#sqft-calc-wrapper {
    --primary-green: #27ae60;
    --hover-green: #2ecc71;
    --bg-grey: #f4f4f4;
    --card-white: #ffffff;
    --text-dark: #333333;
    --border-grey: #dddddd;
    --input-text: #000000;
    
    background-color: var(--bg-grey);
    padding: 40px 10px;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#sqft-calc-wrapper * { 
    box-sizing: border-box; 
}

.calculator-card {
    background: var(--card-white) !important;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-top: 8px solid var(--primary-green) !important;
    width: 100%;
    max-width: 550px;
}

.calc-title {
    text-align: center;
    font-size: 24px;
    color: var(--primary-green) !important;
    margin-bottom: 25px;
    font-weight: 700;
    margin-top: 0;
}

.form-group { 
    margin-bottom: 15px; 
    text-align: left; 
}

#sqft-calc-wrapper label {
    display: block;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
    color: #555 !important;
}

/* Black text for boxes - Important to override WP themes */
#sqft-calc-wrapper select, 
#sqft-calc-wrapper input {
    width: 100% !important;
    padding: 12px !important;
    border: 1px solid var(--border-grey) !important;
    border-radius: 8px !important;
    font-size: 16px !important;
    background-color: #ffffff !important;
    color: #000000 !important; 
    outline: none !important;
    height: auto !important;
    box-shadow: none !important;
    margin-bottom: 5px;
}

#sqft-calc-wrapper select:focus, 
#sqft-calc-wrapper input:focus {
    border-color: var(--primary-green) !important;
}

.ft-in-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.input-section {
    background: #fdfdfd;
    padding: 15px;
    border-radius: 10px;
    border: 1px solid #eee;
    margin-bottom: 20px;
}

.price-section {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--border-grey);
    margin-bottom: 20px;
}

.price-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.button-group {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}

.btn-calc { 
    background: var(--primary-green) !important; 
    color: #fff !important; 
    font-weight: bold !important;
    cursor: pointer;
    border: none !important;
    border-radius: 8px !important;
    padding: 14px !important;
}

.btn-calc:hover { 
    background: var(--hover-green) !important; 
}

.btn-reset { 
    background: #666 !important; 
    color: #fff !important;
    cursor: pointer;
    border: none !important;
    border-radius: 8px !important;
    padding: 14px !important;
}

.result-display {
    margin-top: 10px;
    padding: 20px;
    background: #f1f8f4;
    border: 1px solid var(--primary-green);
    border-radius: 12px;
    text-align: center;
}

.res-title { 
    font-size: 12px; 
    font-weight: bold; 
    color: var(--primary-green); 
    text-transform: uppercase; 
}

.res-value { 
    font-size: 32px; 
    font-weight: 800; 
    color: #333; 
    margin: 5px 0; 
}

.unit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #ddd;
}

.unit-item { 
    color: #666; 
    font-size: 14px; 
}

.unit-item span { 
    display: block; 
    color: var(--primary-green); 
    font-weight: bold; 
    font-size: 18px; 
}

.formula-section {
    margin-top: 30px;
    background: var(--card-white);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-grey);
    width: 100%;
    max-width: 550px;
    text-align: left;
}

.formula-section h3 { 
    font-size: 18px; 
    color: var(--primary-green); 
    margin-top: 0; 
}

.formula-section ul { 
    padding-left: 20px; 
    font-size: 14px; 
    color: #555; 
}

.error-text { 
    color: #d9534f; 
    font-size: 13px; 
    margin-top: 10px; 
}