.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
    background: #1e1e1e;
    border-radius: 1.5vh;
    padding: 3vh;
    box-shadow: 0 1.5vh 4.5vh rgba(0, 0, 0, 0.6);
    text-align: center;
    align-items: center;
    justify-content: center;
    width: 30vw;
    height: auto;
    overflow-y: auto;
    opacity: 0;
    animation: modalFadeIn 0.4s forwards;
    color: #f0f0f0;
}

.modal .close {
    position: absolute;
    right: 2vw;
    top: 2vh;
    font-size: 3.5vh;
    color: #f0f0f0;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal .close:hover {
    color: #f0c4c4;
}

.title-modal {
    font-size: 5vh;
    font-weight: 700;
    margin-top: 1vh;
    margin-bottom: 3vh;
    color: #f0f0f0;
}

/* Поля ввода */
.input-div {
    width: 100%;
}

.signup-email-hint, .signin-email-hint {
    margin-bottom: 1.2vh;
    font-size: 2vh; 
    margin-top: 0.5vh;
}

.input-div input {
    padding: 1.5vh;
    border: 0.3vh solid #444;
    border-radius: 1vh;
    width: 100%;
    font-size: 2.5vh; 
    box-sizing: border-box;
    background-color: #2a2a2a;
    color: #f0f0f0;
    transition: border 0.3s, box-shadow 0.3s;
}

.input-div input:focus {
    border-color: #ffbe33;
    box-shadow: 0 0 1.5vh rgba(0, 123, 255, 0.4);
    outline: none;
}

.input-div input.input-error {
    border-color: red;
    box-shadow: 0 0 1.5vh rgba(255, 0, 0, 0.5);
}

/* Кнопки Submit */
.btn-div {
    width: 100%;
    margin-top: 1.5vh;
    text-align: center;
    align-items: center;
    justify-content: center;
}

.submit {
    width: 70%;
    margin: 0;
    padding: 1.5vh;
    background-color: #e69c00;
    border: none;
    font-size: 3vh; 
    border-radius: 4vh;
    cursor: pointer;
    color: #fff;
    font-weight: bold;
    transition: all 0.4s ease;
}

.submit:hover {
    background-color: #e69d00d6;
}

.password-hint {
    font-size: 2vh; 
    color: red; 
    margin-top: 0.5vh;
}

.links {
    flex-direction: column;
}

.signup-div-link, .signin-div-link {
    font-size: 2vh;
    margin-top: 2vh;
    display: block;
}

.forgotPassword-div-link {
    font-size: 2vh;
    display: block;
}

#signinLink, #signupLinkFromSignin, #signupLinkFromForgotPassword, #forgotPasswordLinkFromSignin, #forgotPasswordLinkFromSignup {
    font-size: 2vh;
    cursor: pointer;
    margin-left: 0;
    color: #0099ff;
    text-decoration: none;
    transition: color 0.3s;
}

#signinLink:hover, #signupLinkFromSignin:hover, #signupLinkFromForgotPassword:hover, #forgotPasswordLinkFromSignin:hover, #forgotPasswordLinkFromSignup:hover {
    color: #66ccff;
    text-decoration: underline;
}

/* Анимация */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -55%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.shake {
    animation: shake 0.3s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    50% { transform: translateX(3px); }
    75% { transform: translateX(-3px); }
}