:root {
    --bg: #0f172a;
    --panel: #1e293b;
    --border: #334155;
    --text: #e2e8f0;
    --accent: #3b82f6;
    --success: #22c55e;
    --danger: #ef4444;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

/* Header */
#expHeader {
    background: var(--panel);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 10px;
}
.header-left h1 { font-size: 18px; font-weight: 700; color: #60a5fa; }
.status { font-size: 12px; color: #94a3b8; margin-left: 12px; }
.header-controls { display: flex; gap: 8px; align-items: center; }
.btn {
    background: var(--border); color: var(--text); border: none; padding: 8px 12px;
    border-radius: 6px; cursor: pointer; font-size: 12px; font-weight: 600; transition: 0.2s;
}
.btn:hover { filter: brightness(1.1); }
.btn.primary { background: var(--accent); }
.btn.success { background: var(--success); color: #000; }
.btn.danger { background: var(--danger); }
.map-tools { display: flex; gap: 6px; margin-left: 10px; padding-left: 10px; border-left: 1px solid var(--border); }

.seed-input-group { display: flex; gap: 4px; margin-left: 8px; }
.seed-input-group input { background: #0f172a; border: 1px solid #334155; color: #fff; border-radius: 4px; text-align: center; }
.seed-input-group input:focus { outline: none; border-color: #3b82f6; }

/* Map */
#mapContainer { flex: 1; position: relative; overflow: hidden; }
#map { width: 100%; height: 100%; background: #0b1120; }
#customMapOverlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 400; display: flex; align-items: center; justify-content: center;
}
#customMapOverlay img {
    max-width: 100%; max-height: 100%; pointer-events: auto; cursor: grab;
    transform-origin: center center; transition: transform 0.1s linear;
}
#customMapOverlay.dragging img { cursor: grabbing; }

/* Popover */
.popover {
    position: absolute; background: var(--panel); border: 1px solid var(--border);
    border-radius: 8px; padding: 12px; z-index: 9999; box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    min-width: 220px; pointer-events: auto;
}
.popover.hidden { display: none; }
.popover-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.popover-header h4 { font-size: 14px; color: #fff; }
.close-btn { background: none; border: none; color: #94a3b8; font-size: 18px; cursor: pointer; }
.popover-footer { margin-top: 10px; text-align: right; }
.config-row { margin-bottom: 8px; }
.config-row label { display: block; font-size: 11px; color: #94a3b8; margin-bottom: 3px; }
.config-row select, .config-row input {
    width: 100%; background: #0f172a; border: 1px solid var(--border); color: #fff;
    padding: 6px; border-radius: 4px; font-size: 12px;
}

/* Markers */
.storm-marker {
    background: rgba(0,0,0,0.6); border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-weight: bold; font-size: 10px; color: #fff; border: 2px solid #fff;
    transition: transform 0.1s;
}
.storm-marker:hover { transform: scale(1.1); }
.day-break {
    position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
    background: #facc15; color: #000; font-size: 9px; padding: 1px 4px; border-radius: 4px; white-space: nowrap;
}