/* Reset styles only for the calculator container */
#gpa-calc-container {
    font-family: Arial, sans-serif;
    --gpa-primary: #3498db;
    --gpa-secondary: #2ecc71;
    --gpa-danger: #e74c3c;
    --gpa-light: #f9f9f9;
    --gpa-border: #ddd;
    --gpa-text: #333;
    
    max-width: 700px;
    margin: 20px auto;
    padding: 0;
    border: 1px solid var(--gpa-border);
    border-radius: 8px;
    overflow: hidden;
    background: white;
}

/* Header styles */
#gpa-calc-container .gpa-calc-header {
    background: var(--gpa-primary);
    color: white;
    padding: 20px;
    text-align: center;
}

#gpa-calc-container .gpa-calc-header h2 {
    margin: 0;
    font-size: 1.8rem;
}

#gpa-calc-container .gpa-calc-header p {
    margin: 5px 0 0;
    opacity: 0.9;
}

/* Instructions */
#gpa-calc-container .gpa-calc-instructions {
    padding: 15px 20px;
    background: var(--gpa-light);
    border-bottom: 1px solid var(--gpa-border);
}

#gpa-calc-container .gpa-calc-instructions h3 {
    margin-top: 0;
    color: var(--gpa-primary);
}

#gpa-calc-container .gpa-calc-instructions ol {
    padding-left: 20px;
    margin-bottom: 0;
}

/* Form styles */
#gpa-calc-container .gpa-calc-form {
    padding: 20px;
}

#gpa-calc-container h3 {
    color: var(--gpa-primary);
    margin: 15px 0 10px;
}

.subject-grid {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 40px;
    gap: 10px;
    margin-bottom: 8px;
}

.subject-grid.headers span {
    font-weight: bold;
    font-size: 0.9rem;
    color: #555;
}

.subject-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 40px;
    gap: 10px;
    margin-bottom: 10px;
    align-items: center;
}

.subject-row input,
.subject-row select {
    padding: 8px 10px;
    border: 1px solid var(--gpa-border);
    border-radius: 4px;
    width: 100%;
}

.credit-input {
    text-align: center;
}

.remove-btn {
    background: var(--gpa-danger);
    color: white;
    border: none;
    border-radius: 4px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.remove-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.button-group {
    display: flex;
    gap: 10px;
    margin: 25px 0 15px;
    flex-wrap: wrap;
}

.button-group button {
    padding: 10px 15px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.add-subject {
    background: var(--gpa-secondary);
    color: white;
}

.calculate-gpa {
    background: var(--gpa-primary);
    color: white;
}

.reset-form {
    background: white;
    border: 1px solid var(--gpa-border);
}

/* Results section */
#gpa-calc-container .gpa-calc-results {
    padding: 20px;
    border-top: 1px solid var(--gpa-border);
}

.final-gpa-display {
    text-align: center;
    margin: 20px 0;
}

.gpa-value {
    font-size: 3rem;
    font-weight: bold;
    color: var(--gpa-primary);
    margin: 10px 0;
}

.gpa-scale {
    color: #666;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.results-table th,
.results-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--gpa-border);
}

.results-table th {
    background: var(--gpa-light);
}

.gpa-interpretation {
    margin-top: 25px;
    padding: 15px;
    background: var(--gpa-light);
    border-radius: 4px;
}

.gpa-interpretation h4 {
    margin-top: 0;
    color: var(--gpa-primary);
}

.gpa-interpretation ul {
    padding-left: 20px;
    margin-bottom: 0;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .subject-grid,
    .subject-row {
        grid-template-columns: 1.5fr 1fr 1fr 40px;
    }
    
    #gpa-calc-container .button-group button {
        flex: 1;
        min-width: 120px;
    }
}