/**
 * RADIO BUTTON COMPONENT
 *
 * Componente de radio button com suporte a:
 * - Estados: default, hover, selected, disabled
 * - Tamanhos: sm, md, lg
 * - Labels inline e block
 * - Dark mode
 * - Acessibilidade WCAG 2.1 AA
 * - Cores: primary (blue), success, warning, danger
 *
 * Baseado no Design System Figma - Gales
 * @version 1.0.0
 * @date 2025-10-30
 */

/* ============================================
   BASE RADIO STRUCTURE
   ============================================ */

.radio-group {
    display: inline-flex;
    align-items: flex-start;
    gap: var(--spacing-sm, 8px);
    position: relative;
    cursor: pointer;
    user-select: none;
}

.radio-group-vertical {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs, 6px);
}

/* Container do radio */
.radio-container {
    position: relative;
    display: inline-flex;
    align-items: center;
}

/* Input nativo (escondido) */
.radio-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

/* Radio visual customizado */
.radio-circle {
    position: relative;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-color: var(--color-text-light);
    border: 2px solid var(--color-neutral-400, var(--color-neutral-400));
    border-radius: 50%;
    transition: all var(--transition-base, 200ms ease-in-out);
    cursor: pointer;
}

/* Dot interno (quando selecionado) */
.radio-dot {
    width: 10px;
    height: 10px;
    background-color: var(--color-text-light);
    border-radius: 50%;
    transform: scale(0);
    transition: transform var(--transition-fast, 150ms ease-in-out);
}

/* ============================================
   LABEL
   ============================================ */

.radio-label {
    display: flex;
    flex-direction: column;
    gap: 2px;
    cursor: pointer;
}

.radio-label-text {
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    color: var(--color-text-primary, var(--color-neutral-800));
    margin: 0;
}

.radio-label-description {
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 12px;
    font-weight: 400;
    line-height: 16px;
    color: var(--color-neutral-600, var(--color-neutral-500));
    margin: 0;
}

/* Label obrigatório */
.radio-label-required {
    color: var(--color-danger, var(--color-red-400));
    margin-left: 2px;
}

/* ============================================
   ESTADOS - DEFAULT (UNCHECKED)
   ============================================ */

/* Hover (unchecked) */
.radio-group:hover .radio-circle,
.radio-circle:hover {
    border-color: var(--color-neutral-500, var(--color-neutral-500));
    background-color: var(--color-neutral-50, #FAFBFC);
}

/* Focus (unchecked) */
.radio-input:focus + .radio-circle {
    border-color: var(--color-accent-300);
    box-shadow: 0 0 0 3px rgba(63, 104, 251, 0.1);
}

/* Focus visible (keyboard navigation) */
.radio-input:focus-visible + .radio-circle {
    outline: 2px solid var(--color-accent-300);
    outline-offset: 2px;
}

/* ============================================
   ESTADOS - CHECKED (SELECTED)
   ============================================ */

/* Checked */
.radio-input:checked + .radio-circle {
    background-color: var(--color-accent-300);
    border-color: var(--color-accent-300);
}

.radio-input:checked + .radio-circle .radio-dot {
    transform: scale(1);
}

/* Checked + Hover */
.radio-input:checked + .radio-circle:hover,
.radio-group:hover .radio-input:checked + .radio-circle {
    background-color: #2952E8;
    border-color: #2952E8;
}

/* Checked + Focus */
.radio-input:checked:focus + .radio-circle {
    border-color: var(--color-accent-300);
    box-shadow: 0 0 0 3px rgba(63, 104, 251, 0.15);
}

/* ============================================
   ESTADOS - DISABLED
   ============================================ */

.radio-input:disabled + .radio-circle,
.radio-group.radio-disabled .radio-circle {
    background-color: var(--color-neutral-100, var(--color-neutral-100));
    border-color: var(--color-neutral-300, var(--color-neutral-300));
    cursor: not-allowed;
    opacity: 0.6;
}

.radio-input:disabled:checked + .radio-circle,
.radio-group.radio-disabled .radio-input:checked + .radio-circle {
    background-color: var(--color-neutral-400, var(--color-neutral-400));
    border-color: var(--color-neutral-400, var(--color-neutral-400));
}

.radio-input:disabled ~ .radio-label,
.radio-group.radio-disabled .radio-label {
    color: var(--color-neutral-500, var(--color-neutral-500));
    cursor: not-allowed;
    opacity: 0.6;
}

/* Disabled não reage a hover */
.radio-input:disabled + .radio-circle:hover,
.radio-group.radio-disabled:hover .radio-circle {
    background-color: var(--color-neutral-100, var(--color-neutral-100));
    border-color: var(--color-neutral-300, var(--color-neutral-300));
}

/* ============================================
   ESTADOS - ERROR
   ============================================ */

.radio-group.radio-error .radio-circle {
    border-color: var(--color-danger, var(--color-red-400));
}

.radio-group.radio-error .radio-input:focus + .radio-circle {
    border-color: var(--color-danger, var(--color-red-400));
    box-shadow: 0 0 0 3px rgba(232, 58, 48, 0.1);
}

.radio-group.radio-error .radio-input:checked + .radio-circle {
    background-color: var(--color-danger, var(--color-red-400));
    border-color: var(--color-danger, var(--color-red-400));
}

.radio-group.radio-error .radio-input:checked + .radio-circle:hover {
    background-color: #D22E24;
    border-color: #D22E24;
}

/* ============================================
   TAMANHOS
   ============================================ */

/* Small */
.radio-group.radio-sm .radio-circle {
    width: 16px;
    height: 16px;
}

.radio-group.radio-sm .radio-dot {
    width: 8px;
    height: 8px;
}

.radio-group.radio-sm .radio-label-text {
    font-size: 13px;
    line-height: 18px;
}

.radio-group.radio-sm .radio-label-description {
    font-size: 11px;
    line-height: 14px;
}

/* Large */
.radio-group.radio-lg .radio-circle {
    width: 24px;
    height: 24px;
}

.radio-group.radio-lg .radio-dot {
    width: 12px;
    height: 12px;
}

.radio-group.radio-lg .radio-label-text {
    font-size: 16px;
    line-height: 24px;
}

.radio-group.radio-lg .radio-label-description {
    font-size: 14px;
    line-height: 20px;
}

/* ============================================
   VARIANTES DE COR
   ============================================ */

/* Success (Green) */
.radio-group.radio-success .radio-input:checked + .radio-circle {
    background-color: var(--color-success, #47B881);
    border-color: var(--color-success, #47B881);
}

.radio-group.radio-success .radio-input:checked + .radio-circle:hover {
    background-color: #3A9668;
    border-color: #3A9668;
}

.radio-group.radio-success .radio-input:focus + .radio-circle {
    box-shadow: 0 0 0 3px rgba(71, 184, 129, 0.15);
}

/* Warning (Yellow) */
.radio-group.radio-warning .radio-input:checked + .radio-circle {
    background-color: var(--color-warning, #F5B944);
    border-color: var(--color-warning, #F5B944);
}

.radio-group.radio-warning .radio-input:checked + .radio-circle:hover {
    background-color: #E0A52F;
    border-color: #E0A52F;
}

.radio-group.radio-warning .radio-input:focus + .radio-circle {
    box-shadow: 0 0 0 3px rgba(245, 185, 68, 0.15);
}

/* Danger (Red) */
.radio-group.radio-danger .radio-input:checked + .radio-circle {
    background-color: var(--color-danger, var(--color-red-400));
    border-color: var(--color-danger, var(--color-red-400));
}

.radio-group.radio-danger .radio-input:checked + .radio-circle:hover {
    background-color: #D22E24;
    border-color: #D22E24;
}

.radio-group.radio-danger .radio-input:focus + .radio-circle {
    box-shadow: 0 0 0 3px rgba(232, 58, 48, 0.15);
}

/* ============================================
   RADIO GROUP CONTAINER
   ============================================ */

.radio-fieldset {
    border: none;
    margin: 0;
    padding: 0;
}

.radio-fieldset-legend {
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
    color: var(--color-text-primary, var(--color-neutral-800));
    margin-bottom: var(--spacing-sm, 8px);
    padding: 0;
}

.radio-fieldset-legend-required {
    color: var(--color-danger, var(--color-red-400));
    margin-left: 2px;
}

/* ============================================
   HELPER TEXT E MENSAGENS
   ============================================ */

.radio-helper {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin-top: var(--spacing-xs, 6px);
    margin-left: 28px; /* Alinhado com o label */
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 12px;
    line-height: 16px;
    color: var(--color-neutral-600, var(--color-neutral-500));
}

.radio-helper-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

.radio-error-message {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    margin-top: var(--spacing-xs, 6px);
    margin-left: 28px; /* Alinhado com o label */
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 12px;
    line-height: 16px;
    color: var(--color-danger, var(--color-red-400));
    font-weight: 500;
}

.radio-error-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* Para helper/error do fieldset */
.radio-fieldset-helper {
    margin-left: 0;
}

.radio-fieldset-error {
    margin-left: 0;
}

/* ============================================
   RADIO LIST
   ============================================ */

.radio-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm, 8px);
}

.radio-list-horizontal {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md, 16px);
}

/* ============================================
   RADIO BUTTON (CARD STYLE)
   ============================================ */

.radio-card {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm, 12px);
    padding: 16px;
    background-color: var(--color-text-light);
    border: 2px solid var(--color-neutral-300, var(--color-neutral-300));
    border-radius: var(--radius-md, 8px);
    cursor: pointer;
    transition: all var(--transition-base, 200ms ease-in-out);
}

.radio-card:hover {
    border-color: var(--color-neutral-400, var(--color-neutral-400));
    background-color: var(--color-neutral-50, #FAFBFC);
}

.radio-input:checked ~ .radio-card,
.radio-card.radio-card-selected {
    border-color: var(--color-accent-300);
    background-color: rgba(63, 104, 251, 0.02);
}

.radio-input:checked ~ .radio-card:hover,
.radio-card.radio-card-selected:hover {
    border-color: #2952E8;
    background-color: rgba(63, 104, 251, 0.05);
}

.radio-input:focus ~ .radio-card {
    box-shadow: 0 0 0 3px rgba(63, 104, 251, 0.1);
}

.radio-card-content {
    flex: 1;
}

.radio-card-title {
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
    color: var(--color-text-primary, var(--color-neutral-800));
    margin: 0 0 4px 0;
}

.radio-card-description {
    font-family: var(--font-body, 'Inter', sans-serif);
    font-size: 13px;
    line-height: 18px;
    color: var(--color-neutral-600, var(--color-neutral-500));
    margin: 0;
}

/* ============================================
   DARK MODE
   ============================================ */

.dark .radio-label-text,
[data-theme="dark"] .radio-label-text {
    color: var(--color-text-primary-dark, var(--color-neutral-300));
}

.dark .radio-label-description,
[data-theme="dark"] .radio-label-description {
    color: var(--color-neutral-500, var(--color-neutral-400));
}

.dark .radio-circle,
[data-theme="dark"] .radio-circle {
    background-color: var(--color-neutral-700);
    border-color: var(--color-neutral-500);
}

.dark .radio-group:hover .radio-circle,
.dark .radio-circle:hover,
[data-theme="dark"] .radio-group:hover .radio-circle,
[data-theme="dark"] .radio-circle:hover {
    border-color: var(--color-neutral-500);
    background-color: var(--color-neutral-700);
}

.dark .radio-input:focus + .radio-circle,
[data-theme="dark"] .radio-input:focus + .radio-circle {
    border-color: var(--color-accent-300);
    box-shadow: 0 0 0 3px rgba(77, 145, 245, 0.15);
}

/* Checked Dark Mode */
.dark .radio-input:checked + .radio-circle,
[data-theme="dark"] .radio-input:checked + .radio-circle {
    background-color: var(--color-accent-300);
    border-color: var(--color-accent-300);
}

.dark .radio-input:checked + .radio-circle:hover,
[data-theme="dark"] .radio-input:checked + .radio-circle:hover {
    background-color: #3B7DE0;
    border-color: #3B7DE0;
}

.dark .radio-input:checked:focus + .radio-circle,
[data-theme="dark"] .radio-input:checked:focus + .radio-circle {
    box-shadow: 0 0 0 3px rgba(77, 145, 245, 0.2);
}

/* Disabled Dark Mode */
.dark .radio-input:disabled + .radio-circle,
.dark .radio-group.radio-disabled .radio-circle,
[data-theme="dark"] .radio-input:disabled + .radio-circle,
[data-theme="dark"] .radio-group.radio-disabled .radio-circle {
    background-color: var(--color-neutral-800);
    border-color: var(--color-neutral-600);
}

.dark .radio-input:disabled:checked + .radio-circle,
.dark .radio-group.radio-disabled .radio-input:checked + .radio-circle,
[data-theme="dark"] .radio-input:disabled:checked + .radio-circle,
[data-theme="dark"] .radio-group.radio-disabled .radio-input:checked + .radio-circle {
    background-color: var(--color-neutral-600);
    border-color: var(--color-neutral-600);
}

.dark .radio-input:disabled ~ .radio-label,
.dark .radio-group.radio-disabled .radio-label,
[data-theme="dark"] .radio-input:disabled ~ .radio-label,
[data-theme="dark"] .radio-group.radio-disabled .radio-label {
    color: var(--color-neutral-500);
}

/* Error Dark Mode */
.dark .radio-group.radio-error .radio-circle,
[data-theme="dark"] .radio-group.radio-error .radio-circle {
    border-color: #FF5449;
}

.dark .radio-group.radio-error .radio-input:checked + .radio-circle,
[data-theme="dark"] .radio-group.radio-error .radio-input:checked + .radio-circle {
    background-color: #FF5449;
    border-color: #FF5449;
}

.dark .radio-group.radio-error .radio-input:checked + .radio-circle:hover,
[data-theme="dark"] .radio-group.radio-error .radio-input:checked + .radio-circle:hover {
    background-color: #E8483E;
    border-color: #E8483E;
}

/* Success Dark Mode */
.dark .radio-group.radio-success .radio-input:checked + .radio-circle,
[data-theme="dark"] .radio-group.radio-success .radio-input:checked + .radio-circle {
    background-color: #50D890;
    border-color: #50D890;
}

.dark .radio-group.radio-success .radio-input:checked + .radio-circle:hover,
[data-theme="dark"] .radio-group.radio-success .radio-input:checked + .radio-circle:hover {
    background-color: #3FC479;
    border-color: #3FC479;
}

/* Warning Dark Mode */
.dark .radio-group.radio-warning .radio-input:checked + .radio-circle,
[data-theme="dark"] .radio-group.radio-warning .radio-input:checked + .radio-circle {
    background-color: #FFC857;
    border-color: #FFC857;
}

.dark .radio-group.radio-warning .radio-input:checked + .radio-circle:hover,
[data-theme="dark"] .radio-group.radio-warning .radio-input:checked + .radio-circle:hover {
    background-color: #F0B541;
    border-color: #F0B541;
}

/* Fieldset Dark Mode */
.dark .radio-fieldset-legend,
[data-theme="dark"] .radio-fieldset-legend {
    color: var(--color-neutral-300);
}

/* Card Style Dark Mode */
.dark .radio-card,
[data-theme="dark"] .radio-card {
    background-color: var(--color-neutral-700);
    border-color: var(--color-neutral-600);
}

.dark .radio-card:hover,
[data-theme="dark"] .radio-card:hover {
    border-color: var(--color-neutral-500);
    background-color: var(--color-neutral-700);
}

.dark .radio-input:checked ~ .radio-card,
.dark .radio-card.radio-card-selected,
[data-theme="dark"] .radio-input:checked ~ .radio-card,
[data-theme="dark"] .radio-card.radio-card-selected {
    border-color: var(--color-accent-300);
    background-color: rgba(77, 145, 245, 0.05);
}

.dark .radio-card-title,
[data-theme="dark"] .radio-card-title {
    color: var(--color-neutral-300);
}

.dark .radio-card-description,
[data-theme="dark"] .radio-card-description {
    color: var(--color-neutral-400);
}

/* Helper/Error Messages Dark Mode */
.dark .radio-helper,
[data-theme="dark"] .radio-helper {
    color: var(--color-neutral-400);
}

.dark .radio-error-message,
[data-theme="dark"] .radio-error-message {
    color: #FF5449;
}

/* ============================================
   ANIMAÇÕES
   ============================================ */

@keyframes radio-select {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.3);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.radio-input:checked + .radio-circle .radio-dot {
    animation: radio-select 0.2s ease-in-out;
}

/* Ripple effect (opcional) */
@keyframes radio-ripple {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }
    100% {
        transform: scale(2.5);
        opacity: 0;
    }
}

.radio-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: currentColor;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
    pointer-events: none;
}

.radio-input:active + .radio-circle::before {
    animation: radio-ripple 0.4s ease-out;
}

/* ============================================
   RESPONSIVIDADE
   ============================================ */

@media (max-width: 768px) {
    .radio-list-horizontal {
        flex-direction: column;
    }

    .radio-helper,
    .radio-error-message {
        margin-left: 0;
        margin-top: var(--spacing-xs, 6px);
    }

    .radio-card {
        padding: 12px;
    }
}

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

@media print {
    .radio-circle {
        border: 2px solid #000;
        background: #fff;
    }

    .radio-input:checked + .radio-circle {
        background: #fff;
        border: 2px solid #000;
    }

    .radio-input:checked + .radio-circle .radio-dot {
        background: #000;
    }

    .radio-card {
        border: 1px solid #000;
        background: #fff;
    }

    .radio-input:checked ~ .radio-card {
        border: 2px solid #000;
    }
}

/* ============================================
   ACESSIBILIDADE
   ============================================ */

/* High Contrast Mode (Windows) */
@media (prefers-contrast: high) {
    .radio-circle {
        border-width: 2px;
    }

    .radio-input:checked + .radio-circle {
        border-width: 2px;
    }

    .radio-input:focus + .radio-circle {
        outline: 3px solid;
        outline-offset: 2px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .radio-circle,
    .radio-dot,
    .radio-card {
        transition: none;
        animation: none;
    }

    .radio-circle::before {
        animation: none;
    }
}