/**
 * Yield Curve Analyzer Styles
 *
 * Blue color scheme (#2563eb primary, #1e40af dark) - NO purple
 * Based on bond-duration-calculator.css patterns
 *
 * @package Ryan_OConnell_Theme
 * @since 1.0.0
 */

/* ===========================
   CSS VARIABLES
   =========================== */

:root {
    --yca-primary: #2563eb;
    --yca-primary-dark: #1e40af;
    --yca-primary-light: #3b82f6;
    --yca-primary-rgb: 37, 99, 235;
    --yca-success: #10b981;
    --yca-success-rgb: 16, 185, 129;
    --yca-warning: #f59e0b;
    --yca-warning-rgb: 245, 158, 11;
    --yca-danger: #ef4444;
    --yca-danger-rgb: 239, 68, 68;
    --yca-gray-50: #f9fafb;
    --yca-gray-100: #f3f4f6;
    --yca-gray-200: #e5e7eb;
    --yca-gray-300: #d1d5db;
    --yca-gray-400: #9ca3af;
    --yca-gray-500: #6b7280;
    --yca-gray-600: #4b5563;
    --yca-gray-700: #374151;
    --yca-gray-800: #1f2937;
    --yca-gray-900: #111827;
    --yca-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --yca-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --yca-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --yca-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --yca-transition: all 0.3s ease;
}

/* ===========================
   CONTAINER & LAYOUT
   =========================== */

.yield-curve-analyzer {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--yca-gray-800);
    line-height: 1.6;
}

/* ===========================
   HERO SECTION
   =========================== */

.yield-curve-analyzer .yca-hero {
    background: linear-gradient(135deg, var(--yca-primary) 0%, var(--yca-primary-dark) 100%);
    padding: 60px 0;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.yield-curve-analyzer .yca-hero::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");
    opacity: 0.5;
}

.yield-curve-analyzer .yca-hero h1 {
    color: white;
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.yield-curve-analyzer .yca-hero .lead {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.yield-curve-analyzer .yca-hero .text-white-50 {
    color: rgba(255, 255, 255, 0.7) !important;
    position: relative;
    z-index: 1;
}

/* ===========================
   BREADCRUMB
   =========================== */

.yield-curve-analyzer .breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 0;
    font-size: 0.875rem;
}

.yield-curve-analyzer .breadcrumb-item a {
    color: var(--yca-primary);
    text-decoration: none;
    transition: var(--yca-transition);
}

.yield-curve-analyzer .breadcrumb-item a:hover {
    color: var(--yca-primary-dark);
    text-decoration: underline;
}

.yield-curve-analyzer .breadcrumb-item.active {
    color: var(--yca-gray-500);
}

/* ===========================
   LOADING OVERLAY
   =========================== */

.yield-curve-analyzer .yca-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
    /* Hidden by default - JS shows it when loading */
    opacity: 0;
    pointer-events: none;
}

.yield-curve-analyzer .yca-loading-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.yield-curve-analyzer .yca-loading-overlay p {
    color: var(--yca-gray-600);
    font-weight: 500;
}

/* ===========================
   CARDS
   =========================== */

.yield-curve-analyzer .yca-card {
    border: 1px solid var(--yca-gray-200);
    border-radius: 0.75rem;
    box-shadow: var(--yca-shadow);
    transition: var(--yca-transition);
    background: white;
    overflow: hidden;
}

.yield-curve-analyzer .yca-card:hover {
    box-shadow: var(--yca-shadow-md);
}

.yield-curve-analyzer .yca-card .card-header {
    background: var(--yca-gray-50);
    border-bottom: 1px solid var(--yca-gray-200);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.yield-curve-analyzer .yca-card .card-header h2,
.yield-curve-analyzer .yca-card .card-header h3 {
    margin: 0;
    color: var(--yca-gray-800);
}

.yield-curve-analyzer .yca-card .card-header .badge {
    font-size: 0.75rem;
    font-weight: 500;
}

.yield-curve-analyzer .yca-card .card-body {
    padding: 1.25rem;
}

/* ===========================
   CHART CONTAINER
   =========================== */

.yield-curve-analyzer .yca-chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.yield-curve-analyzer .yca-chart-container canvas {
    max-width: 100%;
}

/* Historical toggle switch */
.yield-curve-analyzer .form-check-input:checked {
    background-color: var(--yca-primary);
    border-color: var(--yca-primary);
}

.yield-curve-analyzer .form-check-input:focus {
    border-color: var(--yca-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--yca-primary-rgb), 0.25);
}

/* ===========================
   METRIC BOXES
   =========================== */

.yield-curve-analyzer .yca-metric-box {
    background: var(--yca-gray-50);
    border-radius: 0.5rem;
    padding: 1rem;
    text-align: center;
    transition: var(--yca-transition);
    border: 1px solid var(--yca-gray-200);
}

.yield-curve-analyzer .yca-metric-box:hover {
    background: white;
    box-shadow: var(--yca-shadow);
    transform: translateY(-2px);
}

.yield-curve-analyzer .yca-metric-box small {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--yca-gray-500);
}

.yield-curve-analyzer .yca-spread-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.25rem;
    font-family: 'SF Mono', 'Consolas', monospace;
}

.yield-curve-analyzer .yca-metric-unit {
    font-size: 0.875rem;
    color: var(--yca-gray-500);
    font-weight: 400;
}

/* Spread value colors */
.yield-curve-analyzer .yca-spread-value.positive {
    color: var(--yca-success);
}

.yield-curve-analyzer .yca-spread-value.negative {
    color: var(--yca-danger);
}

.yield-curve-analyzer .yca-spread-value.neutral {
    color: var(--yca-warning);
}

/* Curve status text */
.yield-curve-analyzer .yca-status-text {
    font-size: 1rem;
    font-weight: 600;
}

.yield-curve-analyzer .yca-status-text.normal {
    color: var(--yca-success);
}

.yield-curve-analyzer .yca-status-text.flat {
    color: var(--yca-warning);
}

.yield-curve-analyzer .yca-status-text.inverted {
    color: var(--yca-danger);
}

/* ===========================
   CURVE SHAPE BADGE
   =========================== */

.yield-curve-analyzer .yca-curve-badge-container {
    display: inline-block;
}

.yield-curve-analyzer .yca-curve-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 1.125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.yield-curve-analyzer .yca-curve-badge.normal {
    background: rgba(var(--yca-success-rgb), 0.15);
    color: var(--yca-success);
    border: 2px solid var(--yca-success);
}

.yield-curve-analyzer .yca-curve-badge.flat {
    background: rgba(var(--yca-warning-rgb), 0.15);
    color: #d97706;
    border: 2px solid var(--yca-warning);
}

.yield-curve-analyzer .yca-curve-badge.inverted {
    background: rgba(var(--yca-danger-rgb), 0.15);
    color: var(--yca-danger);
    border: 2px solid var(--yca-danger);
}

/* ===========================
   RECESSION PROBABILITY
   =========================== */

.yield-curve-analyzer .yca-probability-card {
    border: 2px solid rgba(var(--yca-primary-rgb), 0.2);
    background: linear-gradient(135deg, rgba(var(--yca-primary-rgb), 0.03) 0%, white 100%);
}

.yield-curve-analyzer .yca-probability-display {
    position: relative;
    display: inline-block;
}

.yield-curve-analyzer .yca-probability-value {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    font-family: 'SF Mono', 'Consolas', monospace;
    color: var(--yca-gray-800);
}

.yield-curve-analyzer .yca-probability-symbol {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--yca-gray-500);
    vertical-align: super;
}

/* Probability value colors based on level */
.yield-curve-analyzer .yca-probability-value.low {
    color: var(--yca-success);
}

.yield-curve-analyzer .yca-probability-value.medium {
    color: var(--yca-warning);
}

.yield-curve-analyzer .yca-probability-value.high {
    color: var(--yca-danger);
}

/* Probability gauge */
.yield-curve-analyzer .yca-probability-gauge {
    width: 100%;
}

.yield-curve-analyzer .yca-gauge-track {
    height: 12px;
    background: var(--yca-gray-200);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.yield-curve-analyzer .yca-gauge-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.8s ease-out, background-color 0.3s ease;
    background: linear-gradient(90deg, var(--yca-success) 0%, var(--yca-warning) 50%, var(--yca-danger) 100%);
}

.yield-curve-analyzer .yca-gauge-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 0.375rem;
    font-size: 0.7rem;
    color: var(--yca-gray-400);
}

/* ===========================
   CITATION / METHODOLOGY
   =========================== */

.yield-curve-analyzer .yca-citation {
    background: var(--yca-gray-50);
    border: 1px solid var(--yca-gray-200);
    border-radius: 0.5rem;
    padding: 0.875rem 1rem;
    font-size: 0.8125rem;
    color: var(--yca-gray-600);
}

.yield-curve-analyzer .yca-citation a {
    color: var(--yca-primary);
    text-decoration: none;
}

.yield-curve-analyzer .yca-citation a:hover {
    text-decoration: underline;
}

/* ===========================
   RATES TABLE
   =========================== */

.yield-curve-analyzer .yca-rates-table {
    margin-bottom: 0;
}

.yield-curve-analyzer .yca-rates-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
    background: white;
}

.yield-curve-analyzer .yca-rates-table th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--yca-gray-600);
    border-bottom: 2px solid var(--yca-gray-200);
    padding: 0.75rem 1rem;
    white-space: nowrap;
}

.yield-curve-analyzer .yca-rates-table td {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--yca-gray-100);
    vertical-align: middle;
}

.yield-curve-analyzer .yca-rates-table tbody tr:hover {
    background: var(--yca-gray-50);
}

.yield-curve-analyzer .yca-rates-table tbody tr:last-child td {
    border-bottom: none;
}

/* Highlight 10Y and 3M rows */
.yield-curve-analyzer .yca-rates-table tr.highlight {
    background: rgba(var(--yca-primary-rgb), 0.05);
}

.yield-curve-analyzer .yca-rates-table tr.highlight td {
    font-weight: 600;
}

/* ===========================
   EDUCATIONAL CONTENT
   =========================== */

.yield-curve-analyzer .yca-educational-content {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--yca-gray-200);
}

.yield-curve-analyzer .yca-educational-content h2 {
    color: var(--yca-gray-800);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.yield-curve-analyzer .yca-educational-content h3 {
    color: var(--yca-gray-700);
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.yield-curve-analyzer .yca-educational-content p {
    color: var(--yca-gray-600);
    line-height: 1.7;
}

.yield-curve-analyzer .yca-educational-content ul,
.yield-curve-analyzer .yca-educational-content ol {
    color: var(--yca-gray-600);
    padding-left: 1.5rem;
}

.yield-curve-analyzer .yca-educational-content li {
    margin-bottom: 0.5rem;
}

.yield-curve-analyzer .yca-educational-content code {
    background: var(--yca-gray-100);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    color: var(--yca-primary-dark);
}

/* ===========================
   FAQ ACCORDION
   =========================== */

.yield-curve-analyzer .yca-faq-section {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--yca-gray-200);
}

.yield-curve-analyzer .yca-accordion .accordion-item {
    background: white;
    border: 1px solid var(--yca-gray-200);
    border-radius: 0.75rem;
    overflow: hidden;
    margin-bottom: 0.75rem;
    transition: var(--yca-transition);
}

.yield-curve-analyzer .yca-accordion .accordion-item:last-child {
    margin-bottom: 0;
}

.yield-curve-analyzer .yca-accordion .accordion-item:hover {
    border-color: var(--yca-gray-300);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.yield-curve-analyzer .yca-accordion .accordion-button {
    background: white;
    color: var(--yca-gray-700);
    font-weight: 600;
    font-size: 1rem;
    padding: 1.25rem 1.5rem;
    border: none;
    box-shadow: none;
}

.yield-curve-analyzer .yca-accordion .accordion-button:not(.collapsed) {
    background: white;
    color: var(--yca-primary);
    box-shadow: none;
}

.yield-curve-analyzer .yca-accordion .accordion-button:hover {
    background: var(--yca-gray-50);
}

.yield-curve-analyzer .yca-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.yield-curve-analyzer .yca-accordion .accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236b7280'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    width: 1rem;
    height: 1rem;
    transition: transform 0.3s ease;
}

.yield-curve-analyzer .yca-accordion .accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563eb'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transform: rotate(-180deg);
}

.yield-curve-analyzer .yca-accordion .accordion-body {
    padding: 0 1.5rem 1.5rem 1.5rem;
    color: var(--yca-gray-600);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.yield-curve-analyzer .yca-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
    border-color: var(--yca-primary);
    box-shadow: 0 0 0 1px var(--yca-primary), 0 4px 12px rgba(37, 99, 235, 0.1);
}

/* ===========================
   DISCLAIMER
   =========================== */

.yield-curve-analyzer .yca-disclaimer .alert-warning {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 0.75rem;
}

.yield-curve-analyzer .yca-disclaimer .alert-heading {
    color: #92400e;
    font-weight: 600;
}

.yield-curve-analyzer .yca-disclaimer p {
    color: #78350f;
    font-size: 0.875rem;
}

/* ===========================
   RELATED TOOLS
   =========================== */

.yield-curve-analyzer .yca-related-tools h2 {
    color: var(--yca-gray-800);
    font-weight: 700;
}

.yield-curve-analyzer .yca-related-card {
    border: 2px solid var(--yca-gray-200);
    border-radius: 0.75rem;
    transition: var(--yca-transition);
    background: white;
}

.yield-curve-analyzer .yca-related-card:hover {
    border-color: var(--yca-primary);
    box-shadow: var(--yca-shadow-md);
    transform: translateY(-4px);
}

.yield-curve-analyzer .yca-tool-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--yca-primary) 0%, var(--yca-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.yield-curve-analyzer .yca-related-card h3 {
    color: var(--yca-gray-800);
    font-weight: 600;
}

.yield-curve-analyzer .yca-related-card .btn-outline-primary {
    border-color: var(--yca-primary);
    color: var(--yca-primary);
}

.yield-curve-analyzer .yca-related-card .btn-outline-primary:hover {
    background: var(--yca-primary);
    color: white;
}

/* ===========================
   ACCESSIBILITY
   =========================== */

.yield-curve-analyzer .visually-hidden {
    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;
}

.yield-curve-analyzer *:focus-visible {
    outline: 2px solid var(--yca-primary);
    outline-offset: 2px;
}

.yield-curve-analyzer .btn:focus-visible {
    box-shadow: 0 0 0 4px rgba(var(--yca-primary-rgb), 0.25);
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */

@media (max-width: 991.98px) {
    .yield-curve-analyzer .yca-hero {
        padding: 40px 0;
    }

    .yield-curve-analyzer .yca-hero h1 {
        font-size: 2rem;
    }

    .yield-curve-analyzer .yca-probability-value {
        font-size: 2.5rem;
    }

    .yield-curve-analyzer .yca-chart-container {
        height: 250px;
    }
}

@media (max-width: 767.98px) {
    .yield-curve-analyzer .yca-hero {
        padding: 30px 0;
    }

    .yield-curve-analyzer .yca-hero h1 {
        font-size: 1.75rem;
    }

    .yield-curve-analyzer .yca-hero .lead {
        font-size: 1rem;
    }

    .yield-curve-analyzer .yca-card .card-body {
        padding: 1rem;
    }

    .yield-curve-analyzer .yca-metric-box {
        padding: 0.75rem;
    }

    .yield-curve-analyzer .yca-spread-value {
        font-size: 1.25rem;
    }

    .yield-curve-analyzer .yca-probability-value {
        font-size: 2rem;
    }

    .yield-curve-analyzer .yca-probability-symbol {
        font-size: 1rem;
    }

    .yield-curve-analyzer .yca-chart-container {
        height: 220px;
    }

    .yield-curve-analyzer .yca-rates-table th,
    .yield-curve-analyzer .yca-rates-table td {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .yield-curve-analyzer .yca-educational-content,
    .yield-curve-analyzer .yca-faq-section {
        padding: 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .yield-curve-analyzer .yca-hero h1 {
        font-size: 1.5rem;
    }

    .yield-curve-analyzer .yca-curve-badge {
        font-size: 0.875rem;
        padding: 0.375rem 1rem;
    }

    .yield-curve-analyzer .yca-accordion .accordion-button {
        font-size: 0.9375rem;
        padding: 1rem 1.25rem;
    }

    .yield-curve-analyzer .yca-accordion .accordion-body {
        padding: 0 1.25rem 1.25rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* ===========================
   REDUCED MOTION
   =========================== */

@media (prefers-reduced-motion: reduce) {
    .yield-curve-analyzer,
    .yield-curve-analyzer * {
        transition: none !important;
        animation: none !important;
    }

    .yield-curve-analyzer .yca-gauge-fill {
        transition: none !important;
    }
}

/* ===========================
   PRINT STYLES
   =========================== */

@media print {
    .yield-curve-analyzer .yca-hero {
        background: none !important;
        color: black !important;
        padding: 1rem 0;
    }

    .yield-curve-analyzer .yca-hero h1,
    .yield-curve-analyzer .yca-hero .lead,
    .yield-curve-analyzer .yca-hero .text-white-50 {
        color: black !important;
    }

    .yield-curve-analyzer .yca-loading-overlay {
        display: none !important;
    }

    .yield-curve-analyzer .yca-card {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }

    .yield-curve-analyzer .form-switch,
    .yield-curve-analyzer #retry-btn {
        display: none !important;
    }

    .yield-curve-analyzer .yca-chart-container {
        height: auto !important;
        page-break-inside: avoid;
    }

    .yield-curve-analyzer .yca-probability-gauge {
        page-break-inside: avoid;
    }

    .yield-curve-analyzer .yca-accordion .accordion-collapse {
        display: block !important;
        height: auto !important;
    }
}