.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10vh 0;
    height: fit-content;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.auth-box {
    background: var(--white);
    border-radius: 12px;
    padding: 40px 36px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 420px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

    .auth-box:hover {
        transform: translateY(-4px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
    }

.auth-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 25px;
}

.auth-form .input-group {
    position: relative;
    margin-bottom: 18px;
}

    .auth-form .input-group i {
        position: absolute;
        top: 50%;
        left: 14px;
        transform: translateY(-50%);
        color: var(--text-mute);
        font-size: 16px;
    }

.auth-form input {
    width: 100%;
    padding: 12px 14px 12px 38px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 15px;
    color: var(--text-color);
    background: var(--white);
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
}

    .auth-form input:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(12, 89, 210, 0.2);
        outline: none;
        background-color: #f9fbff;
    }

.btn-auth {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--white);
    background: var(--primary-color);
    transition: background 0.3s, transform 0.2s;
}

    .btn-auth:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
    }

.btn-google {
    margin-top: 15px;
    background-color: var(--white);
    border: 1px solid #dadce0;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #3c4043;
    font-weight: 500;
    text-decoration: none;
    gap: 10px;
}

    .btn-google img {
        width: 20px;
        height: 20px;
    }

    .btn-google:hover {
        background-color: #f7f8f8;
    }


.auth-footer {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-mute);
}

    .auth-footer .link-login,
    .auth-footer .link-register {
        color: var(--primary-color);
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s, text-decoration 0.3s;
    }

        .auth-footer .link-login:hover,
        .auth-footer .link-register:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

.alert {
    border-radius: 8px;
    padding: 10px 15px;
    font-size: 14px;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-danger {
    background: #fdecea;
    color: var(--danger-color);
    border: 1px solid #f5c2c7;
}

.alert-success {
    background: #e8f8ed;
    color: #0c7a2d;
    border: 1px solid #b7e4c7;
}

/* === Responsive === */
@media (max-width: 480px) {
    .auth-box {
        padding: 30px 24px;
    }

    .auth-title {
        font-size: 22px;
    }

    .auth-form input {
        font-size: 14px;
    }

    .btn-auth {
        font-size: 15px;
    }
}