body {
    padding: 0;
    margin: 0;
}

.grade-mapping {
    margin-top: 25px;
    margin-bottom: 25px;
}

.cgpa-form-container {
    margin: 20px 0;
    padding: 0 15px;
}

.cgpa-form {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border-radius: 2px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.form-header {
    display: flex;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    padding: 19px 10px;
}

.form-col {
    padding: 0 19px;
    text-align: center;
}

.semester-col {
    flex: 2;
    text-align: left;
}

.credits-col,
.sgpa-col {
    flex: 1;
}

.form-row {
    display: flex;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    align-items: center;
}

.form-row:nth-child(even) {
    background-color: #f9f9f9;
}

.form-row:hover {
    background-color: #f0f4ff;
}

.sgpa-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--button-border-radius);
    font-size: 1rem;
    transition: all 0.25s ease;
}

.sgpa-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.1);
}

.sgpa-input.error {
    border-color: var(--error-color);
    background-color: #fdf2f2;
}

.calculation-steps {
    line-height: 1.6;
}

.calculation-steps p {
    margin: 8px 0;
}

.formula-section {
    margin-top: 30px;
    display: none;
}

.formula-section.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

.formula-display {
    background: #f0f4ff;
    padding: 15px;
    border-radius: var(--button-border-radius);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
    margin-top: 15px;
}

.cgpa-container {
    margin-bottom: 10px;
}

.percentage-container,
.division-container {
    margin-top: 15px;
}

@media (max-width: 768px) {
    .cgpa-form-container {
        padding: 0 10px;
        margin: 15px 0;
    }

    .form-header {
        padding: 15px 0;
        font-size: 0.9rem;
    }

    .form-row {
        padding: 15px 0;
        font-size: 0.9rem;
    }

    .form-col {
        padding: 0 10px;
    }

    .semester-col {
        flex: 1.5;
        font-size: 0.85rem;
    }

    .credits-col {
        flex: 0.8;
        font-size: 0.85rem;
    }

    .sgpa-col {
        flex: 1.2;
    }

    .sgpa-input {
        padding: 12px 8px;
        font-size: 1rem;
        min-height: 44px;
    }

    .calculation-steps p {
        font-size: 0.9rem;
        margin: 10px 0;
    }

    .formula-display {
        font-size: 1rem;
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .cgpa-form-container {
        padding: 0 5px;
        margin: 10px 0;
    }

    .form-header {
        padding: 12px 8px;
        font-size: 0.85rem;
    }

    .form-row {
        padding: 12px 0;
        font-size: 0.85rem;
    }

    .form-col {
        padding: 0 15px;
    }

    .semester-col {
        flex: 1.2;
        font-size: 0.8rem;
    }

    .credits-col {
        flex: 0.7;
        font-size: 0.8rem;
    }

    .sgpa-col {
        flex: 1.3;
    }

    .sgpa-input {
        padding: 10px 6px;
        font-size: 0.95rem;
        min-height: 40px;
    }

    .calculation-steps p {
        font-size: 0.85rem;
        margin: 8px 0;
    }

    .formula-display {
        font-size: 0.9rem;
        padding: 10px;
    }
}

@media (max-width: 360px) {
    .cgpa-form-container {
        padding: 0 2px;
    }

    .form-header {
        padding: 10px 0;
        font-size: 0.8rem;
    }

    .form-row {
        padding: 10px 0;
        font-size: 0.8rem;
    }

    .form-col {
        padding: 0 5px;
    }

    .semester-col {
        flex: 1.1;
        font-size: 0.75rem;
    }

    .credits-col {
        flex: 0.6;
        font-size: 0.75rem;
    }

    .sgpa-col {
        flex: 1.4;
    }

    .sgpa-input {
        padding: 8px 4px;
        font-size: 0.9rem;
        min-height: 36px;
    }

    .calculation-steps p {
        font-size: 0.8rem;
        margin: 6px 0;
    }

    .formula-display {
        font-size: 0.85rem;
        padding: 8px;
    }
}