/**
 * Стили форм - Автомедиафасад
 */

/* Формы */
.form {
    width: 100%;
}

.form__title {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.form__subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

.form__field {
    margin-bottom: var(--spacing-lg);
}

.form__label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.form__required {
    color: var(--color-error);
}

.form__input,
.form__textarea,
.form__select {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-text);
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(33, 76, 122, 0.1);
}

.form__input--error,
.form__textarea--error,
.form__select--error {
    border-color: var(--color-error);
}

.form__input--error:focus,
.form__textarea--error:focus,
.form__select--error:focus {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

.form__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: calc(var(--spacing-md) * 3);
}

.form__error {
    display: none;
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form__error:not(:empty) {
    display: block;
}

.form__field--checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form__checkbox {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    cursor: pointer;
}

.form__checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.5;
}

.form__checkbox-text {
    flex: 1;
}

.form__checkbox-text a {
    color: var(--color-primary);
    text-decoration: underline;
}

.form__radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-sm);
}

.form__radio-label:hover {
    border-color: var(--color-primary);
    background-color: var(--color-bg-light);
}

.form__radio {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.form__radio:checked + span {
    font-weight: 600;
    color: var(--color-primary);
}

.form__radio-label:has(.form__radio:checked) {
    border-color: var(--color-primary);
    background-color: rgba(33, 76, 122, 0.05);
}

.form__submit {
    width: 100%;
    margin-top: var(--spacing-xl);
}

.form__message {
    display: none;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.form__message--success {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.form__message--error {
    background-color: rgba(244, 67, 54, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

/* Калькулятор */
.calculator {
    width: 100%;
}

.calculator__progress {
    width: 100%;
    height: 4px;
    background-color: var(--color-bg-light);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

.calculator__progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
    width: 0%;
}

.calculator__step {
    display: none;
}

.calculator__step--active {
    display: block;
}

.calculator__navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.calculator__btn-prev,
.calculator__btn-next,
.calculator__btn-submit {
    flex: 1;
}

.calculator__btn-next:disabled {
    background-color: var(--color-border);
    color: var(--color-text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.calculator__btn-next:disabled:hover {
    background-color: var(--color-border);
    transform: none;
    box-shadow: none;
}

@media (min-width: 768px) {
    .form__title,
    .form__subtitle {
        text-align: left;
    }
    
    .form__submit {
        width: auto;
        min-width: 200px;
    }
    
    .calculator__navigation {
        justify-content: flex-end;
    }
    
    .calculator__btn-prev {
        order: 1;
    }
    
    .calculator__btn-next,
    .calculator__btn-submit {
        order: 2;
    }
}