/**
 * CHECKBOXES, RADIOS & TOGGLES - PharmData Design System v2.0
 * Componentes de seleção customizados com identidade visual consistente
 *
 * Substitui completamente os controles nativos do navegador.
 * Suporta todos os estados: default, hover, focus, checked, disabled, error.
 */

/* ===================
   CSS CUSTOM PROPERTIES
   =================== */

:root {
    /* Checkbox/Radio sizing */
    --checkbox-size: 1.125rem;
    --checkbox-size-sm: 0.875rem;
    --checkbox-size-lg: 1.375rem;

    /* Border */
    --checkbox-border-width: 1.5px;
    --checkbox-border-color: rgba(183, 228, 213, 0.5);
    --checkbox-border-hover: var(--teal-intense, #2AA198);
    --checkbox-border-checked: var(--teal-intense, #2AA198);

    /* Background */
    --checkbox-bg: var(--cloud);
    --checkbox-bg-checked: var(--teal-intense, #2AA198);
    --checkbox-bg-disabled: var(--arctic-mist, #E9ECEF);

    /* Focus ring */
    --checkbox-ring-color: rgba(42, 161, 152, 0.2);
    --checkbox-ring-offset: 2px;

    /* Checkmark */
    --checkbox-check-color: white;

    /* Toggle specific */
    --toggle-width: 2.75rem;
    --toggle-height: 1.5rem;
    --toggle-knob-size: 1.125rem;
    --toggle-bg: var(--soft-steel, #94A3B8);
    --toggle-bg-checked: var(--teal-intense, #2AA198);

    /* Transition */
    --checkbox-transition: all 0.15s ease;
}

/* Dark mode overrides */
:root.dark-mode {
    --checkbox-border-color: rgba(183, 228, 213, 0.3);
    --checkbox-bg: var(--arctic-mist, #1a2332);
    --checkbox-bg-disabled: rgba(255, 255, 255, 0.1);
    --checkbox-ring-color: rgba(42, 161, 152, 0.3);
    --toggle-bg: rgba(148, 163, 184, 0.4);
}

/* ===================
   BASE CHECKBOX
   Container que esconde o input nativo
   =================== */

.form-checkbox,
.form-radio {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.9375rem;
    color: var(--graphite-depth, #1F2937);
    line-height: 1.4;
}

/* Esconde input nativo */
.form-checkbox input,
.form-radio input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

/* ===================
   CHECKBOX VISUAL
   O elemento visual customizado
   =================== */

.form-checkbox .checkbox-mark,
.checkbox-mark {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: var(--checkbox-size);
    height: var(--checkbox-size);
    border: var(--checkbox-border-width) solid var(--checkbox-border-color);
    border-radius: 0.25rem;
    background: var(--checkbox-bg);
    transition: var(--checkbox-transition);
}

/* Checkmark icon (usando SVG inline) */
.form-checkbox .checkbox-mark::after {
    content: '';
    position: absolute;
    opacity: 0;
    transform: scale(0.5);
    transition: var(--checkbox-transition);
    width: 0.625rem;
    height: 0.625rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

/* Hover state */
.form-checkbox:hover .checkbox-mark {
    border-color: var(--checkbox-border-hover);
    background: rgba(183, 228, 213, 0.05);
}

/* Focus state */
.form-checkbox input:focus-visible + .checkbox-mark {
    border-color: var(--checkbox-border-hover);
    box-shadow: 0 0 0 var(--checkbox-ring-offset) var(--checkbox-ring-color);
}

/* Checked state */
.form-checkbox input:checked + .checkbox-mark {
    background: var(--checkbox-bg-checked);
    border-color: var(--checkbox-border-checked);
}

.form-checkbox input:checked + .checkbox-mark::after {
    opacity: 1;
    transform: scale(1);
}

/* Indeterminate state */
.form-checkbox input:indeterminate + .checkbox-mark {
    background: var(--checkbox-bg-checked);
    border-color: var(--checkbox-border-checked);
}

.form-checkbox input:indeterminate + .checkbox-mark::after {
    opacity: 1;
    transform: scale(1);
    width: 0.5rem;
    height: 2px;
    background: var(--checkbox-check-color);
    background-image: none;
    border-radius: 1px;
}

/* Disabled state */
.form-checkbox input:disabled + .checkbox-mark {
    background: var(--checkbox-bg-disabled);
    border-color: var(--checkbox-border-color);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-checkbox input:disabled ~ .checkbox-label,
.form-checkbox:has(input:disabled) {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Error state */
.form-checkbox.error .checkbox-mark,
.form-checkbox-error .checkbox-mark {
    border-color: var(--error, #EF4444);
}

.form-checkbox.error input:focus-visible + .checkbox-mark,
.form-checkbox-error input:focus-visible + .checkbox-mark {
    box-shadow: 0 0 0 var(--checkbox-ring-offset) rgba(239, 68, 68, 0.2);
}

/* ===================
   CHECKBOX SIZES
   =================== */

.form-checkbox-sm .checkbox-mark {
    width: var(--checkbox-size-sm);
    height: var(--checkbox-size-sm);
    border-radius: 0.1875rem;
}

.form-checkbox-sm .checkbox-mark::after {
    width: 0.5rem;
    height: 0.5rem;
}

.form-checkbox-sm {
    font-size: 0.8125rem;
}

.form-checkbox-lg .checkbox-mark {
    width: var(--checkbox-size-lg);
    height: var(--checkbox-size-lg);
    border-radius: 0.3125rem;
}

.form-checkbox-lg .checkbox-mark::after {
    width: 0.75rem;
    height: 0.75rem;
}

.form-checkbox-lg {
    font-size: 1rem;
}

/* ===================
   RADIO BUTTON
   =================== */

.form-radio .radio-mark,
.radio-mark {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: var(--checkbox-size);
    height: var(--checkbox-size);
    border: var(--checkbox-border-width) solid var(--checkbox-border-color);
    border-radius: 50%;
    background: var(--checkbox-bg);
    transition: var(--checkbox-transition);
}

/* Radio dot */
.form-radio .radio-mark::after {
    content: '';
    position: absolute;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--checkbox-check-color);
    opacity: 0;
    transform: scale(0);
    transition: var(--checkbox-transition);
}

/* Hover */
.form-radio:hover .radio-mark {
    border-color: var(--checkbox-border-hover);
    background: rgba(183, 228, 213, 0.05);
}

/* Focus */
.form-radio input:focus-visible + .radio-mark {
    border-color: var(--checkbox-border-hover);
    box-shadow: 0 0 0 var(--checkbox-ring-offset) var(--checkbox-ring-color);
}

/* Checked */
.form-radio input:checked + .radio-mark {
    background: var(--checkbox-bg-checked);
    border-color: var(--checkbox-border-checked);
}

.form-radio input:checked + .radio-mark::after {
    opacity: 1;
    transform: scale(1);
}

/* Disabled */
.form-radio input:disabled + .radio-mark {
    background: var(--checkbox-bg-disabled);
    border-color: var(--checkbox-border-color);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-radio input:disabled ~ .radio-label,
.form-radio:has(input:disabled) {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Error */
.form-radio.error .radio-mark,
.form-radio-error .radio-mark {
    border-color: var(--error, #EF4444);
}

/* Radio sizes */
.form-radio-sm .radio-mark {
    width: var(--checkbox-size-sm);
    height: var(--checkbox-size-sm);
}

.form-radio-sm .radio-mark::after {
    width: 0.375rem;
    height: 0.375rem;
}

.form-radio-lg .radio-mark {
    width: var(--checkbox-size-lg);
    height: var(--checkbox-size-lg);
}

.form-radio-lg .radio-mark::after {
    width: 0.625rem;
    height: 0.625rem;
}

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

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.radio-group-horizontal {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
}

.radio-group-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    color: var(--emerald-abyss, #0B2D2A);
}

/* ===================
   TOGGLE / SWITCH
   =================== */

.form-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    cursor: pointer;
    user-select: none;
    font-size: 0.9375rem;
    color: var(--graphite-depth, #1F2937);
}

.form-toggle input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.toggle-track {
    position: relative;
    width: var(--toggle-width);
    height: var(--toggle-height);
    background: var(--toggle-bg);
    border-radius: calc(var(--toggle-height) / 2);
    transition: var(--checkbox-transition);
    flex-shrink: 0;
}

.toggle-track::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0.1875rem;
    transform: translateY(-50%);
    width: var(--toggle-knob-size);
    height: var(--toggle-knob-size);
    background: var(--cloud);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: var(--checkbox-transition);
}

/* Hover */
.form-toggle:hover .toggle-track {
    background: var(--soft-steel, #64748B);
}

/* Focus */
.form-toggle input:focus-visible + .toggle-track {
    box-shadow: 0 0 0 var(--checkbox-ring-offset) var(--checkbox-ring-color);
}

/* Checked */
.form-toggle input:checked + .toggle-track {
    background: var(--toggle-bg-checked);
}

.form-toggle input:checked + .toggle-track::after {
    left: calc(100% - var(--toggle-knob-size) - 0.1875rem);
}

.form-toggle:hover input:checked + .toggle-track {
    background: var(--emerald-abyss, #0B2D2A);
}

/* Disabled */
.form-toggle input:disabled + .toggle-track {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-toggle:has(input:disabled) {
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===================
   TOGGLE SIZES
   =================== */

.form-toggle-sm .toggle-track {
    width: 2.25rem;
    height: 1.25rem;
}

.form-toggle-sm .toggle-track::after {
    width: 0.875rem;
    height: 0.875rem;
}

.form-toggle-sm input:checked + .toggle-track::after {
    left: calc(100% - 0.875rem - 0.1875rem);
}

.form-toggle-lg .toggle-track {
    width: 3.5rem;
    height: 1.875rem;
}

.form-toggle-lg .toggle-track::after {
    width: 1.5rem;
    height: 1.5rem;
}

.form-toggle-lg input:checked + .toggle-track::after {
    left: calc(100% - 1.5rem - 0.1875rem);
}

/* ===================
   TOGGLE WITH LABELS
   =================== */

.form-toggle-labeled {
    gap: 0;
}

.toggle-label-off,
.toggle-label-on {
    padding: 0 0.5rem;
    font-size: 0.8125rem;
    color: var(--soft-steel, #64748B);
    transition: color 0.15s ease;
}

.form-toggle input:not(:checked) ~ .toggle-label-off {
    color: var(--graphite-depth, #1F2937);
    font-weight: 500;
}

.form-toggle input:checked ~ .toggle-label-on {
    color: var(--teal-intense, #2AA198);
    font-weight: 500;
}

/* ===================
   TOGGLE WITH ICONS
   =================== */

.toggle-track-icons {
    position: relative;
}

.toggle-track-icons .toggle-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.625rem;
    transition: opacity 0.15s ease;
}

.toggle-track-icons .toggle-icon-off {
    right: 0.375rem;
    color: rgba(255, 255, 255, 0.7);
    opacity: 1;
}

.toggle-track-icons .toggle-icon-on {
    left: 0.375rem;
    color: rgba(255, 255, 255, 0.9);
    opacity: 0;
}

.form-toggle input:checked + .toggle-track-icons .toggle-icon-off {
    opacity: 0;
}

.form-toggle input:checked + .toggle-track-icons .toggle-icon-on {
    opacity: 1;
}

/* ===================
   CHECKBOX/RADIO CARD
   Estilo de card selecionável
   =================== */

.form-checkbox-card,
.form-radio-card {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: 1.5px solid var(--checkbox-border-color);
    border-radius: 0.5rem;
    background: var(--checkbox-bg);
    cursor: pointer;
    transition: var(--checkbox-transition);
}

.form-checkbox-card:hover,
.form-radio-card:hover {
    border-color: var(--checkbox-border-hover);
    background: rgba(183, 228, 213, 0.03);
}

.form-checkbox-card:has(input:checked),
.form-radio-card:has(input:checked) {
    border-color: var(--teal-intense, #2AA198);
    background: rgba(42, 161, 152, 0.05);
}

.form-checkbox-card:has(input:focus-visible),
.form-radio-card:has(input:focus-visible) {
    box-shadow: 0 0 0 3px var(--checkbox-ring-color);
}

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

.checkbox-card-title,
.radio-card-title {
    font-weight: 600;
    color: var(--graphite-depth, #1F2937);
    margin-bottom: 0.25rem;
}

.checkbox-card-desc,
.radio-card-desc {
    font-size: 0.8125rem;
    color: var(--soft-steel, #64748B);
    line-height: 1.4;
}

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

/* High contrast mode */
@media (prefers-contrast: high) {
    .checkbox-mark,
    .radio-mark {
        border-width: 2px;
    }

    .form-checkbox input:checked + .checkbox-mark,
    .form-radio input:checked + .radio-mark {
        outline: 2px solid currentColor;
        outline-offset: 2px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .checkbox-mark,
    .checkbox-mark::after,
    .radio-mark,
    .radio-mark::after,
    .toggle-track,
    .toggle-track::after {
        transition: none;
    }
}