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

:root {
    --bg-dark: #0a0e27;
    --bg-darker: #050814;
    --bg-card: #131829;
    --primary: #a78bfa;
    --primary-bright: #c4b5fd;
    --accent: #06b6d4;
    --accent-bright: #22d3ee;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --text-dimmer: #64748b;
    --border: #1e293b;
    --border-bright: #334155;
    --success: #10b981;
    --danger: #ef4444;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-bright);
    padding: 1rem 2rem;
    flex-shrink: 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.home-link {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.home-link:hover {
    color: var(--primary-bright);
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(167, 139, 250, 0.4);
}

.btn-danger {
    background-color: var(--danger);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.pane {
    overflow: hidden;
    position: relative;
}

.map-pane {
    flex: 2;
    min-width: 300px;
}

.code-pane {
    flex: 1;
    min-width: 350px;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-card);
}

.resizer {
    width: 4px;
    background-color: var(--border);
    cursor: col-resize;
    transition: background-color 0.2s;
}

.resizer:hover {
    background-color: var(--primary);
}

.resizer:active {
    background-color: var(--accent);
}

#map {
    width: 100%;
    height: 100%;
    background-color: var(--bg-darker);
}

.map-layer-control {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    z-index: 1000;
    display: flex;
    gap: 0.5rem;
    background-color: var(--bg-card);
    padding: 0.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-bright);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.layer-btn {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-darker);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.layer-btn:hover {
    background-color: var(--border);
    color: var(--text);
    border-color: var(--primary);
}

.layer-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--bg-dark);
    border-color: transparent;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--bg-darker);
    border-bottom: 1px solid var(--border);
}

.code-title {
    font-weight: 600;
    color: var(--text-dim);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.format-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background-color: transparent;
    border: 1px solid var(--border-bright);
    color: var(--text-dim);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    font-family: 'Courier New', monospace;
}

.btn-icon:hover {
    background-color: var(--border);
    color: var(--text);
    border-color: var(--primary);
}

#geojsonEditor {
    flex: 1;
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-card);
    color: var(--text);
    border: none;
    outline: none;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: none;
    overflow: auto;
}

#geojsonEditor::selection {
    background-color: var(--primary);
    color: var(--bg-dark);
}

/* Leaflet overrides for dark theme */
.leaflet-container {
    background-color: var(--bg-darker);
}

.leaflet-bar {
    border: 1px solid var(--border-bright);
    background-color: var(--bg-card);
}

.leaflet-bar a {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.leaflet-bar a:hover {
    background-color: var(--border);
    color: var(--primary-bright);
}

.leaflet-popup-content-wrapper {
    background-color: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border-bright);
}

.leaflet-popup-tip {
    background-color: var(--bg-card);
    border: 1px solid var(--border-bright);
}

.leaflet-control-attribution {
    background-color: rgba(19, 24, 41, 0.8);
    color: var(--text-dimmer);
}

.leaflet-control-attribution a {
    color: var(--primary);
}

/* Edit mode - all editing icons get smooth transitions */
.leaflet-marker-icon.leaflet-div-icon.leaflet-editing-icon {
    transition: all 0.2s ease;
}

/* Midpoint markers (semi-transparent ones for adding vertices) */
/* Leaflet.draw applies inline opacity to midpoints, we override it */
.leaflet-marker-icon.leaflet-div-icon.leaflet-editing-icon[style*="opacity: 0."] {
    opacity: 0.3 !important;
}

.leaflet-marker-icon.leaflet-div-icon.leaflet-editing-icon[style*="opacity: 0."]:hover {
    opacity: 1 !important;
    background-color: var(--success) !important;
    border-color: var(--success) !important;
    cursor: cell !important;
    transform: scale(1.2);
}

/* Vertex markers (main corner points for dragging/removing) */
.leaflet-marker-icon.leaflet-div-icon.leaflet-editing-icon:not([style*="opacity: 0."]):hover {
    background-color: var(--danger) !important;
    border-color: var(--danger) !important;
    transform: scale(1.2);
}

/* Drawing controls - match zoom button styling */
.leaflet-draw-toolbar {
    margin-top: 10px !important;
}

.leaflet-draw-toolbar a {
    background-color: var(--bg-card) !important;
    border-bottom: 1px solid var(--border) !important;
    position: relative;
}

.leaflet-draw-toolbar a:hover {
    background-color: var(--border) !important;
}

/* Create a pseudo-element for the inverted icon */
.leaflet-draw-toolbar a::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: inherit;
    background-color: transparent !important;
    filter: invert(1) brightness(2);
    pointer-events: none;
}

.leaflet-draw-actions a {
    background-color: var(--bg-card) !important;
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
}

.leaflet-draw-actions a:hover {
    background-color: var(--border) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .container {
        flex-direction: column;
    }

    .resizer {
        width: 100%;
        height: 4px;
        cursor: row-resize;
    }

    .map-pane,
    .code-pane {
        min-height: 200px;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--border-bright);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}