/**
 * Pension Alimentaire - Frontend Styles
 * Mobile-first, accessible, responsive
 */

/* Reset & Base */
.pa-calculator {
    --pa-color-primary: #1E3A5F;
    --pa-color-secondary: #2D5A8A;
    --pa-color-accent: #D4A853;
    --pa-color-background: #F8F6F3;
    --pa-color-text: #333333;
    --pa-color-border: #E0E0E0;
    --pa-color-success: #28A745;
    --pa-font-heading: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --pa-font-body: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --pa-font-size-base: 16px;
    --pa-scale-ratio: 1.25;
    --pa-max-width: 600px;
    --pa-padding: 24px;
    --pa-border-radius: 8px;
    --pa-field-height: 48px;
    --pa-focus-color: #1E3A5F;
    --pa-transition: 0.3s ease;
}

.pa-calculator *,
.pa-calculator *::before,
.pa-calculator *::after {
    box-sizing: border-box;
}

/* Reset pour isoler des styles Elementor/WordPress */
.pa-calculator button,
.pa-calculator input,
.pa-calculator select,
.pa-calculator textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    color: inherit;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.pa-calculator button {
    cursor: pointer;
    text-transform: none;
    letter-spacing: normal;
}

.pa-calculator {
    max-width: var(--pa-max-width);
    margin: 0 auto;
    padding: var(--pa-padding);
    background: var(--pa-color-background) !important;
    border-radius: var(--pa-border-radius);
    font-family: var(--pa-font-body);
    font-size: var(--pa-font-size-base);
    color: var(--pa-color-text);
    line-height: 1.5;
}

/* Progress Bar */
.pa-progress {
    margin-bottom: 32px;
}

.pa-progress-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    position: relative;
}

.pa-progress-steps::before {
    content: '';
    position: absolute;
    top: 16px;
    left: calc(12.5% + 16px);
    right: calc(12.5% + 16px);
    height: 2px;
    background: var(--pa-color-border);
    z-index: 0;
}

.pa-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    z-index: 1;
}

.pa-step-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 2px solid var(--pa-color-border);
    color: #999;
    border-radius: 50%;
    font-weight: 600;
    font-size: 14px;
    transition: all var(--pa-transition);
}

.pa-step.active .pa-step-number {
    background: var(--pa-color-primary);
    border-color: var(--pa-color-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.3);
}

.pa-step.completed .pa-step-number {
    background: var(--pa-color-success);
    border-color: var(--pa-color-success);
    color: white;
}

.pa-step.completed .pa-step-number span {
    display: none;
}

.pa-step.completed .pa-step-number::after {
    content: '✓';
}

.pa-step-label {
    font-size: 12px;
    color: #999;
    margin-top: 6px;
    text-align: center;
    font-weight: 500;
}

.pa-step.active .pa-step-label {
    color: var(--pa-color-primary);
}

.pa-step.completed .pa-step-label {
    color: var(--pa-color-success);
}

.pa-progress-bar {
    height: 4px;
    background: var(--pa-color-border);
    border-radius: 2px;
    overflow: hidden;
}

.pa-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--pa-color-primary), var(--pa-color-secondary));
    transition: width 0.4s ease-out;
}

/* Wizard Steps */
.pa-wizard-step {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.pa-wizard-step.active {
    display: block;
}

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

.pa-step-title {
    font-family: var(--pa-font-heading);
    font-size: calc(var(--pa-font-size-base) * var(--pa-scale-ratio));
    font-weight: 600;
    color: var(--pa-color-primary);
    margin: 0 0 24px;
}

/* Form Fields */
.pa-field-group {
    margin-bottom: 24px;
}

.pa-label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--pa-color-text);
}

.pa-label-hint {
    display: block;
    font-weight: 400;
    font-size: 14px;
    color: #666;
    margin-top: 2px;
}

/* Children Selector */
.pa-calculator .pa-children-selector {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.pa-calculator .pa-child-btn {
    width: 52px !important;
    height: 52px !important;
    min-width: 52px;
    min-height: 52px;
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: white !important;
    border: 2px solid var(--pa-color-border) !important;
    border-radius: 12px !important;
    font-size: 18px !important;
    font-weight: 600;
    color: var(--pa-color-text) !important;
    cursor: pointer;
    transition: all var(--pa-transition);
    padding: 0 !important;
    margin: 0 !important;
}

.pa-calculator .pa-child-btn:hover {
    border-color: var(--pa-color-primary) !important;
    background: rgba(30, 58, 95, 0.04) !important;
}

.pa-calculator .pa-child-btn:focus {
    outline: 2px solid var(--pa-focus-color);
    outline-offset: 2px;
}

.pa-calculator .pa-child-btn.active {
    background: linear-gradient(135deg, var(--pa-color-primary), var(--pa-color-secondary)) !important;
    border-color: transparent !important;
    color: white !important;
    box-shadow: 0 3px 10px rgba(30, 58, 95, 0.25);
    transform: scale(1.02);
}

/* Custody Cards */
.pa-calculator .pa-custody-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 576px) {
    .pa-calculator .pa-custody-cards {
        grid-template-columns: 1fr;
    }
}

.pa-calculator .pa-custody-card {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    padding: 20px 16px !important;
    background: white !important;
    border: 2px solid var(--pa-color-border) !important;
    border-radius: var(--pa-border-radius) !important;
    cursor: pointer;
    transition: all var(--pa-transition);
    text-align: center;
    margin: 0 !important;
    min-height: auto;
    color: var(--pa-color-text) !important;
}

.pa-calculator .pa-custody-card:hover {
    border-color: var(--pa-color-primary) !important;
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.12);
    transform: translateY(-3px);
    color: var(--pa-color-text) !important;
    background: white !important;
}

.pa-calculator .pa-custody-card:focus {
    outline: 2px solid var(--pa-focus-color);
    outline-offset: 2px;
}

.pa-calculator .pa-custody-card.active {
    background: linear-gradient(135deg, var(--pa-color-primary), var(--pa-color-secondary)) !important;
    border-color: transparent !important;
    color: white !important;
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.25);
}

.pa-calculator .pa-custody-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 10px;
    background: rgba(30, 58, 95, 0.08);
    border-radius: 12px;
    transition: all var(--pa-transition);
}

.pa-calculator .pa-custody-card.active .pa-custody-icon {
    background: rgba(255, 255, 255, 0.2);
}

.pa-calculator .pa-custody-title {
    font-weight: 600;
    font-size: 15px !important;
    margin-bottom: 2px;
}

.pa-calculator .pa-custody-desc {
    font-size: 12px !important;
    opacity: 0.7;
}

/* Range Input */
.pa-range-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pa-range {
    width: 100%;
    -webkit-appearance: none;
    height: 8px;
    background: #c5d0dc;
    border-radius: 4px;
    outline: none;
}

.pa-range::-webkit-slider-runnable-track {
    height: 8px;
    background: #c5d0dc;
    border-radius: 4px;
}

.pa-range::-moz-range-track {
    height: 8px;
    background: #c5d0dc;
    border-radius: 4px;
}

.pa-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--pa-color-primary), var(--pa-color-secondary));
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--pa-transition), box-shadow var(--pa-transition);
    box-shadow: 0 2px 6px rgba(30, 58, 95, 0.3);
}

.pa-range::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--pa-color-primary), var(--pa-color-secondary));
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(30, 58, 95, 0.3);
}

.pa-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.pa-range:focus::-webkit-slider-thumb {
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.2), 0 2px 6px rgba(30, 58, 95, 0.3);
}

.pa-range-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--pa-color-primary);
    text-align: right;
}

/* Text Inputs */
.pa-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.pa-input {
    width: 100%;
    height: var(--pa-field-height);
    padding: 12px 40px 12px 16px;
    background: white;
    border: 2px solid var(--pa-color-border);
    border-radius: var(--pa-border-radius);
    font-size: var(--pa-font-size-base);
    font-family: inherit;
    color: var(--pa-color-text);
    transition: all var(--pa-transition);
}

.pa-input:hover {
    border-color: var(--pa-color-secondary);
}

.pa-input:focus {
    outline: none;
    border-color: var(--pa-focus-color);
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.1);
}

.pa-input.error {
    border-color: #dc3545;
}

.pa-input-suffix {
    position: absolute;
    right: 16px;
    color: #666;
    font-weight: 500;
    pointer-events: none;
}

.pa-error {
    display: block;
    color: #dc3545;
    font-size: 14px;
    margin-top: 4px;
    min-height: 20px;
}

/* Number Input with +/- */
.pa-input-number {
    display: inline-flex;
    max-width: 150px;
}

.pa-input-number .pa-input {
    text-align: center;
    padding: 12px 8px;
    -moz-appearance: textfield;
}

.pa-input-number .pa-input::-webkit-outer-spin-button,
.pa-input-number .pa-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.pa-btn-minus,
.pa-btn-plus {
    width: 40px;
    height: var(--pa-field-height);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pa-color-primary);
    color: white;
    border: none;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: background var(--pa-transition);
}

.pa-btn-minus {
    border-radius: var(--pa-border-radius) 0 0 var(--pa-border-radius);
}

.pa-btn-plus {
    border-radius: 0 var(--pa-border-radius) var(--pa-border-radius) 0;
}

.pa-btn-minus:hover,
.pa-btn-plus:hover {
    background: var(--pa-color-secondary);
}

/* Accordion */
.pa-accordion {
    margin-bottom: 24px;
}

.pa-accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: white;
    border: 2px solid var(--pa-color-border);
    border-radius: var(--pa-border-radius);
    font-size: var(--pa-font-size-base);
    font-family: inherit;
    color: var(--pa-color-text);
    cursor: pointer;
    transition: all var(--pa-transition);
}

.pa-accordion-header:hover {
    border-color: var(--pa-color-primary);
}

.pa-accordion-icon {
    transition: transform var(--pa-transition);
}

.pa-accordion-header[aria-expanded="true"] .pa-accordion-icon {
    transform: rotate(90deg);
}

.pa-accordion-content {
    padding: 16px;
    background: white;
    border: 2px solid var(--pa-color-border);
    border-top: none;
    border-radius: 0 0 var(--pa-border-radius) var(--pa-border-radius);
}

/* Toggle Switch */
.pa-advanced-toggle {
    padding: 16px;
    background: rgba(30, 58, 95, 0.05);
    border-radius: var(--pa-border-radius);
    margin-top: 24px;
}

/* Advanced Fields */
.pa-advanced-fields {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px dashed var(--pa-color-border);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pa-toggle {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.pa-toggle input {
    position: absolute;
    opacity: 0;
}

.pa-toggle-slider {
    flex-shrink: 0;
    width: 48px;
    height: 24px;
    background: var(--pa-color-border);
    border-radius: 12px;
    position: relative;
    transition: background var(--pa-transition);
}

.pa-toggle-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--pa-transition);
}

.pa-toggle input:checked + .pa-toggle-slider {
    background: var(--pa-color-primary);
}

.pa-toggle input:checked + .pa-toggle-slider::before {
    transform: translateX(24px);
}

.pa-toggle input:focus + .pa-toggle-slider {
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.2);
}

.pa-toggle-label {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pa-toggle-label strong {
    color: var(--pa-color-primary);
}

.pa-toggle-label small {
    color: #666;
    font-size: 14px;
}

/* Navigation Buttons */
.pa-navigation {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--pa-color-border);
}

.pa-calculator .pa-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px !important;
    font-size: var(--pa-font-size-base) !important;
    font-weight: 600 !important;
    font-family: inherit;
    border: none !important;
    border-radius: var(--pa-border-radius) !important;
    cursor: pointer;
    transition: all var(--pa-transition);
    text-decoration: none !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    line-height: 1.5 !important;
}

.pa-calculator .pa-btn.pa-hidden {
    display: none !important;
}

.pa-calculator .pa-btn:focus {
    outline: 2px solid var(--pa-focus-color);
    outline-offset: 2px;
}

.pa-calculator .pa-btn-primary {
    background: linear-gradient(135deg, var(--pa-color-primary), var(--pa-color-secondary)) !important;
    color: white !important;
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.2);
}

.pa-calculator .pa-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 58, 95, 0.35);
    color: white !important;
}

.pa-calculator .pa-btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(30, 58, 95, 0.2);
}

.pa-calculator .pa-btn-secondary {
    background: white !important;
    color: var(--pa-color-primary) !important;
    border: 2px solid var(--pa-color-border) !important;
}

.pa-calculator .pa-btn-secondary:hover {
    border-color: var(--pa-color-primary) !important;
    background: rgba(30, 58, 95, 0.04) !important;
    color: var(--pa-color-primary) !important;
}

.pa-calculator .pa-btn-icon {
    font-size: 18px;
    transition: transform var(--pa-transition);
}

.pa-calculator .pa-btn-primary:hover .pa-btn-icon {
    transform: translateX(3px);
}

.pa-calculator .pa-btn-secondary:hover .pa-btn-icon {
    transform: translateX(-3px);
}

.pa-calculator .pa-btn-next,
.pa-calculator .pa-btn-calculate {
    margin-left: auto;
}

/* Result Section */
.pa-result {
    text-align: center;
    padding: 40px 0 32px;
}

.pa-result-title {
    font-family: var(--pa-font-heading);
    font-size: calc(var(--pa-font-size-base) * var(--pa-scale-ratio));
    color: var(--pa-color-text);
    margin: 0 0 28px;
    font-weight: 500;
}

.pa-result-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.08), rgba(40, 167, 69, 0.02));
    border-radius: 16px;
    margin-bottom: 12px;
}

.pa-amount {
    font-size: 56px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--pa-color-success), #20c997);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.pa-currency {
    font-size: 28px;
    font-weight: 600;
    color: var(--pa-color-success);
}

.pa-result-period {
    font-size: 16px;
    color: #666;
    margin: 0 0 20px;
}

.pa-result-per-child {
    font-size: 15px;
    color: var(--pa-color-success);
    background: rgba(40, 167, 69, 0.1);
    padding: 10px 20px;
    border-radius: 24px;
    display: inline-block;
    font-weight: 500;
}

.pa-result-capped {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    padding: 14px 20px;
    background: linear-gradient(135deg, #fff3cd, #fff8e6);
    color: #856404;
    border-radius: var(--pa-border-radius);
    font-size: 14px;
    font-weight: 500;
}

/* Explanation Section */
.pa-explanation {
    margin-top: 32px;
    text-align: left;
}

.pa-explanation-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: white;
    border: 2px solid var(--pa-color-border);
    border-radius: var(--pa-border-radius);
    font-size: var(--pa-font-size-base);
    font-family: inherit;
    color: var(--pa-color-text);
    cursor: pointer;
    transition: all var(--pa-transition);
}

.pa-explanation-toggle:hover {
    border-color: var(--pa-color-primary);
}

.pa-explanation-icon {
    font-size: 20px;
}

.pa-toggle-icon {
    margin-left: auto;
    transition: transform var(--pa-transition);
}

.pa-explanation-toggle[aria-expanded="true"] .pa-toggle-icon {
    transform: rotate(180deg);
}

.pa-explanation-content {
    padding: 20px;
    background: white;
    border: 2px solid var(--pa-color-border);
    border-top: none;
    border-radius: 0 0 var(--pa-border-radius) var(--pa-border-radius);
}

.pa-explanation-step {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--pa-color-border);
}

.pa-explanation-step:last-child {
    border-bottom: none;
    font-weight: 600;
    color: var(--pa-color-primary);
}

.pa-explanation-label {
    color: #666;
}

.pa-explanation-value {
    font-weight: 500;
}

.pa-explanation-divider {
    border-top: 2px solid var(--pa-color-primary);
    margin: 8px 0;
}

/* Disclaimer */
.pa-disclaimer {
    margin-top: 24px;
    padding: 16px;
    background: #f8f9fa;
    border-left: 4px solid var(--pa-color-accent);
    border-radius: 0 var(--pa-border-radius) var(--pa-border-radius) 0;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Loading */
.pa-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--pa-border-radius);
    z-index: 10;
}

.pa-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--pa-color-border);
    border-top-color: var(--pa-color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Animations */
@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.pa-amount.animate {
    animation: countUp 0.5s ease-out;
}

/* Responsive */
@media (max-width: 576px) {
    .pa-calculator {
        padding: 16px;
    }

    .pa-step-label {
        display: none;
    }

    .pa-amount {
        font-size: 48px;
    }

    .pa-currency {
        font-size: 24px;
    }

    .pa-navigation {
        flex-wrap: wrap;
    }

    .pa-calculator .pa-btn {
        flex: 1;
        justify-content: center;
        min-width: 120px;
    }

    .pa-calculator .pa-btn-next,
    .pa-calculator .pa-btn-calculate {
        margin-left: 0;
    }
}

/* Focus styles for accessibility */
.pa-calculator :focus-visible {
    outline: 2px solid var(--pa-focus-color);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .pa-calculator *,
    .pa-calculator *::before,
    .pa-calculator *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}