```css
/* =====================================================
   GLOBAL RESET
   ===================================================== */

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


html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}


body {
    font-family:
        Arial,
        Helvetica,
        sans-serif;

    background-color: #f1f5f9;
    color: #1e293b;
}


/* =====================================================
   TOP BANNER
   10% of viewport height
   ===================================================== */

.top-banner {
    width: 100%;
    height: 10vh;

    display: flex;
    align-items: center;

    padding: 0 30px;

    background-color: #1e293b;
    color: white;
}


.banner-content h1 {
    font-size: 26px;
    margin-bottom: 4px;
}


.banner-content p {
    font-size: 14px;
    opacity: 0.75;
}


/* =====================================================
   MAIN CONTAINER
   Remaining 90% of viewport height
   ===================================================== */

.main-container {
    width: 100%;
    height: 90vh;

    display: flex;
}


/* =====================================================
   LEFT PANEL
   30% WIDTH
   Full height below banner
   ===================================================== */

.left-panel {
    width: 30%;
    height: 100%;

    background-color: white;

    border-right: 1px solid #cbd5e1;

    overflow-y: auto;
}


.panel-header,
.section-header {
    height: 55px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 20px;

    border-bottom: 1px solid #e2e8f0;

    background-color: #f8fafc;
}


.panel-header h2,
.section-header h2 {
    font-size: 17px;
    font-weight: 600;
}


.panel-content {
    padding: 20px;
}


/* =====================================================
   FORM CONTROLS
   ===================================================== */

.control-group {
    margin-bottom: 25px;
}


.control-group > label:first-child {
    display: block;

    margin-bottom: 8px;

    font-size: 13px;
    font-weight: 600;

    color: #475569;
}


input[type="text"],
select {
    width: 100%;

    padding: 10px 12px;

    border: 1px solid #cbd5e1;
    border-radius: 6px;

    background-color: white;

    font-size: 14px;

    outline: none;
}


input[type="text"]:focus,
select:focus {
    border-color: #64748b;
}


.checkbox-label {
    display: flex;

    align-items: center;

    gap: 8px;

    margin-bottom: 10px;

    font-size: 14px;

    color: #475569;
}


.checkbox-label input {
    width: 16px;
    height: 16px;
}


/* =====================================================
   STATISTICS
   ===================================================== */

.statistics {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 10px;

    margin-top: 30px;
}


.stat-card {
    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    padding: 15px 5px;

    border: 1px solid #e2e8f0;

    border-radius: 8px;

    background-color: #f8fafc;
}


.stat-value {
    font-size: 20px;

    font-weight: 700;

    color: #0f172a;
}


.stat-label {
    margin-top: 5px;

    font-size: 11px;

    color: #64748b;

    text-align: center;
}


/* =====================================================
   RIGHT PANEL
   70% WIDTH
   ===================================================== */

.right-panel {
    width: 70%;
    height: 100%;

    display: flex;

    flex-direction: column;
}


/* =====================================================
   MAP PANEL
   60% OF RIGHT PANEL HEIGHT
   ===================================================== */

.map-panel {
    width: 100%;
    height: 60%;

    display: flex;

    flex-direction: column;

    background-color: white;
}


.map-panel .section-header {
    flex-shrink: 0;
}


#map {
    width: 100%;
    height: 100%;

    flex: 1;
}


/* =====================================================
   MAP STATUS
   ===================================================== */

.map-status {
    display: flex;

    align-items: center;

    gap: 7px;

    font-size: 12px;

    color: #64748b;
}


.status-indicator {
    width: 8px;
    height: 8px;

    border-radius: 50%;

    background-color: #22c55e;
}


/* =====================================================
   BOTTOM PANEL
   Remaining 40% of right panel
   ===================================================== */

.bottom-panel {
    width: 100%;
    height: 40%;

    display: flex;

    flex-direction: column;

    background-color: white;

    border-top: 1px solid #cbd5e1;
}


.bottom-panel .section-header {
    flex-shrink: 0;
}


.bottom-content {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 20px;

    padding: 20px;

    overflow-y: auto;
}


.info-card {
    padding: 20px;

    border: 1px solid #e2e8f0;

    border-radius: 8px;

    background-color: #f8fafc;
}


.info-card h3 {
    margin-bottom: 10px;

    font-size: 15px;

    color: #334155;
}


.info-card p {
    font-size: 13px;

    line-height: 1.6;

    color: #64748b;
}


/* =====================================================
   LEAFLET POPUP
   ===================================================== */

.popup h3 {
    margin-bottom: 10px;

    font-size: 16px;
}


.popup p {
    margin-bottom: 5px;

    font-size: 13px;
}


/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 900px) {

    .left-panel {
        width: 35%;
    }

    .right-panel {
        width: 65%;
    }

    .bottom-content {
        grid-template-columns: 1fr;
    }

}


@media (max-width: 650px) {

    html,
    body {
        overflow: auto;
    }


    .top-banner {
        height: auto;

        min-height: 80px;

        padding: 15px 20px;
    }


    .main-container {
        height: auto;

        min-height: calc(100vh - 80px);

        flex-direction: column;
    }


    .left-panel,
    .right-panel {
        width: 100%;
    }


    .left-panel {
        height: auto;

        max-height: none;

        border-right: none;

        border-bottom: 1px solid #cbd5e1;
    }


    .right-panel {
        height: 800px;
    }


    .map-panel {
        height: 60%;
    }


    .bottom-panel {
        height: 40%;
    }

}
```