.auth-form {
        display: flex;
        flex-direction: column;
        gap: 1.3rem;
        max-height: 70vh;
        overflow-y: auto;
        padding-right: 10px;
        scrollbar-width: thin;
        scrollbar-color: #347fdc #e2edf7;
    }

    .auth-form::-webkit-scrollbar {
        width: 8px;
    }

    .auth-form::-webkit-scrollbar-track {
        background: #e2edf7;
        border-radius: 10px;
    }

    .auth-form::-webkit-scrollbar-thumb {
        background: #347fdc;
        border-radius: 10px;
        transition: background 0.3s;
    }

    .auth-form::-webkit-scrollbar-thumb:hover {
        background: #1a5faa;
    }

    .form-group label {
        font-family: 'Montserrat', sans-serif;
        font-size: 0.91rem;
        font-weight: 600;
        color: #6c7f8f;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        display: block;
        margin-bottom: 0.39rem;
    }

    .form-group input,
    .form-group select {
        width: 100%;
        padding: 16px 18px;
        font-family: 'Montserrat', sans-serif;
        font-size: 1.17rem;
        border: 1.5px solid #e2edf7;
        border-radius: 18px;
        background: #ffffff;
        outline: none;
        appearance: none;
        transition: border-color 0.3s;
    }

    .form-group input:focus,
    .form-group select:focus {
        border-color: #347fdc;
        box-shadow: 0 0 0 3px rgba(52, 127, 220, 0.15);
    }

    .field-error {
        font-family: 'Montserrat', sans-serif;
        font-size: 0.845rem;
        color: #d32f2f;
        margin-top: 0.26rem;
    }

    .form-error {
        background: #fee8e8;
        color: #d32f2f;
        font-family: 'Montserrat', sans-serif;
        font-size: 0.975rem;
        padding: 10px 21px;
        border-radius: 16px;
    }

    /* Стили для чекбокса */
    .checkbox-group {
        margin-top: 0.5rem;
        padding: 12px 16px;
        background: #f8f9fa;
        border-radius: 16px;
        border: 2px solid #e2edf7;
        transition: border-color 0.3s, background 0.3s;
    }

    .checkbox-group.checked {
        border-color: #347fdc;
        background: #f0f7ff;
    }

    .checkbox-group.error {
        border-color: #d32f2f;
        background: #fff5f5;
    }

    .checkbox-label {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        cursor: pointer;
        font-family: 'Montserrat', sans-serif;
        font-size: 0.95rem;
        color: #333;
        line-height: 1.5;
        position: relative;
        padding-left: 36px;
        user-select: none;
    }

    .checkbox-label input[type="checkbox"] {
        position: absolute;
        opacity: 0;
        width: 0;
        height: 0;
        padding: 0;
        margin: 0;
    }

    .checkmark {
        position: absolute;
        left: 0;
        top: 2px;
        width: 24px;
        height: 24px;
        background: white;
        border: 2px solid #ccc;
        border-radius: 6px;
        transition: all 0.3s;
        flex-shrink: 0;
    }

    .checkbox-label:hover .checkmark {
        border-color: #347fdc;
    }

    .checkbox-label input:checked ~ .checkmark {
        background: #347fdc;
        border-color: #347fdc;
    }

    .checkbox-label input:checked ~ .checkmark::after {
        content: '';
        position: absolute;
        left: 8px;
        top: 4px;
        width: 6px;
        height: 12px;
        border: solid white;
        border-width: 0 2px 2px 0;
        transform: rotate(45deg);
    }

    .checkbox-group.error .checkmark {
        border-color: #d32f2f;
    }

    .checkbox-text {
        font-size: 0.95rem;
        color: #444;
        line-height: 1.5;
    }

    .policy-link {
        color: #347fdc;
        text-decoration: underline;
        font-weight: 600;
        transition: color 0.2s;
    }

    .policy-link:hover {
        color: #1a5faa;
    }

    .btn-submit {
        background: #347fdc;
        color: white;
        font-family: 'Montserrat', sans-serif;
        font-weight: 700;
        font-size: 1.3rem;
        padding: 16px 31px;
        border: none;
        border-radius: 78px;
        cursor: pointer;
        margin-top: 0.65rem;
        transition: background 0.2s, transform 0.1s, opacity 0.3s;
    }

    .btn-submit:hover:not(:disabled) {
        background: #1a5faa;
        transform: scale(1.01);
    }

    .btn-submit:active:not(:disabled) {
        transform: scale(0.98);
    }

    .btn-submit:disabled {
        background: #b0c4de;
        cursor: not-allowed;
        opacity: 0.7;
    }

    .auth-login-link {
        text-align: center;
        margin-top: 1.95rem;
        font-family: 'Montserrat', sans-serif;
        font-size: 1.105rem;
        color: #6c7f8f;
    }

    .auth-login-link a {
        color: #347fdc;
        font-weight: 700;
        text-decoration: none;
        transition: color 0.2s;
    }

    .auth-login-link a:hover {
        color: #1a5faa;
        text-decoration: underline;
    }

    @media (max-width: 768px) {
        .auth-form {
            max-height: 60vh;
            padding-right: 8px;
            gap: 1rem;
        }

        .auth-form::-webkit-scrollbar {
            width: 6px;
        }

        .form-group input,
        .form-group select {
            padding: 14px 16px;
            font-size: 1.1rem;
            border-radius: 16px;
        }

        .checkbox-label {
            font-size: 0.9rem;
            padding-left: 32px;
            gap: 10px;
        }

        .checkmark {
            width: 20px;
            height: 20px;
            top: 1px;
        }

        .checkbox-label input:checked ~ .checkmark::after {
            left: 6px;
            top: 3px;
            width: 5px;
            height: 10px;
        }

        .checkbox-text {
            font-size: 0.88rem;
        }

        .checkbox-group {
            padding: 10px 14px;
        }

        .btn-submit {
            font-size: 1.2rem;
            padding: 16px;
            border-radius: 40px;
        }
    }

    @media (max-width: 400px) {
        .auth-form {
            max-height: 55vh;
            padding-right: 4px;
        }

        .auth-form::-webkit-scrollbar {
            width: 4px;
        }

        .form-group input,
        .form-group select {
            padding: 12px 14px;
            font-size: 1rem;
        }

        .checkbox-label {
            font-size: 0.82rem;
            padding-left: 28px;
            gap: 8px;
        }

        .checkmark {
            width: 18px;
            height: 18px;
            top: 1px;
        }

        .checkbox-label input:checked ~ .checkmark::after {
            left: 5px;
            top: 2px;
            width: 5px;
            height: 9px;
        }

        .checkbox-text {
            font-size: 0.8rem;
        }

        .checkbox-group {
            padding: 8px 12px;
        }
    }