:root {
    --primary-color: #046B5F;
    --secondary-color: #51B435;
    --purple-color: #6B46C1;
    --bg-light: #F0F7F7;
    --white: #ffffff;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background-color: #f1f1f1;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    font-size: 18px;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    background-color: var(--white);
    color: var(--purple-color);
    cursor: pointer;
}

.tab-btn.active {
    background-color: var(--purple-color);
    color: var(--white);
}

.calculator {
    background-color: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.input-section {
    margin-bottom: 20px;
}

.input-grid {
    margin-top: 15px;
}

.input-headers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    background-color: var(--primary-color);
    padding: 15px;
    color: var(--white);
    font-weight: bold;
    border-radius: 4px 4px 0 0;
}

.input-fields {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    background-color: var(--bg-light);
    padding: 15px;
    border-radius: 0 0 4px 4px;
}

input[type="number"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.action-btn {
    width: 100%;
    padding: 12px;
    font-size: 20px;
    font-weight: bold;
    background-color: var(--purple-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin: 10px 0;
}

.results {
    margin: 20px 0;
}

.hidden {
    display: none;
}

.result-section {
    margin: 20px 0;
}

.result-grid {
    margin-top: 10px;
}

.grid-headers, .grid-values {
    display: grid;
    gap: 10px;
    padding: 12px;
}

.grid-headers {
    background-color: var(--secondary-color);
    color: var(--white);
    font-weight: bold;
    border-radius: 4px 4px 0 0;
}

.grid-values {
    background-color: var(--bg-light);
    border-radius: 0 0 4px 4px;
}

.total-beneficiaries, .total-costs {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 15px;
    border-radius: 4px;
    margin: 10px 0;
    font-weight: bold;
}

#combinedTotalTitle {
    font-size: 1.1em;
    margin-bottom: 8px;
}

#combinedTotal {
    font-size: 1.2em;
}






/* PWA Install Button */
.install-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #6B46C1;
    color: #ffffff;
    border: none;
    border-radius: 30px;
    padding: 14px 22px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.25);
    z-index: 9999;
}

.install-btn:hover {
    background-color: #5532a8;
}

.install-btn.hidden {
    display: none;
}

/* Mobile position */
@media (max-width: 600px) {
    .install-btn {
        right: 50%;
        transform: translateX(50%);
        bottom: 16px;
        font-size: 15px;
    }
}