/* Base Calculator Styles - Shared across all calculator tools */

:root {
    --calc-primary: #0d6efd;
    --calc-success: #198754;
    --calc-warning: #ffc107;
    --calc-danger: #dc3545;
    --calc-border: #dee2e6;
    --calc-bg-light: #f8f9fa;
    --calc-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --calc-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Calculator Container */
.calculator-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Calculator Card */
.calculator-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--calc-shadow-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* Calculator Header */
.calculator-header {
    border-bottom: 2px solid var(--calc-border);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.calculator-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 0.5rem;
}

.calculator-subtitle {
    font-size: 1rem;
    color: #6c757d;
    margin-bottom: 0;
}

/* Section Headers */
.calculator-section {
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--calc-border);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #495057;
    margin: 0;
}

.section-icon {
    width: 24px;
    height: 24px;
    color: var(--calc-primary);
}

/* Button Group */
.calculator-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.btn-calculator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-calculator svg {
    width: 18px;
    height: 18px;
}

.btn-calculator:hover {
    transform: translateY(-1px);
    box-shadow: var(--calc-shadow);
}

/* Results Section */
.calculator-results {
    background: var(--calc-bg-light);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-top: 2rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.result-item {
    background: white;
    padding: 1rem;
    border-radius: 0.375rem;
    border: 1px solid var(--calc-border);
}

.result-label {
    font-size: 0.875rem;
    color: #6c757d;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #212529;
}

.result-value.primary {
    color: var(--calc-primary);
}

.result-value.success {
    color: var(--calc-success);
}

.result-sublabel {
    font-size: 0.75rem;
    color: #868e96;
    margin-top: 0.25rem;
}

/* Info Box */
.calculator-info {
    background: #e7f3ff;
    border-left: 4px solid var(--calc-primary);
    padding: 1rem;
    border-radius: 0.25rem;
    margin-bottom: 1.5rem;
}

.calculator-warning {
    background: #fff3cd;
    border-left: 4px solid var(--calc-warning);
    padding: 1rem;
    border-radius: 0.25rem;
    margin-bottom: 1.5rem;
}

/* Warning Feedback */
.is-warning {
    border-color: var(--calc-warning) !important;
}

.warning-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
}

/* Loading State */
.calculator-loading {
    display: none;
    text-align: center;
    padding: 2rem;
}

.calculator-loading.active {
    display: block;
}

/* Empty State */
.calculator-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.calculator-empty svg {
    width: 64px;
    height: 64px;
    opacity: 0.3;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .calculator-card {
        padding: 1.25rem;
    }

    .calculator-title {
        font-size: 1.5rem;
    }

    .calculator-actions {
        flex-direction: column;
    }

    .btn-calculator {
        width: 100%;
        justify-content: center;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .calculator-actions,
    .calculator-info,
    .calculator-warning,
    .no-print {
        display: none !important;
    }

    .calculator-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Accessibility */
.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Focus Styles */
.calculator-card input:focus,
.calculator-card select:focus,
.calculator-card button:focus {
    outline: 2px solid var(--calc-primary);
    outline-offset: 2px;
}