/* GPA Calculator Specific Styles */

/* GPA-specific color variables */
:root {
    --gpa-primary: #f72585;
    --gpa-secondary: #b5179e;
    --gpa-success: #06d6a0;
    --gpa-warning: #ffd166;
    --gpa-danger: #ef476f;
    --gpa-gradient: linear-gradient(135deg, var(--gpa-primary), var(--gpa-secondary));
}

/* Form Layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.form-help {
    display: block;
    margin-top: var(--space-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

/* GPA Scale Selection */
.scale-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-sm);
}

.scale-option {
    cursor: pointer;
    margin: 0;
}

.scale-option input[type="radio"] {
    display: none;
}

.scale-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-lg);
    border: 2px solid rgba(247, 37, 133, 0.2);
    border-radius: var(--border-radius-md);
    background-color: white;
    transition: var(--transition-normal);
    cursor: pointer;
}

.scale-card strong {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
    color: var(--text-dark);
}

.scale-card small {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.scale-option input[type="radio"]:checked + .scale-card {
    border-color: var(--gpa-primary);
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.1), rgba(181, 23, 158, 0.1));
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(247, 37, 133, 0.2);
}

.scale-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(247, 37, 133, 0.15);
}

/* Course Rows */
.course-row {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    align-items: flex-start;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.course-inputs {
    flex: 1;
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr;
    gap: var(--space-sm);
}

.course-name {
    min-width: 0;
}

.grade-select,
.credit-input {
    min-width: 0;
}

.btn-remove-course {
    background-color: transparent;
    border: 2px solid rgba(239, 71, 111, 0.3);
    color: var(--gpa-danger);
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.btn-remove-course:hover {
    background-color: var(--gpa-danger);
    color: white;
    transform: scale(1.1);
}

.btn-remove-course:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Add Course Button */
.btn-add-course {
    width: 100%;
    background-color: white;
    border: 2px dashed rgba(247, 37, 133, 0.3);
    color: var(--gpa-primary);
    padding: 15px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    margin-bottom: var(--space-lg);
}

.btn-add-course:hover {
    border-color: var(--gpa-primary);
    background-color: rgba(247, 37, 133, 0.05);
    transform: translateY(-2px);
}

.btn-add-course i {
    margin-right: var(--space-sm);
}

/* Cumulative Section */
.cumulative-section {
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.05), rgba(181, 23, 158, 0.05));
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
    border: 1px solid rgba(247, 37, 133, 0.1);
}

.cumulative-section h3 {
    margin: 0 0 var(--space-md) 0;
    color: var(--text-dark);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}

.cumulative-section h3 i {
    margin-right: var(--space-sm);
    color: var(--gpa-primary);
}

/* GPA Button */
.btn-gpa {
    background: var(--gpa-gradient);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(247, 37, 133, 0.3);
    width: 100%;
    margin-top: var(--space-lg);
}

.btn-gpa:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(247, 37, 133, 0.4);
}

.btn-gpa i {
    margin-right: var(--space-sm);
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.result-card {
    background: white;
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid rgba(247, 37, 133, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition-normal);
}

.result-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.result-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gpa-primary);
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.result-unit {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

.result-interpretation {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* Performance Assessment */
.gpa-performance {
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.05), rgba(181, 23, 158, 0.05));
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    margin-top: var(--space-lg);
    border: 1px solid rgba(247, 37, 133, 0.1);
}

.performance-header h4 {
    margin: 0 0 var(--space-md) 0;
    color: var(--text-dark);
    font-size: 1.2rem;
    text-align: center;
}

.performance-bar {
    width: 100%;
    height: 20px;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--space-md);
    position: relative;
}

.performance-fill {
    height: 100%;
    border-radius: 10px;
    transition: all 0.8s ease;
    background: linear-gradient(90deg, var(--gpa-danger), var(--gpa-warning), var(--gpa-success));
    width: 0%;
    position: relative;
}

.performance-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.performance-text {
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-dark);
}

/* Tips Grid */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.tip-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--space-lg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--gpa-primary);
    transition: var(--transition-normal);
}

.tip-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tip-card h4 {
    color: var(--gpa-primary);
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}

.tip-card h4 i {
    margin-right: var(--space-sm);
    font-size: 1.2rem;
}

.tip-card ul {
    list-style: none;
    padding: 0;
}

.tip-card li {
    margin-bottom: var(--space-sm);
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-dark);
    font-size: 0.95rem;
    line-height: 1.5;
}

.tip-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--gpa-primary);
    font-weight: bold;
}

/* Status-specific styles */
.result-card.status-excellent .result-value {
    color: var(--gpa-success);
}

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

.result-card.status-satisfactory .result-value {
    color: var(--gpa-warning);
}

.result-card.status-poor .result-value {
    color: var(--gpa-danger);
}

/* FAQ Section Styles */
.faq-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: white;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.faq-section h2 {
    text-align: center;
    color: var(--gpa-primary);
    font-size: 2rem;
    margin-bottom: var(--space-lg);
}

.faq-item {
    margin-bottom: var(--space-lg);
    border-left: 4px solid var(--gpa-primary);
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.faq-item h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: var(--space-xs);
    position: relative;
}

.faq-item h3::before {
    content: "Q:";
    color: var(--gpa-secondary);
    font-weight: bold;
    margin-right: 8px;
}

.faq-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-muted);
    position: relative;
}

.faq-item p::before {
    content: "A:";
    color: var(--gpa-success);
    font-weight: bold;
    margin-right: 8px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .course-inputs {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .scale-options {
        grid-template-columns: 1fr;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .result-value {
        font-size: 2rem;
    }
    
    .faq-section {
        padding: var(--space-md);
    }

    .faq-item h3 {
        font-size: 1rem;
    }

    .faq-item p {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .scale-card {
        padding: var(--space-md);
    }
    
    .result-card {
        padding: var(--space-md);
    }
    
    .tip-card {
        padding: var(--space-md);
    }
    
    .calculator-container {
        padding: var(--space-md);
    }
    
    .course-row {
        flex-direction: column;
    }
    
    .btn-remove-course {
        width: 100%;
    }
}