/* ===========================================
   GPA-CALCULATOR-STYLE.CSS - GPA Calculator Specific Styles
   Base styles are in base.css
   =========================================== */

/* --- Page-specific CSS Variables --- */
:root {
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --danger-hover: #c82333;
}

/* --- GPA Calculator Section --- */
.gpa-calculator-section {
    padding: 40px 0 80px 0;
}

.gpa-calculator-container {
    background-color: var(--bg-color-light);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    padding: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.current-info {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.input-group label {
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color-dark);
}

.input-group input {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 168, 204, 0.1);
}

/* --- Courses Table --- */
.courses-table-container {
    overflow-x: auto;
    margin-bottom: 20px;
}

.courses-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.courses-table th,
.courses-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.courses-table th {
    background-color: var(--bg-color-grey);
    font-weight: 600;
    color: var(--text-color-dark);
}

.courses-table td input,
.courses-table td select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.courses-table td input[type="checkbox"] {
    width: auto;
    transform: scale(1.2);
    margin: 0;
}

.course-name-input {
    width: 100%;
}

.remove-btn {
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
}

.remove-btn:hover {
    background-color: var(--danger-hover);
}

/* --- GPA Results --- */
.gpa-results {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.gpa-result-box {
    flex: 1;
    padding: 20px;
    border-radius: 8px;
    background-color: var(--bg-color-grey);
    text-align: center;
    transition: var(--transition);
}

.gpa-result-box h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.gpa-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color-dark);
}

.gpa-result-box.good {
    background-color: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--success-color);
}

.gpa-result-box.good .gpa-value {
    color: var(--success-color);
}

.gpa-result-box.warning {
    background-color: rgba(255, 193, 7, 0.1);
    border: 1px solid var(--warning-color);
}

.gpa-result-box.warning .gpa-value {
    color: var(--warning-color);
}

.error-message {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    padding: 15px;
    border-radius: 6px;
    margin-top: 20px;
    text-align: center;
    font-weight: 500;
    border: 1px solid var(--danger-color);
}

.error-message.hidden {
    display: none;
}

/* --- Old Grade Column --- */
.old-grade-column {
    opacity: 0.3;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.old-grade-column.visible {
    opacity: 1;
    pointer-events: auto;
}

.old-grade-cell {
    opacity: 0.3;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.old-grade-cell.visible {
    opacity: 1;
    pointer-events: auto;
}

/* --- Responsive for GPA Calculator --- */
@media (max-width: 768px) {
    .current-info {
        flex-direction: column;
    }

    .gpa-results {
        flex-direction: column;
    }

    .courses-table {
        font-size: 0.85rem;
    }

    .courses-table th,
    .courses-table td {
        padding: 8px;
    }
}