/* ===== GPA Weighted Calculator Specific Styles ===== */
#gpa-weighted-calculator {
    /* Scope all GPA-specific styles under this root */
}

/* Calculator Hero Section */
.calculator-hero {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(247, 250, 252, 0.95) 100%);
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--border-light);
}

.calculator-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.calculator-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-coral) 0%, #dc2626 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.calculator-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Calculator Main Section */
.calculator-main {
    padding: var(--spacing-xl) 0;
    background: var(--background-gray);
}

.calculator-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2xl);
    max-width: 900px;
    margin: 0 auto;
}

.calculator-panel {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    width: 100%;
    max-width: 700px;
}

/* Mode Sections */
.mode-section {
    display: none;
}

.mode-section.active {
    display: block;
}

/* Courses Container */
.courses-container {
    margin: var(--spacing-lg) 0;
}

.courses-container h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-weight: 600;
}

.course-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.course-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1.5fr auto;
    gap: var(--spacing-sm);
    align-items: center;
}

.course-name {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
}

.course-grade,
.course-credits,
.course-level {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    background: white;
}

.remove-course {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-light);
    background: white;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: var(--text-secondary);
}

.remove-course:hover {
    background: var(--error-red);
    color: white;
    border-color: var(--error-red);
}

.add-course-btn {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background-gray);
    border: 2px dashed var(--border-light);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.add-course-btn:hover {
    background: white;
    border-color: var(--primary-coral);
    color: var(--primary-coral);
}

/* GPA Scale Selector */
.gpa-scale-selector {
    margin-bottom: var(--spacing-lg);
}

.gpa-scale-selector label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.gpa-scale-selector select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

/* Results Panel */
.results-panel {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    width: 100%;
    max-width: 700px;
}

.result-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.result-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 0;
}

/* GPA Display */
.gpa-display {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.gpa-value {
    font-size: 4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.gpa-label {
    font-size: 1.5rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    display: inline-block;
}

/* GPA Categories */
.gpa-label.excellent {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.gpa-label.good {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
}

.gpa-label.average {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

.gpa-label.below-average {
    background: linear-gradient(135deg, #fb923c, #f97316);
    color: white;
}

.gpa-label.poor {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

/* GPA Comparison */
.gpa-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--background-gray);
    border-radius: var(--border-radius);
}

.comparison-item {
    text-align: center;
}

.comparison-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

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

/* Academic Standing */
.academic-standing {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(220, 38, 38, 0.05));
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--primary-coral);
}

.academic-standing h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.academic-standing p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

.standing-excellent {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.05));
    border-left-color: #10b981;
}

.standing-good {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.05));
    border-left-color: #3b82f6;
}

.standing-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(217, 119, 6, 0.05));
    border-left-color: #f59e0b;
}

/* Result Details */
.result-details {
    background: var(--background-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
}

.result-details h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--text-secondary);
}

.detail-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .calculator-title {
        font-size: 2rem;
    }
    
    .calculator-subtitle {
        font-size: 1rem;
    }
    
    .course-row {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
    
    .remove-course {
        width: 100%;
        margin-top: var(--spacing-xs);
    }
    
    .gpa-value {
        font-size: 3rem;
    }
    
    .gpa-label {
        font-size: 1.2rem;
    }
    
    .comparison-value {
        font-size: 1.5rem;
    }
    
    .gpa-comparison {
        grid-template-columns: 1fr;
    }
}