/* ============================================
TREINIO RADIO COMPONENT
Размер: 20×20. Checked: primary border + dot
============================================ */

.radio {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.radio-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-circle {
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--border-default);
    border-radius: var(--radius-full);
    background: var(--bg-input);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-hover) var(--transition-ease);
    flex-shrink: 0;
}

.radio-input:not(:checked):not(:disabled) + .radio-circle:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
}

.radio-input:checked:not(:disabled) + .radio-circle:hover {
    border-color: var(--color-primary-hover);
}

.radio-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-hover) var(--transition-ease);
}

.radio-input:checked + .radio-circle {
    border-color: var(--color-primary);
}

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

.radio-input:disabled + .radio-circle {
    opacity: 0.5;
    cursor: not-allowed;
}

.radio-label {
    font-size: var(--font-sm);
    color: var(--text-primary);
    user-select: none;
}