757d;
    font-size: 0.85rem;
    font-style: italic;
}

.unit-toggle label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.unit-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

#map {
    flex: 1;
    height: 100%;
}

/* Path type colors */
.path-footpath { color: #e74c3c; }
.path-bridleway { color: #3498db; }
.path-restricted-byway { color: #9b59b6; }
.path-boat { color: #27ae60; }

/* Leaflet popup styling */
.leaflet-popup-content {
    font-size: 0.85rem;
    line-height: 1.5;
}

.leaflet-popup-content strong {
    color: #2d5016;
}

.path-popup-content {
    min-width: 200px;
}

.path-popup-content .popup-row {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
    border-bottom: 1px solid #f0f0f0;
}

.path-popup-content .popup-row:last-child {
    border-bottom: none;
}

.path-popup-content .popup-label {
    color: #6c757d;
}

.path-popup-content .popup-divider {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 2px solid #e9ecef;
}

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Legend */
.legend {
    background: white;
    padding: 10px 15px;
    border-radius: 4px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    font-size: 0.8rem;
    line-height: 1.8;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 20px;
    height: 4px;
    border-radius: 2px;
}

/* Layer toggles control */
.layer-toggles {
    background: white;
    padding: 10px 15px;
    border-radius: 4px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    font-size: 0.8rem;
}

.layer-toggles strong {
    display: block;
    margin-bottom: 8px;
}

.layer-toggle-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    cursor: pointer;
}

.layer-toggle-item:hover {
    background: #f8f9fa;
    margin: 0 -8px;
    padding: 4px 8px;
    border-radius: 3px;
}

.layer-toggle-item input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
}

.toggle-color {
    width: 16px;
    height: 4px;
    border-radius: 2px;
}

.layer-divider {
    margin: 8px 0;
    border: none;
    border-top: 1px solid #ddd;
}

.layer-toggle-item input[type="radio"] {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
}

@media (max-width: 768px) {
    #app {
        flex-direction: column;
    }

    #sidebar {
        width: 100%;
        height: auto;
        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid #dee2e6;
    }

    #map {
        height: 60vh;
    }

    .upload-area {
        flex-direction: column;
    }

    .upload-area .btn {
        width: 100%;
    }
}