/**
 * Option Profit/Loss Calculator Styles
 *
 * Blue color scheme per CLAUDE.md guidelines:
 * - Primary: #2563eb
 * - Dark: #1e40af
 * - NO purple
 */

/* CSS Variables */
:root {
    --opc-primary: #2563eb;
    --opc-primary-dark: #1e40af;
    --opc-primary-light: #3b82f6;
    --opc-success: #10b981;
    --opc-warning: #f59e0b;
    --opc-danger: #ef4444;
    --opc-gray-100: #f3f4f6;
    --opc-gray-200: #e5e7eb;
    --opc-gray-300: #d1d5db;
    --opc-gray-500: #6b7280;
    --opc-gray-600: #4b5563;
    --opc-gray-800: #1f2937;

    /* Chart line colors (NO purple!) */
    --opc-line-expiration: #2563eb;
    --opc-line-today: #1e40af;
    --opc-line-mid1: #10b981;
    --opc-line-mid2: #f59e0b;
}

/* Hero Section */
.option-pl-calculator .hero-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    position: relative;
    overflow: hidden;
}

.option-pl-calculator .hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    pointer-events: none;
}

.option-pl-calculator .hero-section h1 {
    color: #ffffff;
    font-weight: 700;
    font-size: 2.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.option-pl-calculator .hero-section .lead {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.15rem;
    position: relative;
    z-index: 1;
}

.option-pl-calculator .hero-section .text-white-50 {
    position: relative;
    z-index: 1;
}

/* Breadcrumb */
.option-pl-calculator .breadcrumb {
    background-color: transparent;
    padding: 0;
    margin-bottom: 0;
}

.option-pl-calculator .breadcrumb-item a {
    color: var(--opc-primary);
    text-decoration: none;
}

.option-pl-calculator .breadcrumb-item a:hover {
    text-decoration: underline;
}

/* Cards */
.option-pl-calculator .card {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.option-pl-calculator .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12), 0 4px 10px rgba(0, 0, 0, 0.08);
}

.option-pl-calculator .card-header {
    background-color: #f8f9fa;
    border-bottom: 3px solid var(--opc-primary);
    padding: 1rem 1.25rem;
    border-radius: 0.5rem 0.5rem 0 0 !important;
}

.option-pl-calculator .card-header h2,
.option-pl-calculator .card-header h3 {
    color: var(--opc-gray-800);
    font-weight: 600;
    margin-bottom: 0;
}

.option-pl-calculator .card-body {
    padding: 1.5rem;
}

/* Form Elements */
.option-pl-calculator .form-label {
    font-weight: 600;
    color: var(--opc-gray-800);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.option-pl-calculator .form-control,
.option-pl-calculator .form-select {
    transition: all 0.25s ease;
    border: 2px solid #e5e7eb;
}

.option-pl-calculator .form-control:hover,
.option-pl-calculator .form-select:hover {
    border-color: var(--opc-primary-light);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.option-pl-calculator .form-control:focus,
.option-pl-calculator .form-select:focus {
    border-color: var(--opc-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15), 0 4px 12px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

/* Input Groups */
.option-pl-calculator .input-group-text {
    transition: all 0.25s ease;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #e5e7eb;
}

.option-pl-calculator .input-group:focus-within .input-group-text {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);
    color: var(--opc-primary);
    border-color: var(--opc-primary);
}

/* Global Settings Section */
.option-pl-calculator .global-settings {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(37, 99, 235, 0.08) 100%);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.option-pl-calculator .global-settings .form-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--opc-gray-600);
}

/* Position Buttons */
.option-pl-calculator .position-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.option-pl-calculator .btn-add-option,
.option-pl-calculator .btn-add-stock {
    flex: 1;
    min-width: 140px;
    padding: 0.625rem 1rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.option-pl-calculator .btn-add-option {
    background: linear-gradient(135deg, var(--opc-primary) 0%, var(--opc-primary-dark) 100%);
    border: none;
    color: white;
}

.option-pl-calculator .btn-add-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    color: white;
}

.option-pl-calculator .btn-add-stock {
    background: linear-gradient(135deg, var(--opc-gray-600) 0%, var(--opc-gray-800) 100%);
    border: none;
    color: white;
}

.option-pl-calculator .btn-add-stock:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(75, 85, 99, 0.4);
    color: white;
}

.option-pl-calculator .btn-add-stock:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Legs Container */
.option-pl-calculator .legs-container {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.option-pl-calculator .legs-container::-webkit-scrollbar {
    width: 6px;
}

.option-pl-calculator .legs-container::-webkit-scrollbar-track {
    background: var(--opc-gray-100);
    border-radius: 3px;
}

.option-pl-calculator .legs-container::-webkit-scrollbar-thumb {
    background: var(--opc-gray-300);
    border-radius: 3px;
}

.option-pl-calculator .legs-container::-webkit-scrollbar-thumb:hover {
    background: var(--opc-gray-500);
}

/* Leg Cards */
.option-pl-calculator .leg-card {
    background: white;
    border: 2px solid var(--opc-gray-200);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    position: relative;
    transition: all 0.3s ease;
}

.option-pl-calculator .leg-card:hover {
    border-color: var(--opc-primary-light);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.option-pl-calculator .leg-card.call-leg {
    border-left: 4px solid var(--opc-success);
}

.option-pl-calculator .leg-card.put-leg {
    border-left: 4px solid var(--opc-danger);
}

.option-pl-calculator .leg-card.stock-position {
    border-left: 4px solid var(--opc-primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(37, 99, 235, 0.05) 100%);
}

/* Leg Header */
.option-pl-calculator .leg-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--opc-gray-200);
}

.option-pl-calculator .leg-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--opc-gray-800);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.option-pl-calculator .leg-type-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 0.25rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.option-pl-calculator .leg-type-badge.call {
    background: rgba(16, 185, 129, 0.15);
    color: var(--opc-success);
}

.option-pl-calculator .leg-type-badge.put {
    background: rgba(239, 68, 68, 0.15);
    color: var(--opc-danger);
}

.option-pl-calculator .leg-type-badge.stock {
    background: rgba(37, 99, 235, 0.15);
    color: var(--opc-primary);
}

/* Remove Leg Button (class matches PHP template) */
.option-pl-calculator .remove-leg-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: 50%;
    border: none;
    background: var(--opc-gray-200);
    color: var(--opc-gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 1rem;
    line-height: 1;
}

.option-pl-calculator .remove-leg-btn:hover {
    background: var(--opc-danger);
    color: white;
    transform: scale(1.1);
}

/* Leg Form Grid */
.option-pl-calculator .leg-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.75rem;
}

.option-pl-calculator .leg-form .form-group {
    margin-bottom: 0;
}

.option-pl-calculator .leg-form .form-label {
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.option-pl-calculator .leg-form .form-control,
.option-pl-calculator .leg-form .form-select {
    font-size: 0.875rem;
    padding: 0.375rem 0.5rem;
}

/* Direction Toggle */
.option-pl-calculator .direction-toggle {
    display: flex;
    border-radius: 0.375rem;
    overflow: hidden;
    border: 2px solid var(--opc-gray-200);
}

.option-pl-calculator .direction-toggle .btn {
    flex: 1;
    padding: 0.375rem 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    border: none;
    border-radius: 0;
    transition: all 0.2s ease;
}

.option-pl-calculator .direction-toggle .btn-long {
    background: transparent;
    color: var(--opc-gray-600);
}

.option-pl-calculator .direction-toggle .btn-long.active {
    background: var(--opc-success);
    color: white;
}

.option-pl-calculator .direction-toggle .btn-short {
    background: transparent;
    color: var(--opc-gray-600);
}

.option-pl-calculator .direction-toggle .btn-short.active {
    background: var(--opc-danger);
    color: white;
}

/* Empty State */
.option-pl-calculator .empty-legs {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--opc-gray-500);
    background: var(--opc-gray-100);
    border-radius: 0.5rem;
    border: 2px dashed var(--opc-gray-300);
}

.option-pl-calculator .empty-legs i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--opc-gray-300);
}

.option-pl-calculator .empty-legs p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Preset Buttons Section */
.option-pl-calculator .preset-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--opc-gray-200);
}

.option-pl-calculator .preset-section h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--opc-gray-800);
    margin-bottom: 1rem;
}

.option-pl-calculator .preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.5rem;
}

.option-pl-calculator .btn-preset {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 2px solid var(--opc-gray-200);
    background: white;
    color: var(--opc-gray-600);
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    text-align: center;
    white-space: nowrap;
}

.option-pl-calculator .btn-preset:hover {
    border-color: var(--opc-primary);
    background: rgba(37, 99, 235, 0.05);
    color: var(--opc-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.option-pl-calculator .btn-preset:active {
    transform: translateY(0);
}

/* Chart Settings */
.option-pl-calculator .chart-settings {
    background: var(--opc-gray-100);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.option-pl-calculator .chart-settings .row {
    --bs-gutter-x: 1rem;
    --bs-gutter-y: 0.75rem;
}

.option-pl-calculator .chart-settings .form-label {
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.option-pl-calculator .chart-settings .form-control {
    font-size: 0.875rem;
}

/* Date Curves Checkboxes */
.option-pl-calculator .date-curves-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.option-pl-calculator .date-curve-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.option-pl-calculator .date-curve-checkbox .form-check-input {
    width: 1rem;
    height: 1rem;
}

.option-pl-calculator .date-curve-checkbox .form-check-label {
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.option-pl-calculator .color-indicator {
    width: 12px;
    height: 3px;
    border-radius: 2px;
    display: inline-block;
}

/* Curve Dot - Small circular color indicator for date curves */
.option-pl-calculator .curve-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
    vertical-align: middle;
    flex-shrink: 0;
}

.option-pl-calculator .color-indicator.expiration {
    background: var(--opc-line-expiration);
}

.option-pl-calculator .color-indicator.today {
    background: var(--opc-line-today);
    background-image: repeating-linear-gradient(
        90deg,
        var(--opc-line-today) 0px,
        var(--opc-line-today) 4px,
        transparent 4px,
        transparent 8px
    );
}

.option-pl-calculator .color-indicator.mid1 {
    background: var(--opc-line-mid1);
}

.option-pl-calculator .color-indicator.mid2 {
    background: var(--opc-line-mid2);
}

/* Chart Container */
.option-pl-calculator .chart-container {
    position: relative;
    height: 400px;
    width: 100%;
    background: white;
    border-radius: 0.5rem;
    padding: 1rem;
}

.option-pl-calculator .chart-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--opc-gray-500);
    background: var(--opc-gray-100);
    border-radius: 0.5rem;
    border: 2px dashed var(--opc-gray-300);
}

.option-pl-calculator .chart-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--opc-gray-300);
}

.option-pl-calculator .chart-placeholder p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Loading Spinner for Chart */
.option-pl-calculator .chart-loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.option-pl-calculator .chart-loading.active {
    display: block;
}

.option-pl-calculator .chart-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--opc-gray-200);
    border-top: 3px solid var(--opc-primary);
    border-radius: 50%;
    animation: opc-spin 0.8s linear infinite;
    margin: 0 auto 0.5rem;
}

.option-pl-calculator .chart-loading-text {
    font-size: 0.8rem;
    color: var(--opc-gray-600);
    font-weight: 500;
}

@keyframes opc-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Key Metrics */
.option-pl-calculator .metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.option-pl-calculator .metric-card {
    background: var(--opc-gray-100);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

.option-pl-calculator .metric-card:hover {
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.option-pl-calculator .metric-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--opc-gray-600);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.option-pl-calculator .metric-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--opc-gray-800);
}

.option-pl-calculator .metric-value.positive {
    color: var(--opc-success);
}

.option-pl-calculator .metric-value.negative {
    color: var(--opc-danger);
}

.option-pl-calculator .metric-value.unlimited {
    color: var(--opc-warning);
    font-size: 0.9rem;
}

/* Position Summary Table */
.option-pl-calculator .position-summary-table {
    font-size: 0.85rem;
}

.option-pl-calculator .position-summary-table thead th {
    background: var(--opc-gray-800);
    color: white;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 0.5rem;
    border: none;
}

.option-pl-calculator .position-summary-table tbody td {
    padding: 0.625rem 0.5rem;
    vertical-align: middle;
    border-color: var(--opc-gray-200);
}

.option-pl-calculator .position-summary-table tbody tr:hover {
    background: rgba(37, 99, 235, 0.03);
}

.option-pl-calculator .position-summary-table .text-success {
    color: var(--opc-success) !important;
}

.option-pl-calculator .position-summary-table .text-danger {
    color: var(--opc-danger) !important;
}

/* Educational Content */
.option-pl-calculator .educational-section {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(37, 99, 235, 0.08) 100%);
    border-radius: 0.5rem;
    padding: 2rem;
    margin-top: 2rem;
}

.option-pl-calculator .educational-section h2 {
    color: var(--opc-gray-800);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.option-pl-calculator .educational-section h3 {
    color: var(--opc-primary-dark);
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.option-pl-calculator .educational-section p {
    color: var(--opc-gray-600);
    line-height: 1.7;
}

.option-pl-calculator .educational-section ul {
    color: var(--opc-gray-600);
    padding-left: 1.5rem;
}

.option-pl-calculator .educational-section li {
    margin-bottom: 0.5rem;
}

/* Disclaimer */
.option-pl-calculator .disclaimer {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--opc-warning);
    border-radius: 0.375rem;
    padding: 1rem 1.25rem;
    margin-top: 2rem;
}

.option-pl-calculator .disclaimer p {
    margin-bottom: 0;
    font-size: 0.85rem;
    color: var(--opc-gray-600);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.option-pl-calculator .leg-card {
    animation: slideInRight 0.3s ease-out;
}

.option-pl-calculator .metric-card {
    animation: fadeIn 0.4s ease-out;
}

/* ===========================
   RESPONSIVE STYLES
   =========================== */

/* Tablet (768px - 992px) */
@media (max-width: 991.98px) {
    .option-pl-calculator .hero-section {
        padding: 50px 0;
    }

    .option-pl-calculator .hero-section h1 {
        font-size: 2rem;
    }

    .option-pl-calculator .chart-container {
        height: 350px;
    }

    .option-pl-calculator .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (< 768px) */
@media (max-width: 767.98px) {
    .option-pl-calculator .hero-section {
        padding: 40px 0;
    }

    .option-pl-calculator .hero-section h1 {
        font-size: 1.75rem;
    }

    .option-pl-calculator .hero-section .lead {
        font-size: 1rem;
    }

    .option-pl-calculator .card-body {
        padding: 1rem;
    }

    .option-pl-calculator .position-actions {
        flex-direction: column;
    }

    .option-pl-calculator .btn-add-option,
    .option-pl-calculator .btn-add-stock {
        width: 100%;
    }

    .option-pl-calculator .leg-form {
        grid-template-columns: repeat(2, 1fr);
    }

    .option-pl-calculator .preset-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .option-pl-calculator .chart-container {
        height: 300px;
    }

    .option-pl-calculator .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .option-pl-calculator .metric-card {
        padding: 0.75rem;
    }

    .option-pl-calculator .metric-value {
        font-size: 1rem;
    }

    .option-pl-calculator .date-curves-group {
        flex-direction: column;
        gap: 0.5rem;
    }

    /* Touch-friendly targets */
    .option-pl-calculator .btn {
        min-height: 44px;
    }

    .option-pl-calculator .form-control,
    .option-pl-calculator .form-select {
        min-height: 44px;
    }

    .option-pl-calculator .legs-container {
        max-height: 400px;
    }
}

/* Small Mobile (< 576px) */
@media (max-width: 575.98px) {
    .option-pl-calculator .hero-section h1 {
        font-size: 1.5rem;
    }

    .option-pl-calculator .leg-form {
        grid-template-columns: 1fr;
    }

    .option-pl-calculator .metrics-grid {
        grid-template-columns: 1fr;
    }

    .option-pl-calculator .preset-grid {
        grid-template-columns: 1fr;
    }

    .option-pl-calculator .chart-container {
        height: 250px;
    }

    .option-pl-calculator .global-settings .row > div {
        margin-bottom: 0.75rem;
    }

    .option-pl-calculator .educational-section {
        padding: 1.5rem 1rem;
    }
}

/* Print Styles */
@media print {
    .option-pl-calculator .hero-section {
        background: #2563eb !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .option-pl-calculator .btn,
    .option-pl-calculator .preset-section {
        display: none !important;
    }

    .option-pl-calculator .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #dee2e6;
    }

    .option-pl-calculator .chart-container {
        height: auto;
        min-height: 300px;
    }
}

/* Accessibility: Focus States */
.option-pl-calculator .btn:focus,
.option-pl-calculator .form-control:focus,
.option-pl-calculator .form-select:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.option-pl-calculator .btn:focus-visible,
.option-pl-calculator .form-control:focus-visible,
.option-pl-calculator .form-select:focus-visible {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.5);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .option-pl-calculator .leg-card {
        border-width: 3px;
    }

    .option-pl-calculator .btn {
        border-width: 2px;
    }

    .option-pl-calculator .metric-value {
        font-weight: 800;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .option-pl-calculator .card,
    .option-pl-calculator .btn,
    .option-pl-calculator .form-control,
    .option-pl-calculator .leg-card,
    .option-pl-calculator .metric-card {
        transition: none;
    }

    .option-pl-calculator .leg-card {
        animation: none;
    }

    .option-pl-calculator .chart-spinner {
        animation: none;
    }
}

/* ===========================
   TOAST NOTIFICATIONS
   =========================== */

.opc-toast {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 10000;
    min-width: 280px;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--opc-primary) 0%, var(--opc-primary-dark) 100%);
    color: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.4), 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.opc-toast.show {
    transform: translateX(0);
}

.opc-toast.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 10px 40px rgba(16, 185, 129, 0.4), 0 4px 15px rgba(0, 0, 0, 0.1);
}

.opc-toast.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.4), 0 4px 15px rgba(0, 0, 0, 0.1);
}

.opc-toast i {
    font-size: 1.25rem;
}

.opc-toast-message {
    font-weight: 500;
    font-size: 0.95rem;
}

/* ===========================
   RELATED CALCULATORS CARDS
   =========================== */

.related-calc-card {
    display: block;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 25px 20px;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: all 0.3s ease;
    text-align: center;
}

.related-calc-card:hover {
    border-color: var(--opc-primary);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
    transform: translateY(-4px);
    text-decoration: none;
    color: inherit;
}

.related-calc-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, var(--opc-primary) 0%, var(--opc-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.related-calc-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1e293b;
}

.related-calc-desc {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 15px;
    flex-grow: 1;
}

.related-calc-cta {
    display: inline-block;
    background: var(--opc-primary);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: background 0.3s ease;
}

.related-calc-card:hover .related-calc-cta {
    background: var(--opc-primary-dark);
}

/* Featured Image in Related Cards */
.related-calc-image {
    width: 100%;
    margin-bottom: 15px;
    overflow: hidden;
    border-radius: 8px;
}

.related-calc-image img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.related-calc-card:hover .related-calc-image img {
    transform: scale(1.05);
}