body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg,#b9b8d8 0%, #4b4a87 60%);
    position: relative;
    overflow: hidden;
}

    /* بک گراند مورب */
    body::before {
        content: "";
        position: absolute;
        right: -20%;
        top: 0;
        width: 70%;
        height: 100%;
        background: #2e2d63;
        transform: skewX(-25deg);
        z-index: 0;
    }

    main{
        display:flex;
        justify-content:center;
        align-items:center;
    }

.login-container {
    position: relative;
    z-index: 2;
    width: 380px;
    padding: 45px 35px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    text-align: center;
    color: #fff;
}

    .login-container h2 {
        margin-bottom: 30px;
        font-weight: 700;
    }

.register-container {
    position: relative;
    z-index: 2;
    width: 480px;
    padding: 45px 40px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    text-align: center;
    color: #fff;
}

    .register-container h2 {
        margin-bottom: 30px;
        font-weight: 700;
    }

.form-group {
    position: relative;
    margin-bottom: 25px;
}

    .form-group input {
        width: 100%;
        padding: 14px 10px;
        border: none;
        border-radius: 12px;
        outline: none;
        background: rgba(255,255,255,0.25);
        color: #fff;
        font-size: 14px;
    }

    .form-group label {
        position: absolute;
        top: 14px;
        right: 20px;
        font-size: 13px;
        color: #eee;
        pointer-events: none;
        transition: 0.3s ease;
    }

    .form-group input:focus + label,
    .form-group input:not(:placeholder-shown) + label {
        top: -8px;
        right: 10px;
        font-size: 11px;
        background: #4b4a87;
        padding: 0 6px;
        border-radius: 6px;
    }

.login-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: #f28c28;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 8px 20px rgba(242,140,40,0.4);
}

    .login-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 25px rgba(242,140,40,0.6);
    }

.extra-links {
    margin-top: 18px;
    font-size: 13px;
}

    .extra-links a {
        display:block;
        margin-bottom:1%;
        color: #fff !important;
        text-decoration: none;
        opacity: 0.8;
        transition: 0.3s;
    }

        .extra-links a:hover {
            opacity: 1;
        }

.row {
    display: flex;
    gap: 15px;
}

    .row .form-group {
        flex: 1;
    }

.register-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 14px;
    background: #f28c28;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 8px 20px rgba(242,140,40,0.4);
    margin-top: 10px;
}

    .register-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 25px rgba(242,140,40,0.6);
    }
/* ریسپانسیو */
@media(max-width:480px) {
    .login-container {
        width: 90%;
        padding: 35px 25px;
    }
    .register-container {
        width: 90%;
        padding: 35px 25px;
    }

    .row {
        flex-direction: column;
    }
}